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Development:Pokémon Red and Blue/Unused Maps

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This is a sub-page of Development:Pokémon Red and Blue.

A large amount of maps were archived in the source code, albeit with a lot of them being subject to what was either corruption, or incorrect parameters. Despite this, these maps give us an incredibly informative glimpse regarding how the region of Kanto evolved over time.

Contents

"Version 1"

Overview

The earliest known iteration of Kanto, which appears to date back to around 1992. While the overworld layout had already been established, many of the routes at this point are just blank roads, and several cities have practically nothing interesting in them. The tileset used is also much simpler and cruder than in later iterations, with perspective namely being amiss, and the art style being radically different. The Makai Toushi SaGa inspiration is on full force here.

Though in surprisingly good shape, this early Kanto does however contain instances of maps using the wrong blocks. The first one is a building chunk with "CVS" sign on it, which, given its placement, was likely a duplicate of block 1A that was later overwritten. The second is less clear, but may have been a duplicate of block 56. The third block was definitely where the "CVS" block was meant to be used. As for the fourth block, it is unique to the north-most mall building in Vermilion City, and was likely a scrapped wall type.

Block ID Incorrect Block Proper Block
55 PokeRG V1 Incorrect Block 1.png PokeRG V1 Proper Block 1.png
5F PokeRG V1 Incorrect Block 2.png PokeRG V1 Proper Block 3.png
60 PokeRG V1 Incorrect Block 2.png PokeRG V1 Proper Block 2.png
61 PokeRG V1 Incorrect Block 2.png PokeRG V1 Proper Block 4.png

Exteriors

Pallet Town

Early Map

TOWN01.DAT

Final Map

NTOWN_01.MAP

PokeRG Pallet Town CapMon.png
PokeRG Pallet Town Final.png

Only contains two small buildings, meaning that Professor Oak's lab is absent, with him either living with his family, or having his lab in another city. The map is also surrounded by water on all sides, instead of just having a beach to the south. Trees also border the town, as opposed to the final games' bollards. Tall grass is also found inside the town, as well as a few other cities throughout Kanto, though it's likely they were just purely decorative weeds.

Route 1

Early Map

ROAD01.DAT

Final Map

NROAD_01.MAP

PokeRG Route 1 CapMon.png
PokeRG Route 1 Final.png

Is more densely wooded, features less tall grass, and has a more natural curvy path. Also worth noting is that across this iteration of Kanto are a series of numbered signs, with them likely intended to display the current route's number. However, they all state "15", likely because the other number tiles had not been implemented yet. Numbered route signs wouldn't reappear until years later, in Pokémon X and Y, but have appeared in every game since.

Viridian City

Early Map

TOWN02.DAT

Final Map

NTOWN_02.MAP

PokeRG Viridian City CapMon.png
PokeRG Viridian City Final.png

The overall layout is the same, though the body of water is missing, and the way to Route 22 is blocked off by fences. As for the wooded area, it is found in the upper-right corner of town as opposed to the upper-left one, and its shape seems to indicate it had originally been designed to hold items.

Interestingly, the roads exiting town are paved, while Route 1 and 2 are completely grassy. This is perhaps a leftover from an even earlier iteration of Kanto, where Route 1 and 2 were still placeholder paved roads.

Route 2

Early Map

ROAD02.DAT

Final Map

NROAD_02.MAP

PokeRG Route 2 CapMon.png
PokeRG Route 2 Final.png

The lower half of this route is the most different, featuring more tall grass as well as a river and bridge, which are nowhere to be seen in the final games. A clearing sits where Viridian Forest normally lies, and the entrance to Diglett's Cave is quite larger. No houses nor gates are present in this iteration.

Pewter City

Early Map

TOWN03.DAT

Final Map

NTOWN_03.MAP

PokeRG Pewter City CapMon.png
PokeRG Pewter City Final.png

While the layout is somewhat similar, this area is nonetheless very different. Namely, where the Gym normally lies is a large C-shaped building, and the two bodies of water swapped with an enclosed flower patch. The paved road oddity from Viridian City also carries on to here. Interestingly, there are mountains to the north of the city, as there would later be in HeartGold and SoulSilver.

Route 3

Early Map

ROAD03.DAT

PokeRG Route 3 CapMon.png
Final Map

NROAD_03.MAP

PokeRG Route 3 Final.png

The first of the placeholder routes. Indeed, virtually all routes here are wide empty roads, the latter ones styled after highways, with the corresponding route number written out of tall grass, though Route 3 notably lacks the latter aspect.

Route 4

Early Map

ROAD04.DAT

PokeRG Route 4 CapMon.png
Final Map

NROAD_04.MAP

PokeRG Route 4 Final.png

A stand-in for Route 4, whose latter half lacks pavement, let alone any hint of Mt. Moon.

Cerulean City

Early Map (Original)

TOWN04.DAT

PokeRG Cerulean City CapMon.png
Early Map (Corrected)
PokeRG Cerulean City Capmon Corrected.png
Final Map

NTOWN_04.MAP

PokeRG Cerulean City Final.png

Is way less populated, and features less water overall, ironically enough. Namely lacks the entrance to Cerulean Cave, instead having an odd barren island in the top right corner of town. Only worth noting is a rather odd looking pretzel-shaped Inn.

Route 24

Early Map

ROAD24.DAT

Final Map

NROAD_24.MAP

PokeRG Route 24 CapMon.png
PokeRG Route 24 Final.png

A stand-in for Route 24.

Route 25

Early Map

ROAD25.DAT

PokeRG Route 25 CapMon.png
Final Map

NROAD_25.MAP

PokeRG Route 25 Final.png

A stand-in for Route 25, appropriately ending in a dead-end in this iteration.

Route 9

Early Map

ROAD09.DAT

PokeRG Route 9 CapMon.png
Final Map

NROAD_09.MAP

PokeRG Route 9 Final.png

A stand-in for Route 9.

Route 10

Early Map

ROAD10.DAT

Final Map

NROAD_10.MAP

PokeRG Route 10 CapMon.png
PokeRG Route 10 Final.png

A stand-in for Route 10, with Rock Tunnel nowhere to be seen.

Lavender Town

Early Map (Original)

TOWN05.DAT

Early Map (Corrected) Final Map

NTOWN_05.MAP

PokeRG Lavender Town CapMon.png PokeRG Lavender Town CapMon Corrected.png PokeRG Lavender Town Final.png

Has a completely different layout, lacking the iconic Pokémon Tower and a lot of the houses. Looks more like a typical drive-by town, with very few houses, a minuscule convenience store, and an overgrown hotel. Appears to have once been open to the water to the east, while in the final games, the closest source of water is south, with mountains directly east.

Route 5

Early Map

ROAD05.DAT

Final Map

NROAD_05.MAP

PokeRG Route 5 CapMon.png
PokeRG Route 5 Final.png

A stand-in for Route 5.

Route 6

Early Map

ROAD06.DAT

Final Map

NROAD_06.MAP

PokeRG Route 6 CapMon.png
PokeRG Route 6 Final.png

A stand-in for Route 6.

Vermilion City

Early Map (Original)

TOWN06.DAT

Early Map (Corrected) Final Map

NTOWN_06.MAP

PokeRG Vermillion City CapMon.png PokeRG Vermillion City CapMon Corrected.png PokeRG Vermillion City Final.png

Has a completely different layout, lacking the iconic harbor and featuring quite a lot of tall grass. Appears to have been conceptually switched with Celadon City, as here the town is seen sporting two large convenience stores (later reworked into the Department Store), as well as what is likely the Celadon Mansion (as seen by the GF logo by the entrance of town).

Route 8

Early Map

ROAD08.DAT

PokeRG Route 8 CapMon.png
Final Map

NROAD_08.MAP

PokeRG Route 8 Final.png

A stand-in for Route 8.

Route 7

Early Map

ROAD07.DAT

Final Map

NROAD_07.MAP

PokeRG Route 7 CapMon.png PokeRG Route 7 Final.png

A stand-in for Route 7.

Celadon City

Early Map (Original)

TOWN07.DAT

Early Map (Corrected) Final Map

NTOWN_07.MAP

PokeRG Celadon City CapMon.png PokeRG Celadon City CapMon Corrected.png PokeRG Celadon City Final.png

Has a completely different layout, lacking the iconic department store and a lot of the houses. Appears to have been conceptually switched with Vermilion City, as here the town is seen sporting what is likely a harbor, that and it is also surrounded by water, while the final city is completely landlocked. Oddly enough, this town features no less than three department stores.

Route 11

Early Map

ROAD11.DAT

PokeRG Route 11 CapMon.png
Final Map

NROAD_11.MAP

PokeRG Route 11 Final.png

A stand-in for Route 11, with Diglett's Cave secondary entrance nowhere to be seen.

Route 12

Early Map

ROAD12.DAT

Final Map

NROAD_12.MAP

PokeRG Route 12 CapMon.png
PokeRG Route 12 Final.png

A stand-in for Route 12.

Route 13

Early Map

ROAD13.DAT

PokeRG Route 13 CapMon.png
Final Map

NROAD_13.MAP

PokeRG Route 13 Final.png

A stand-in for Route 13.

Route 14

Early Map

ROAD14.DAT

Final Map

NROAD_14.MAP

PokeRG Route 14 CapMon.png
PokeRG Route 14 Final.png

A stand-in for Route 14, with the road containing striped lanes.

Route 15

Early Map

ROAD15.DAT

PokeRG Route 15 CapMon.png
Final Map

NROAD_15.MAP

PokeRG Route 15 Final.png

A stand-in for Route 15.

Route 16

Early Map

ROAD16.DAT

PokeRG Route 16 CapMon.png
Final Map

NROAD_16.MAP

PokeRG Route 16 Final.png

The first of the highway-themed placeholder routes. This one having a somewhat crude "6".

Route 17

Early Map

ROAD17.DAT

Final Map

NROAD_17.MAP

PokeRG Route 17 CapMon.png PokeRG Route 17 Final.png

The second highway stand-in route. Compared to most of the routes, this one didn't change much in the final games. Lacks the usual tall grass route number.

Route 18

Early Map

ROAD18.DAT

PokeRG Route 18 CapMon.png
Final Map

NROAD_18.MAP

PokeRG Route 18 Final.png

The last highway stand-in route.

Fuchsia City

Early Map (Original)

TOWN08.DAT

Early Map (Corrected) Final Map

NTOWN_08.MAP

PokeRG Fuchsia City CapMon.png PokeRG Fuchsia City CapMon Corrected.png PokeRG Fuchsia City Final.png

Completely vacant aside from two buildings. While it lacks any hint of a Safari Zone, the northern half of town is oddly opened-up, which would made sense as a previous Kanto layout had a route north of town.

Route 19

Early Map

ROAD19.DAT

Final Map

NROAD_19.MAP

PokeRG Route 19 CapMon.png PokeRG Route 19 Final.png

An early version of Route 19. Is entirely made out of land, whereas the final version is a sea route which only features a very small northern shore. Also present are two buildings, and while the final games has none here, Yellow would later add the Summer Beach House on this route.

Route 20

Early Map

ROAD20.DAT

PokeRG Route 20 CapMon.png
Final Map

NROAD_20.MAP

PokeRG Route 20 Final.png

An early version of Route 20. Only features a tiny isle in lieu of the Seafoam Island. Interestingly lacks bollards restricting the player's path, which is also the case with other areas.

Cinnabar Island

Early Map

TOWN09.DAT

Final Map

NTOWN_09.MAP

PokeRG Cinnabar Island CapMon.png PokeRG Cinnabar Island Final.png

A stand-in for Cinnabar Island, using the number 9, its corresponding number as seen in the Capsule Monster design documents, which is reflected in it being the ninth Fly landmark.

Route 21

Early Map

ROAD21.DAT

Final Map

NROAD_21.MAP

PokeRG Route 21 CapMon.png PokeRG Route 21 Final.png

An early version of Route 21, with it featuring a lot of small isles instead of a few piers. Interestingly, starting with FireRed and LeafGreen, this route would ultimately end up sporting a series of small islands.

Route 22

Early Map

ROAD22.DAT

PokeRG Route 22 CapMon.png
Final Map

NROAD_22.MAP

PokeRG Route 22 Final.png

A stand-in for Route 22, with the Route 23 side being more overgrown with grass than the Viridian City side.

Route 23

Early Map

ROAD23.DAT

Final Map

NROAD_23.MAP

PokeRG Route 23 CapMon.png PokeRG Route 23 Final.png

A completely different earlier iteration of Route 23, with it appearing as a winding mountain path (which would explain the final area it leads to being called a "plateau") which lacks any sort of water, man-made structures, or even Victory Road. The concept of the final boss of the game being at the end of a mountain climb would be used in Generation 2.

Indigo Plateau

Early Map

TOWN10.DAT

Final Map

POKECEN.MAP

PokeRG Indigo Plateau CapMon.png PokeRG Indigo Plateau Final.png

Another wildly different design, with an imposing cave standing where the League sits in the final games. The League had definitely not been conceived yet, and if anything the dungeon that would have been found here is closer to what the Victory Road would end up being. A small hole can also be seen in the upper-right corner, perhaps originally intended for the player to access an otherwise inaccessible portion of the cave system below.

Saffron City

Early Map

TOWN11.DAT

Final Map

NTOWN_11.MAP

PokeRG Saffron City CapMon.png
PokeRG Saffron City Final.png

Completely vacant, being little more than a partially blocked-off crossroad.

Scrapped Town

PokeRG Town C CapMon.png

TOWN12.DAT is a town that was scrapped early in development, and likely corresponds to the area referred to as "C" in the design documents. What was seemingly alluded to as a city the size of Saffron City turns out to be a town the size of Pallet Town, with the purpose of this area still as unclear as it was before. Given the glaring discrepency with the design docs, it's possible that the original "C Town" map was actually overwritten by the one we see here. This would make sense, as this area actually looks a lot like an intermediary Pallet Town, with two houses, an important building, and even a grass patch in basically the same spot as in the final games. The fences down south would then theoretically block access to Route 21, just like how Route 22 is gated-off in Viridian City.

Worth noting is that this is also the only place in this iteration of Kanto where a truck is found. The exact same graphic would make its way into final game, found offscreen in the Vermilion City harbor.

Interiors

Poké Mart (Standard)

Early Map

SHOP1DAT

Final Map

SHOP.MAP

PokeRG Mart CapMon.png
PokeRG Mart Final.png

An early Poké Mart which features way less shelves, as well as a counter that is in front of the entrance, as opposed to beside it.

Poké Mart (Large)

Early Map

T6S2.DAT

Final Map

DEPT2F.MAP

PokeRG Large Mart CapMon.png
PokeRG Dpt Store Final.png

A larger version of the Poké Mart seemingly intended for the Vermillion City department store. Ultimately reworked into the upper floors of the Celadon City department store.

Champ Cup

PokeRG Champ Cup.png

Found under CHAMPCUP.MAP is the original incarnation of Pokémon Gyms. This is supported by numerous details found in the source code, such as how the internal name for the Gym tileset is "CHAMPCUP_TYPE". Moreover, internal names for the overworld sprites reveal that Lance's spot was originally occupied by an NPC type known as "Judge", whose role would have likely been that of the anime's battle judges.

"Version 2"

Overview

In comparison to the "V1" overworld, this iteration of Kanto, which appears to date back to around 1994, comes with a catch. It didn't come with any exterior blocksets or tilesets, and using the ones from the final games renders most areas as almost completely undecipherable. This isn't helped by the fact that some blocks appear to have been mistakenly placed when the maps were being made, or that some buildings were clearly still placeholders. Moreover, a handful of maps are partially missing, sometimes even completely (in the case of Viridian, Pewter, and Route 18), which was perhaps due to memory corruption or incorrect parameters. As such, red bollards will be used to denote missing map portions. In most cases, the file names are identical to the final maps, but with a different extension. As a result, only the exceptions will have their file name shown.

With a little bit of work to restore these maps, a number of interesting differences can be noted. Though worth noting is that because of the lack of a tileset, the final Red and Green tileset will be used instead. As for the blockset, a possible reconstruction of the early one used by these maps will be provided below.

Early Blockset Final Blockset
PokeRG Blockset V2.png
PokeRG Blockset Final.png

Exteriors

Pallet Town

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Pallet Town V2.png PokeRG Palette Town V2 Corrected.png PokeRG Pallet Town Final.png

Is still surrounded by trees, has tall grass, smaller houses, and lacks the bollards blocking the path to Route 21. Otherwise pretty much identical to final.

Route 1

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 1 V2.png PokeRG Route 1 V2 Corrected.png PokeRG Route 1 Final.png

Has one less wild grass patch when compared to V1, and thanks to the tileset, has an even more natural look as well. Still wildly different from the final layout.

Route 2

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 2 V2.png PokeRG Route 2 V2 Corrected.png PokeRG Route 2 Final.png

Now features cuttable trees, though cutting them only reveals separate areas instead of the straight shortcut seen in the final games. Viridian Forest is also completely missing, and the entrance to Diglett's Cave is a house, despite being a cave in V1. Interestingly, as seen here and all throughout this version of Kanto, gate houses appear to have not been implemented yet. As such, the extra houses were likely used as makeshift gate houses. Still wildly different from the final layout.

Route 3

Early Map
PokeRG Route 3 V2.png
Corrected Early Map
PokeRG Route 3 V2 Corrected.png
Final Map
PokeRG Route 3 Final.png

The first of the partially missing maps. Also has what appears to be unintentionally shuffled tiles on the rightmost side. The visible layout, however, does appear almost identical to final, though with fewer ledges, a paved road, and more tall grass.

Route 4

Early Map
PokeRG Route 4 V2.png
Corrected Early Map
PokeRG Route 4 V2 Corrected.png
Final Map
PokeRG Route 4 Final.png

Has a less hilly landscape, while the entrance and exit to Mt. Moon are farther apart. Speaking of Mt. Moon, it seemingly started off as an optional dungeon, not unlike Mt. Mortar in Pokémon Gold and Silver, before ultimately being made required in the final games.

Cerulean City

Early Map
PokeRG Cerulean City V2.png
Corrected Early Map
PokeRG Cerulean City V2 Corrected.png
Final Map
PokeRG Cerulean City Final.png

While almost entirely missing, the remaining portion of the map shows a similar layout, though namely lacking the exit to the Route 25 shortcut, which as seen on Route 24 and 25 had not been conceived yet.

Route 24

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 24 V2.png PokeRG Route 24 V2 Corrected.png PokeRG Route 24 Final.png

Is entirely surrounded by water, the stretch of tall grass starts higher up and is longer, and as mentioned above, the shortcut is missing entirely. If anything, a precursor to the shortcut might be the small road which goes above the main path, and which for all we know may have skipped a couple trainer battles.

Route 25

Early Map
PokeRG Route 25 V2.png
Corrected Early Map
PokeRG Route 25 V2 Corrected.png
Final Map
PokeRG Route 25 Final.png

Has a much simpler layout, lacks the tree maze and pond, and is once again entirely surrounded by water. Bill's Cottage is present, though his house is smaller, and thus lacks its iconic "garden".

Route 9

Early Map
PokeRG Route 9 V2.png
Corrected Early Map
PokeRG Route 9 V2 Corrected.png
Final Map
PokeRG Route 9 Final.png

Has a much simpler layout, being a rather straight paved road instead of a winding mountain path. Also features more water, and lack the inconvenient cuttable tree, meaning you may have been able to reach Rock Tunnel without anything blocking your path. This was likely changed so that the player wouldn't get lost trying to navigate the cave without Flash. This route also features a little area blocked by cuttable trees, likely once the place where an item resided.

Route 10

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 10 V2.png PokeRG Route 10 V2 Corrected.png PokeRG Route 10 Final.png

Surprisingly close to final, with only a cave entrance sitting where the Power Plant should be. The Pokémon Center also appears to just be an ordinary house, possibly no more than a rest house. The Pokémon Tower also extends much farther up into this map.

Lavender Town

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Lavender Town V2.png PokeRG Lavender Town V2 Corrected.png PokeRG Lavender Town Final.png

Now much closer to the final version, though with way more signs, a trait shared with a few other areas. It's then possible these acted as in-game sticky notes (containing basic story details and other things to remember), or perhaps even story event switches ("Clear Pokémon Tower", "Rescue Mr.Fuji", and so on). The Pokémon Tower is also made out of Gym building here, and is slimmer than what is seen on Route 10, suggesting that the latter was likely made later down the line. Another area blocked off by cuttable trees can be seen, likely where an item could be found.

Route 5

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 5 V2.png PokeRG Route 5 V2 Corrected.png PokeRG Route 5 Final.png

Another partially missing map, though this one at least comes with an interesting placeholder design for the gate building. Also seen here on the left is what's likely the entrance to the cut Route 5--7 Underground Path. This map, in addition to Route 9, suggests that Cerulean City had a lot more water along its southern border than it does in the final games.

Route 6

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 6 V2.png PokeRG Route 6 V2 Corrected.png PokeRG Route 6 Final.png

A simple straight paved road. Features a somewhat redundant alternate path which leads directly to Vermillion City's Pokémon Center, but there is blocked by a cuttable tree.

Vermilion City

Early Map Corrected Early Map Final Map
PokeRG Vermillion City V2.png PokeRG Vermillion City V2 Corrected.png PokeRG Vermillion City Final.png

Still a bit barebones, lacking the Fishing Guru's house, and featuring less water overall. Interestingly, the Gym isn't blocked by anything, and the large mass of bollards at the bottom seems to have been the harbor, which in the final games is found on a separate map. Funnily enough, the "Machop plot" is already present.

Route 8

Early Map (Original)
PokeRG Route 8 V2.png
Early Map (Corrected)
PokeRG Route 8 V2 Corrected.png
Final Map
PokeRG Route 8 Final.png

Has a somewhat similar layout, but lacks the ledges and enclosed patch of tall grass. Instead features little ponds not seen anywhere on the final map.

Route 7

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 7 V2.png PokeRG Route 7 V2 Corrected.png PokeRG Route 7 Final.png

Pretty much identical to final, though lacking the tall grass and featuring an extra house, likely the entrance to the unused Route 5--7 Underground Path.

Celadon City

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Celadon City V2.png PokeRG Celadon City V2 Corrected.png PokeRG Celadon City Final.png

Has a somewhat similar layout, though lacking a lot of houses. While the grass along the border of the city is present, it's inaccessible in this iteration, as there are no cuttable trees.

Route 11

Early Map
PokeRG Route 11 V2.png
Corrected Early Map
PokeRG Route 11 V2 Corrected.png
Final Map
PokeRG Route 11 Final.png

Lacks the winding grass path, and features two mistakenly placed pier blocks. The exit to Diglet's Cave's is once again represented by a house.

Route 12

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 12 V2.png PokeRG Route 12 V2 Corrected.png PokeRG Route 12 Final.png

Lacks the mountainous part at the top, and is a simple paved road instead of the series of piers, though it is interesting for featuring four rock formations at the crossroad. While the gaps between them is too wide for Snorlax to fill them it's possible that it wasn't originally intended to serve as a progression blocker. The bottom of the road, meanwhile, has some rather interesting looking cliffsides, which are nowhere to be seen in the final games, giving the area a more scenic look.

Route 13

Early Map (Original)
PokeRG Route 13 V2.png
Early Map (Corrected)
PokeRG Route 13 V2 Corrected.png
Final Map
PokeRG Route 13 Final.png

Largely similar to V1, still lacking the pole maze and the patch of grass. But it has been given a cliffside at least!

Route 14

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 14 V2.png PokeRG Route 14 V2 Corrected.png PokeRG Route 14 Final.png

Another map that was almost entirely wiped by corruption. Not much seems to have been lost however, as it looks more-or-less similar to V1.

Route 15

Early Map (Original)
PokeRG Route 15 V2.png
Early Map (Corrected)
PokeRG Route 15 V2 Corrected.png
Final Map
PokeRG Route 15 Final.png

Is surrounded by water, and features no tall grass or split path.

Route 16

Early Map (Original) Left
Early Map (Corrected)
PokeRG Route 16 V2 Corrected.png
Final Map
PokeRG Route 16 Final.png

Basically identical to final, though being noticeably more spacious, supporting the idea that Snorlax wasn't originally intended to block parts of the overworld.

Route 17

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 17 V2.png PokeRG Route 17 V2 Corrected.png PokeRG Route 17 Final.png

Interestingly features an opening on the right side which lines up pretty close with the scrapped alternate "road 9-3" from the concept pitch. This may suggest that this route was originally mistakenly built using outdated reference material, before being hastily corrected.

Sadly, in this iteration of Kanto, Route 18's map has seemingly been overwritten by a duplicate of Route 17's map

Fuchsia City

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Fuchsia City V2.png PokeRG Fuchsia City V2 Corrected.png PokeRG Fuchsia City Final.png

Is surrounded by water and lacks a lot of houses, in addition to the Gym, though what are likely the Warden's house and Bill's relative's house are already there. The exhibits are nowhere to be seen, and the Safari Zone building appears to have once been entered from the left as opposed to from the front.

Route 19

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 19 V2.png PokeRG Route 19 V2 Corrected.png PokeRG Route 19 Final.png

Not that different from V1 from what can be seen, though the pier and cliff wall could be seen as an improvement over the water in V1.

Route 20

Early Map (Original)
PokeRG Route 20 V2.png
Early Map (Corrected)
PokeRG Route 20 V2 Corrected.png
Final Map
PokeRG Route 20 Final.png

The bollard formations are much more varied, Cinnabar Island's coastline properly extends into the map with an actual beach and a pier, and in lieu of the Seafoam Islands, stands what appears to be a lighthouse. The latter aspect could be supported by the Pokémon Tower tileset featuring what resembles a light fixture, and by Gold and Silver later reworking the idea of a lighthouse dungeon.

Cinnabar Island

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Cinnabar Island V2.png PokeRG Cinnabar Island V2 Corrected.png PokeRG Cinnabar Island Final.png

The general layout is there, but features more houses, more signs, and more land overall. The entrance to what is likely the Pokémon Mansion is also blocked by cuttable trees, which would be fitting seeing how it is an abandoned building, but likely changed as when the player exits the mansion, they would be standing on top of one of the trees.

Route 21

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 21 V2.png PokeRG Route 21 V2 Corrected.png PokeRG Route 21 Final.png

Features a beach, as well as a house on a small island, both elements that are nowhere to be seen on the final map. The tall grass patch near Pallet Town is also missing.

Route 22

Early Map (Original)
PokeRG Route 22 V2.png
Early Map (Corrected)
PokeRG Route 22 V2 Corrected.png
Final Map
PokeRG Route 22 Final.png

The general layout is there, but the pond is larger, and there is less tall grass.

Route 23

Early Map (Original) Early Map (Corrected) Final Map
PokeRG Route 23 V2.png PokeRG Route 23 V2 Corrected.png PokeRG Route 23 Final.png

Is a rather boring straight road, only featuring a central pond with two islands on it, and once again lacking Victory Road in any shape or form. The idea of decorative walls is already present, albeit in a rather crude form. This map and Indigo Plateau would be given a unique tileset to allow for a lot more freedom with the decor.

Indigo Plateau

Early Map (Original)

NTOWN_10.DAT

Early Map (Corrected) Final Map

POKECEN.MAP

PokeRG Indigo Plateau V2.png PokeRG Indigo Plateau V2 Corrected.png PokeRG Indigo Plateau Final.png

Resembles its Gold and Silver counterpart more than its original Red and Green one. Features an additional house on the side that is not present in the final games, perhaps the entrance to Victory Road, as it was absent from Route 23.

Saffron City

Early Map Corrected Early Map Final Map
PokeRG Saffron City V2.png PokeRG Saffron City V2 Corrected.png PokeRG Saffron City Final.png

Quite a different layout. Namely, what is clearly Silph Co. is represented as a large pile of bollards, which as seen in other places was used to represent incomplete structures. The "building" is way larger than the final one, and is surrounded by a moat, which in the end causes quite the imbalance with the rest of the area. The final version of the town ended up going with a less grandiose Silph Co., but filled up the newly available space with more buildings, giving the area the feeling of a large populated city.

Interiors

Player's House

Early Map

ROOM2F.DAT

Final Map

ROOM2F.MAP

PokeRG Players Bedroom.png Pokémon RBY Tileset 01 Original.png
Early Map

ROOM1F.DAT

Final Map

ROOM1F.MAP

PokeRG Player House Example Map.png PokeRG Players House Final.png

An early version of the player's house. Mostly identical to final aside from the bedroom being emptier, and the downstairs having more furniture. The PC and desk are also missing.

Prof. Oak's Lab

Early Map

SCHOOL.MAP

Final Map

OHKIDO.MAP

PokeRG Oak Lab.png PokeRG Oak Lab Final.png

Visually identical to final aside from the tileset difference. Interestingly, while the internal tileset name and map name don't specify who the school belongs to, many of the script files contain a common function to handle blacking out after a lost battle. A comment in this function reads "to okido school(losing)". While this may seem odd at first, considering that the unused Prof. Oak Trainer class refers to him as a teacher in the Japanese script, it makes much more sense.

Burglarized Home

Early Map

ARASARE.MAP

Final Map

MINKA_C.MAP

PokeRG Trashed House.png PokeRG Trashed House Final.png

The burglarized house in Cerulean City is identical to final, aside from lacking one of its potted plants, its entrance mat, windows, and having differently arranged debris. For whatever reason, the map width and height are both one block larger than the final version, but the extra space isn't used for anything.

Fighting Dojo

Early Map

DOJO.MAP

Early NPC Data

T0TR0201.SXY

Final Map

DONATA.MAP

Final NPC Data

T11R0201.SXY

PokeRG Fighting Dojo.png
PokeRG Fighting Dojo NPC.png
PokeRG Fighting Dojo Final.png
PokeRG Fighting Dojo Final NPC.png

An early iteration of the Fighting Dojo, being shorter, with a unique floor design, and containing a Buddha statue. This map also has some incorrect tiling. The Poké Balls are missing entirely, there is no sign data for the scrolls, and there is only one NPC here, likely the Karate Master. Regardless, that NPC is not programmed as a trainer, and it uses the original sprite for the Blackbelt class. The warp data, meanwhile is identical to final, aside from being placed two tiles higher.

Garden

PokeRG Garden.png

A scrapped map only referred to as NIWA.MAP. Likely a test map of sorts to see how decorative maps could be built.

Cage

Map

ORI.MAP

NPC Data

T08R1201.SXY

PokeRG Fuchsia Cage.png PokeRG Fuchsia Cage NPC.png

A map which, according to its script data, would have been found in Fuchsia City. This could then mean that the zoo outside the Safari Zone started out as a series of indoor displays. Corresponding NPC data tells us that a standard male NPC would have been found there, spinning around in one spot. This NPC would likely tell us about the Pokémon found behind the glass, though no such Pokémon is actually present here.

There is also sign data defined for this map, but it is found out of bounds, at X:2 - Y:14. The exit warp leads to the previous exterior map, likely Fuchsia in this case, at warp 12. This map was later overwritten by the Fishing Guru's house in Vermilion City.

Old Man

PokeRG Gambler.png

A cut map interior which is only known internally as JISAN.MAP, literally "Old Man". While this name is quite vague, as it turns out, the house atop the Celadon Mansion is known internally as "Grandpa's House" (お見通しじいさんの小屋). Perhaps there was once an arcade of sorts atop Game Freak's headquarters?

House Type 4

PokeRG Room Type 4.png

House types 1 through 3 are used, leaving MINKA_D.MAP a scrapped room which simply consists of a table with a row of bookshelves. Nothing more, nothing less.

Rest House Type 2

PokemonRG UnusedSafariZoneRestHouse.png

SKOYA_2.MAP is a scrapped room type with a counter and some chairs. SKOYA_1.MAP is the map for the Safari Zone rest houses, so this was likely a scrapped second variant.

Broken Room

Map (Original) Map (Corrected)
PokeRG Test Map.png
PokeRG Test Map Corrected.png

Found under TRAINING.MAP is a rather odd elongated map, which at first glance doesn't look right regardless of what tileset is assigned to it (the overworld tileset is used here as an example). Likely suffered from incorrect parameters, as removing the last few blocks (which are 00) reveals that this map perfectly fits the standard 4x4 room dimension. This map may actually be the original Inn/Pokémon Center interior, as using the corrected V2 Inn blockset actually matches pretty well with the layout seen here. However, it appears that some of the blocks were shifted around, and as such reconstructions of the original layout (using the pointers from the final blockset for clarity's sake) will be provided below:

Layout V2 Blockset (V2 Tileset) V2 Blockset (Final Tileset)
Original Arrangement

03 00 01 02
07 04 05 06
08 08 08 08
08 09 0A 08

PokeRG Test Map V2 Original Arrangement.png
PokeRG Test Map Final Original Arrangement.png
Possible Arrangement

0E 10 01 02
07 04 05 06
03 03 03 03
03 0A 0B 03

PokeRG Test Map V2 Possible Arrangement.png
PokeRG Test Map Final Possible Arrangement.png

Pokémon Gyms

Map
PokeRG Gym 1.png
PokeRG Gym 2.png
PokeRG Gym 3.png
PokeRG Gym 4.png
Gym 1 (DOJO_01.MAP) Gym 2 (DOJO_02.MAP) Gym 3 (DOJO_03.MAP) Gym 4 (DOJO_04.MAP)
PokeRG Gym 5.png
PokeRG Gym 6.png
PokeRG Gym 7.png
PokeRG Gym 8.png
Gym 5 (DOJO_05.MAP) Gym 6 (DOJO_06.MAP) Gym 7 (DOJO_07.MAP) Gym 8 (DOJO_08.MAP)

Incredibly early iterations for the different Gyms. The Viridian and Pewter Gyms have identical maps, which appear to have served as something of a template design. Interestingly, Fuchsia's and Cinnabar's appear to have been swapped around (with the doors going to Blaine, and Koga instead getting the invisible walls).


PokeRG Gym Placeholder NPC.png

Corresponding early script data exists for this map, found under T08R0901.SXY. The NPC layout consists of a Game Boy kid, four Cooltrainers, the Gym Coach, a Youngster and his Pokémon serving as the Gym Leader, as well as two "Judges". The latter would have likely opened the door to let you confront the Leader once all the other trainers had been defeated. This NPC type was probably scrapped due to being redundant, with its sprite ID later overwritten by Lance.

Despite undoubtedly being a Gym, none of the NPCs here are actually set to behave as trainers. As for the entrance mats, here they are set to warp ID 9 (the final Fuchsia gym instead using warp 6). A nearly identical NPC arrangement exists for Saffron City in T0TR0301.SXY. While largely the same as Fuchsia's, proper door sprites were added, as well as the exit leading to warp 2, the same as in the final Saffron Gym. Both scripts also have sign data for the sign by the counter.


PokeRG Boss Gym.png

To finish with the Gyms, another map included in the leak, this one known simply as "BOSSDOJO.MAP". The internal name for Giovanni's overworld sprite is "Boss", so this was definitely intended for him, meaning that while the latter was likely not a Gym Leader, he still had his own unofficial Gym/lair.

Underground Path 5-6

Early Map

DGN04.MAP

Final Map

NUKE5_6.MAP

PokeRG Underground Path 5-6.png
PokeRG Underground Path 5-6 Final.png

Identical to final, aside from having an extra straircase, though it's unclear where those stairs would have lead to. Perhaps when the Underground Path 5--7 was scrapped this warp was added to take the player to the now orphaned Route 7 entrance, only to ultimately scrap it altogether. The map row which featured the stairs was removed entirely in the final games, causing a graphical issue at the bottom of the map due to its height not being updated.

(Source: pokered disassembly)

Underground Path 5-7

PokeRG Underground Path 5-7.png

A scrapped secondary Underground Path, found under DGN05.MAP which would have connected Route 5 to Route 7, with its gate entrance visible in early iterations of both routes. The final games ultimately replaced this area with a secondary underground path connecting Routes 7 and 8 (DGN06.MAP).

Dungeons

Rocket Hideout

Three cut maps which were part of Team Rocket's Hideout in Celadon City. It's then possible that the hideout once featured "rooms" on separate maps, not unlike how the S.S. Anne handles its cabins. Remnants of these maps still remain in the final game.

Pokémon Tower

Early Map (Original)

TOWER1F.MAP through TOWER7F.MAP

Early Map (Corrected) Final Map

NT_1F.MAP through NT_7F.MAP

1F
PokeRG Pokemon Tower 1F V1.png
Pokemon Tower 1F V1 Corrected.png
PokeRG Pokémon Tower 1F Final.png
2F
PokeRG Pokemon Tower 2F V1.png
Pokemon Tower 2F V1 Corrected.png
PokeRG Pokémon Tower 2F Final.png
3F
PokeRG Pokemon Tower 3F V1.png
Pokemon Tower 3F V1 Corrected.png
PokeRG Pokémon Tower 3F Final.png
4F
PokeRG Pokemon Tower 4F V1.png
Pokemon Tower 4F V1 Corrected.png
PokeRG Pokémon Tower 4F Final.png
5F
PokeRG Pokemon Tower 5F V1.png
Pokemon Tower 5F V1 Corrected.png
PokeRG Pokémon Tower 5F Final.png
6F
PokeRG Pokemon Tower 6F V1.png
Pokemon Tower 6F V1 Corrected.png
PokeRG Pokémon Tower 6F Final.png
7F
PokeRG Pokemon Tower 7F V1.png
PokeRG Pokémon Tower 7F V1 Corrected.png
PokeRG Pokémon Tower 7F Final.png

The Pokémon Tower here features much larger maps, and uses an earlier version of the blockset. Floors 3 and 4, interestingly enough, are copies of floor 2, which causes some inconsistencies when it comes to the ascending and descending stairs.

PokeRG Pokémon Tower Elevator.png

As seen on the other early Pokémon Tower maps, an elevator was once present in the building. NT_EL.MAP represents a midpoint in design: it shows that the elevator stuck around even after the layout of the tower was redesigned, and was even given its own map file, which it didn't have in the earlier iteration. It even has its own event file, T05R0208.SXY, with the exit containing warps to the base floor, warp IDs 4 and 5. It was ultimately scrapped, and Mr. Fuji simply warps you to the Pokémon House once you rescue him.

Seafoam Islands

PokeRG Seafoam Island B5F.png

MDUN_6.MAP, a scrapped floor for the Seafoam Islands, which makes it "B5F". Likely the original map containing Articuno, before being placed in B4F instead.


Mock-Up Final Map
PokeRG Seafoam Island B4F Mock Up.png
PokeRG Seafoam Island B4F Final.png

Interestingly, the position of the ladder leading to this scrapped area matches with the fourth basement's lone island, which in the final games is where Articuno was ultimately moved.

Cerulean Cave

Early Map

TORI_1F.MAP / TORI_B1.MAP / TORI_B2.MAP

Final Map

END01.MAP / END02.MAP / END03.MAP

1F
PokeRG Cerulean Cave 1F.png
1F
PokeRG Cerulean Dungeon 1F Final.png
B1F
PokeRG Cerulean Cave B1F.png
2F
PokeRG Cerulean Dungeon 2F Final.png
B2F
PokeRG Cerulean Cave B2F.png
B1F
PokeRG Cerulean Dungeon B1F Final.png

Cerulean Cave, also known as the "Unknown Dungeon", once sported a radically different design which made use of what later became the Safari Zone tileset. In the map header of the script files for Cerulean Cave's floors, the name of the "Map data address" is identical to these early maps, confirming that this is the original iteration of this dungeon. Moreover, not only is each floor's layout completely different, but so is their ordering. Even the legendary Pokémon found here is different, with early encounter rates informing us that Moltres once roosted there, instead of in Victory Road.

Something interesting can be found in the script file for Cerulean Cave 1F, T04R0701.DMG. In this file, there is an additional comment reading "Thunder Live Dungeon". "Thunder" is the Japanese name for Zapdos, which likely meant that once Moltres was relocated, Zapdos was next in line to fill the role of the resident legendary bird.

Victory Road

Early Map

DGN02.MAP

Final Map

IWA_2F.MAP

PokeRG Victory Road 3F.png PokeRG Victory Road 3F Final.png

The original design for Victory Road 3F, which also seems to make use of an early iteration of the cave blockset. Much of the rubble was removed, a switch was moved across the room, the two holes were removed, blocks where Strength boulders could be pushed were marked, an ascending ladder was added, and so was a pressure switch. Incidentally, the Gold and Silver version of this map actually included a hole in just about the same area as seen in this early map.

Moltres Dungeon

PokeRG Moltres Dungeon.png

A scrapped map only referred to as "FIRE_DUN.MAP" internally. Likely a placeholder map thrown together prior to Moltres being moved to Victory Road. In the final games, Moltres lacks its own room. This map also uses an unused cave blockset, which allows for the nicer looking entrance seen here.

Silph 2

Map
PokeRG Silph 2 1F.png
PokeRG Silph 2 2F.png
PokeRG Silph 2 3F.png
PokeRG Silph 2 4F.png
Floor 1 Floor 2 Floor 3 Floor 4

It appears that Silph Co. was so great Game Freak just couldn't resist making a second one! This secondary area would have been accessible via an extra staircase in the Silph Co. lobby, and consisted of a gauntlet where the player would have to defeat Trainers as they ascend. Thankfully, while no map can be found for these floors in the leaks, we do have their corresponding script files. A such, the maps provided above are mock-ups.

All of the Trainers here use the first roster of their Trainer class, definitely as a placeholder, as it creates some serious whiplash in difficulty progression as-is. NPC data exists in D10R0201.SXY through D10R0204.SXY, from 1F to 4F. The Trainers are, in order from left to right:

Floor 1: Bug Catcher, Youngster, Lass, Misty, Super Nerd, Brock, Jr. Trainer♂, Jr. Trainer♀.

Floor 2: Channeler, Gambler, Erika, Gentleman, Hiker, Lt. Surge, Sailor, Fisherman.

Floor 3: Pokémaniac, Engineer, Rocket, Silph Chief, Biker, Koga, Scientist, Jack.

Floor 4: Beauty, Rocker, Blaine, Swimmer, Cue Ball, Sabrina, Burglar, Bird Keeper.


Some interesting things to note about the Trainers:

  • Brock uses the Youngster sprite, instead of the Super Nerd sprite, possibly reflecting his earlier design.
  • The Jr. Trainers have their sprites mixed up.
  • The Channeler, Engineer, Burglar, and Scientist all use otherwise unused rosters for their respective Trainer classes.
  • The Hiker doesn't use the "burly man" sprite, but rather uses the sprite that would be given to them in Generation 2.
  • Koga uses the Cooltrainer ♂ sprite, rather than his unique final sprite.
  • Blaine uses the "Gambler" old man sprite, rather than his final sprite.
  • While the Cue Ball on floor 4 was given a different sprite to fit being indoors, the Biker on floor 3 was not.


Interestingly, the stairs to the back of the first floor are set to take you to T11R0611, a map which doesn't actually exist. Its name closely resembles T11R0601, which is Silph Co. 1F, whereas the final elevator map is D10R0111, suggesting that this map was renamed at some point. While no data for a fifth floor is known to exist, the fourth floor's warps refer to it, so it would have likely consisted of the remaining trainer classes, as such the Blackbelt, Juggler, Psychic, Giovanni, Tamer, Cooltrainer♂, Cooltrainer♀, and either the Rival or Professor Oak. The sixth floor, meanwhile, has wild encounter data which includes none other than Mewtwo, meaning that this is where it would have originally been found before it was ultimately moved to Cerulean Cave. Remnants of all six maps remain in the final games.

Pokémon League HQ

Map File Name Notes
PokeRG Silph League 1F.png SILF_B1.MAP

D14R0101.SXY

*The first floor has Viridian Forest's rates, but looks closer to the Safari Zone.
*The door to Lorelei's room in the Pokémon League lobby once lead here.
*The first Trainer is unused Cooltrainer♂ roster 4.
*The second Trainer is unused Cooltrainer♀ roster 4.
*The itemball contains TM17 Submission.
*The music header labels this map as "tokiwa no mori" (Viridian Forest).
*The border block is set to 02 (large tree block).
PokeRG Silph League 2F.png SILF_B2.MAP

D14R0102.SXY

*The second floor is based after Mt. Moon.
*The itemball contains a Max Potion.
*The music header labels this map as "otsukimiyama" (Mt. Moon).
*The border block is set to 02 (large boulder block).
PokeRG Silph League 3F.png

PokeRG Silph League B3F Cabin Type B.png PokeRG Silph League B3F Cabin Type A.png

SILF_B3.MAP

SILF_B3A.MAP

SILF_B3B.MAP

D14R0103.SXY

D14R0110.SXY

D14R0111.SXY

D14R0112.SXY

D14R0113.SXY

*The third floor is based after the S.S. Anne, with four cabins.
*To advance, the player would have to find the right door, at the risk of fighting a Trainer. Only the fourth and farthest door would lead to progress.
*The Trainers include unused Cooltrainer♂ roster 8, unused Gentleman roster 4, and unused Cooltrainer♀ roster 8. Regardless of the choice, each room holds an itemball (a Full Heal, Protein, Guard Spec., and a Hyper Potion respectively).
*The itemball outside contains TM43 Sky Attack.
*As the S.S Anne normally does not have any wild Pokémon encounters, the ones on the main floor are completely original.
*The music header labels this map as "santoannu" (S.S. Anne).
*The border blocks are all set to 0C (black void block).
/ SILF_B4.MAP

D14R0104.SXY

*The map/script for this floor is lost, as it was overwritten by Victory Road 1F.
*The wild encounters show that this floor was based after the Rock Tunnel.
*The music header labels this map as "iwayama doukutsu" (Rock Cave).

Interestingly, the Victory Road 2F and 3F maps are known in the source code as IWA_1F.MAP and IWA_2F.MAP, with the Rock Tunnel maps known as NEWIWA1.MAP and NEWIWA2.MAP. This seemingly reveals that the Victory Road maps were originally intended for Rock Tunnel.

PokeRG Silph League 5F.png SILF_B5.MAP

D14R0105.SXY

*The fifth floor is based on Pokémon Tower.
*No trainers here, only two itemballs.
*They contain a Full Restore and TM10 Double-Edge respectively.
*The music header labels this map as "pokemon tower".
*The border block is set to 02 (full square block).
PokeRG Silph League 6F.png SILF_B6.MAP

D14R0106.SXY

*The sixth floor is based on the Rocket Hideout, with a spinning tile puzzle.
*Two itemballs here: a Max Potion near the top, and a Revive near the bottom.
*The music header labels this map as "rocket dan" (Team Rocket).
*The border block is set to 35 (full square block).
PokeRG Silph League 7F.png SILF_B7.MAP

D14R0107.SXY

*The seventh floor is based on the Safari Zone, featuring a lot of statues.
*The Trainer here has a behavior not seen anywhere in the final Generation 1 games: turning around. This Trainer is unused Tamer roster 6.
*The itemball contains an Escape Rope, which indicates that there was nothing locking you out from using one in this dungeon.
*A Hidden Max Elixer is located on the bottom left corner of the large tree.
*The music header labels this map as "safari".
*The border block is set to 02 (large tree block).
PokeRG Silph League 8F.png SILF_B8.MAP

D14R0108.SXY

*The eighth floor is based on the Pokémon Mansion, with a touch of Silph Co.
*The wild encounters do however parallel the early Pokémon Mansion rates.
*The female Trainer is unused Cooltrainer♀ roster 7.
*Likewise the male Trainer is unused Cooltrainer♂ roster 7.
*The itemball to the left of the room, near the table, contains a Max Revive, and the other one contains an HP Up.
*The music header labels this map as "biru" (Building).
*The border block is set to 01 (gray void block).
PokeRG Silph League 9F.png LASTBOSS.MAP

D14R1414.SXY

The ninth and final map, which is identical to Lance's room.
*The script data reveals that the player would have to battle the Elite Four members back to back, before facing the Champion.
*Blue was ultimately moved to a separate map, and here always uses roster 1, regardless of the starter Pokémon chosen, likely as a placeholder.
*The warp data is interesting, the Hall of Fame warps being missing, and the entrance to this room being found at X:4 - Y:18, instead of X:10 – Y:18.
*This likely reflects an earlier iteration of this map. There is also sign data for this map, though its placement is odd, being found right below Agatha.

While it doesn't follow the typical naming conventions, the script file suggests the map's filename was changed. It used to follow the naming scheme of the previous floors, SILF_B9. The border block is set to 03 (black void block).

The Pokémon League is shown as having a dungeon consisting of several basement floors which, as denoted by their designs and wild encounter data, are based after dungeons found earlier in the game. Bizarrely, most of the maps have file names that suggest they were basement floors of Silph Co., but the map table file has them in a section clearly meant for the League HQ building, and Silph's maps are completely separate. All of these maps have remnants in the final game.

Miscellaneous

A handful of maps made some time closer to the games' release.

Indigo Plateau

Early Map (Original)

NTOWN_10.MAP

Early Map (Corrected) Final Map

POKECEN.MAP

PokeRG Indigo Plateau V3.png PokeRG Indigo Plateau V3 Corrected.png PokeRG Indigo Plateau Final.png

A later iteration of the early Indigo Plateau map, still using the tower design and lacking its unique tileset. While the blockset is visibly closer to final, the pond block oddity is still here.

Gatehouse

Early

T09R0601.SXY

Final

R02R0501.SXY

PokeRG Gatehouse NPC.png
PokeRG Gatehouse NPC Final.png

A surprisingly interesting script, which is listed as a location on Cinnabar Island ("Town 9"). This map likely made use of the original gate house blockset. This is supported by there only being entrance mat data, which suggests that the door in the back was a later addition. The aforementioned warp data is set to take you to warp 6 of the previous exterior map, with the final Cinnabar Island only having five warps funnily enough.

The NPC data, meanwhile, is similar to the gate house leading to Viridian Forest, though with an extra NPC. Here, the two female NPCs only face down, while the Fishing Guru is set to spin around randomly. Lastly, this map's border block differs from the regular forest gates, using block 0F instead of block 0A, with the former not looking right, even when looking at the early gatehouse blockset.

Burglarized House

Early

T04R0102.SXY

Final

T04R0101.SXY

PokeRG Trashed House NPC.png
PokeRG Trashed House NPC Final.png

An early version of the burglarized house in Cerulean City. The two owners are missing, and the Rocket Grunt is inside the home instead of hiding in the backyard. This Grunt is also spinning around randomly, though this one is assigned the first team ID of the Rocket Grunt class, instead of the fifth.

Otherwise, the flavor text for the hole in the wall ("TEAM ROCKET left a way out!") is missing entirely. As for the warp data, the hole one doesn't exist, and the entrance carpet data is at X:9 - Y:4 and X:9 - Y:5, instead of X:7 - Y:2 and X:7 – Y:3. This places the warps outside of the map's boundaries, though an early version of the house just so happens to be one block longer/wider (although that extra space just consists of empty void).

Lastly, for some reason the early warps here lead to… the final version of the burglarized house.

Fuchsia City Office

Early

T08R1001.SXY

Final

T08R0701.SXY

PokeRG Fuchsia Office NPC.png PokeRG Fuchsia Office NPC Final.png

An early version of Fuchsia City’s Safari Zone Office. The Warden was later moved to a different map, being replaced by another park employee. Moreover, all the NPCs here are all set to walk about randomly, instead of just sitting in one spot. The exit warps were also changed, ultimately from warp 10 to warp 7.

S.S. Anne Cabins

Early

D03R0111.SXY through D03R0124.SXY

Final

D03R0108.SXY through D03R0110.SXY

First Set
(1F)
PokeRG Cabins Set 1 NPC.png
PokeRG Cabins Set 1 NPC Final.png
Second Set
(2F)
PokeRG Cabins Set 2 NPC.png
PokeRG Cabins Set 2 NPC Final.png
Third Set
(B1F)
PokeRG Cabins Set 3 NPC.png
PokeRG Cabins Set 3 NPC Final.png

Early iterations of the S.S. Anne cabin scripts. The warp data is at the same X/Y coordinates for each cabin of a given set, which suggests that while grouped together in the final games, originally each cabin was an individual map (though for simplicity's sake the data will be laid out like the final games). Only the last three cabins are accounted for on the first floor, but as seen with the warp IDs (5, 6, and 7), this is definitely due to the first three (2, 3, and 4) having been overwritten by the finalized cabin set scripts. The first floor has repositioned NPCs, with the little girl having a monstrous Pokémon as opposed to a cute one. The second floor is mainly identical, with NPCs shifted around and a missing old man. The basement, meanwhile, lacks the Machop, and has a middle-aged NPC in lieu of the Fisherman trainer. The grouping of the maps in the final games was likely done to save space, as at one point, the S.S. Anne had a whopping 14 cabin scripts dedicated to it, as opposed to just three.


The following objects also have different attributes:

  • First Set:
    • The middle-aged man wanders around instead of spinning in one spot.
    • The little girl and her Pokémon both spin around, instead of just facing down.
    • The itemball contains a Paralyz Heal instead of TM08.
    • The Youngster trainer is assigned roster 06, instead of 08.
    • The Lass trainer is mistakenly assigned the Youngster class, and her roster is 02 instead of 0B.
    • The Gentleman NPC spins around instead of walking around.
  • Second Set:
    • The first two Gentleman NPCs walk around instead of facing down.
    • The first itemball contains a Carbos instead of a Max Ether.
    • The Gentleman trainer is assigned roster 04, instead of 05.
    • The Lass trainer is assigned roster 03, instead of 0C.
    • The third Gentleman NPC spins around instead of facing down.
    • The two female NPCs spin around instead of facing in a given direction.
  • Third Set:
    • The Super Nerd NPC walks around instead of facing right.
    • The first itemball contains an Iron instead of TM44. The other two itemballs are not properly defined, and thus don't contain anything.
    • Only one Sailor is finalized, the next two use roster 01 as a placeholder, and the last two are defined as NPCs and not trainers.
    • The Fisherman trainer is a spinning middle-aged NPC. Above the latter's sprite label is a commented-out Cooltrainer♂ label, suggesting an even earlier sprite change.

Victory Road

2F

Early

R23R0201.SXY

PokeRG Victory Road 2F NPC V2.png
Later

D23R0101.SXY

PokeRG Victory Road 2F NPC V3.png
Final

R23R0101.SXY

PokeRG Victory Road 2F NPC Final.png

Two early iterations of Victory Road 2F's script. The first version here has a rather different layout, namely lacking Moltres, with an extra boulder in its place. The border block also differs, using block 02 instead of block 7D. A few of the Trainers are set to turn around: something none of the Trainers in the final Generation 1 games do. Moreover, all trainers here use the first roster of their trainer class as a placeholder. As it turns out, the second Juggler (the one by the stairs, then the itemball) started off as a Jack.

There is also a good amount of differences relating to the warps: the warp to the first floor is instead an exit to Route 23, which makes sense as the "Victory Road 1F" originally didn't exist. The warp normally blocked behind the Strength switch is also at Y coordinate 0B instead of 19. Interestingly, this matches better with the third floor's ladder plan, with that particular one more to the right of the exit ladder, instead of to the left. There are also three extra warps that were removed in the final, the first later converted as the 3F ladder leading to Moltres. Their placement matches DGN02.MAP, and seem to suggest they were either once necessary for the falling holes to function, or just to mark where the player should land after dropping down one. The third floor's hole also takes you to a different spot here, with its coordinates being X:0E - Y:17 instead of X:10 – Y:16, which is likely a mistake as it is placed right inside a Strength boulder.


The second version likely only exists as a result of a typo, as absolutely nothing else even hints to the existence of a "D23". Essentially finalized, aside from the Blackbelt and Juggler being in different spots. The itemball containing TM17 Submission contains a Hyper Potion in both of these early iterations.

3F

Early

D08R0102.SXY

Final

D08R0101.SXY

PokemonRG VictoryRoad3FEarly.png PokemonRG VictoryRoad3FFinal.png

Early NPC event data for Victory Road's third floor. Bizarrely, the warps take you to the final version of this map. Otherwise identical to final, aside from the position of some trainers, and the contents of one of the itemballs changing from a Rare Candy to a Max Revive.


Saffron City

Early

TOWN11NO.SXY

Final

TOWN11.SXY

PokeRG Saffron City NPC.png PokeRG Saffron City NPC Final.png

An unusual, alternate version of Saffron City's script file. All the signs and NPCs are there, but not necessarily in their final spots. Interestingly, the Scientist and one of the Rockets are clearly placed inside a building, suggesting that this script is from a slightly earlier iteration of the map. The following NPCs also have different attributes:

  • The Scientist went from spinning around to walking randomly.
  • The Gentleman went from spinning around to facing down.
  • The Pidgeot went from spinning around to facing down.
  • The "Juggler" went from walking left/right to facing up.


Compared to the final map, this one also has happens to have two extra warps to Silph Co. 1F, but their placements seem completely arbitrary.

Copycat's House

An early version exists in T0TR0101.SXY. It is devoid of any NPCs, and only has exit warps, lacking a second floor entirely.

Silph Co. 1F

Early

T0TR0601.SXY

Final

T11R0601.SXY

PokeRG Silph Co 1F NPC Early.png PokeRG Silph Co 1F NPC Final.png

An early version of Silph Co. 1F's event data exists in T0TR0601.SXY. The main difference lies within the warp data. Two extra entrance warps are present, suggesting that Silph Co. once had two entrances, not unlike the Celadon Dept. Store. Moreover, here, an extra warp is present by the 2F stairs that would take you to Silph 2 1F, which was obviously removed when that dungeon got scrapped. There is also sign data for this map, though for some reason it is found in the exact same spot as the elevator. The "secretary", meanwhile, is in the same spot, but she's set to spin around in one spot, instead of only facing down.

Still on the topic of Silph Co., there exists a script file under D10R0112.SXY which describes the event data for a map that was later cut. All that can be gleaned from it is that it contained warp data at X:7 - Y:7, with it leading to the second warp of Silph Co. 11F.

Saffron Poké Mart

Early

T0TR0501.SXY

Final

T11R0501.SXY

PokeRG Saffron Mart NPC.png
PokeRG Saffron Mart NPC Final.png

An earlier version of Saffron City's Poké Mart, which in the final games changed the old man to a young man, and the young man to a Lass.

Saffron Pokémon Center

Early

T0TR0701.SXY

Final

T11R0701.SXY

PokeRG Saffron Center NPC.png PokeRG Saffron Center NPC Final.png

An earlier version of Saffron City's Pokémon Center script, matching the final one aside from the missing Cable Club attendant, and the Gentleman being shifted more to the right.


(Source: HelixChamber - Main Research, FrenchOrange / 8SomaCruzes - Additional research.)