We have upgraded to the latest version of MediaWiki and now support TLS1.2 and transcoding!
Please contact us via Discord or Twitter if you experience any problems.

Half-Life: Alyx

From The Cutting Room Floor
Jump to navigation Jump to search

Title Screen

Half-Life: Alyx

Developer: Valve
Publisher: Valve
Platform: Windows
Released internationally: March 23, 2020


DevTextIcon.png This game has hidden development-related text.
EnemyIcon.png This game has unused enemies.
ObjectIcon.png This game has unused objects.
ModelsIcon.png This game has unused models.
DebugIcon.png This game has debugging material.


Cactus 2.0!
This article has just been started and needs the article basics added.
Help us out and add them.
Hmmm...
To do:
  • A lot left over from Half-Life 2 and its episodes. Personal files left by developers. Much more to be discovered.
  • An unused weapon: Tripmine.
  • Document the now patched-out content in the Day One release.
  • Document the unused content in the Mod Tools.

The long-awaited Half-Life: Alyx takes place roughly 5 years before the events of Half-Life 2: Episode Two, and is Valve's first major installment in Virtual Reality. It features the perspective of the series' very own Alyx Vance as she embarks on a journey to save the human race, deprived of a crowbar and forced to settle on a pair of lackluster Russells.

Unused Models

vr_alyxhealth

An early version of the health syringe.

HLA Vr alyxhealth.png

(Source: ecumber05)

combine_soldier_new_content and combine_recon

Broken versions of the combine soldier. They are rendered as red wireframes due to missing textures.

HLA Combine recon.png Combine soldier new content.png

(Source: Atticus6 Gaming, ecumber05)

inventory_template

An early version of the inventory selector. What's interesting is that there are 6 weapons in this early selector, with a crowbar as one of the options. In a developer interview with Valve, they explained that the crowbar was in the game at one point but was removed because players kept assuming they were Gordon Freeman. In the final game, the crowbar is not part of Alyx's arsenal, but is used at the end of the game. It is still fully functional and is used in numerous mods.

HLA Inventory template.png

(Source: ecumber05)

alyx_watch and grabbity_glove_model

Early versions of the gravity gloves. They are much more simplified compared to the final ones. The Gravity Gloves model was reused as an easter egg in Russell's lab in an inaccessible room next to where you pick up the Russells

HLA Alyx Watch.png HLA Grabbity glove model.png

holo_hacking_enemy

Judging by the name, it most likely would have been an enemy of some sort. It uses the same model as the leftover helicopter bomb.

HLA Helicopter bomb.png

(Source: ecumber05)

tiger_standee

A standee of a tiger. It was to be used in the zoo area.

HLA Tiger standee.png

(Source: ecumber05)

The Lab and Dota 2 Models

Multiple models from The Lab and Dota 2 are left over. This makes sense, as both games use the Source 2 engine, just like Half-Life Alyx.

Unused Entities

Hmmm...
To do:
Needs pictures.

Lots of unused entities are in the FGD, which is the definition of entities and functions that can be used in the Hammer editor.

item_hlvr_grenade_remote_sticky

A grenade that would stick to walls and could be detonated remotely. It also uses the helicopter bomb model.

(Source: ecumber05)

item_hlvr_weapon_grabbity_slingshot

An item for the Gravity gloves that would allow you to launch objects, similar to the original Gravity Gun.

(Source: ecumber05)

item_healthcharger_DEPRECATED

The old healthcharger from Half-Life 2. It has no model, but it still works fine.

(Source: Gordon Freakman)

item_hlvr_weapon_radio

A weapon that may have been the precursor to the headset used for communicating with Russel. Its model name is walkietalkie.vmdl, however it doesn't exist anymore.

item_hlvr_weaponmodule_rapidfire

This module that probably would have made weapons shoot rapidly.

HLA Module rapidfire.png

item_hlvr_weaponmodule_ricochet

A weapon module which most likely made bullet shots bounce off walls.

HLA Module ricochet.png

item_hlvr_weaponmodule_snark

A weapon module that may have been used to deploy snarks, like in Half-Life. It uses the same model as the snark in the beginning of the game.

item_hlvr_weaponmodule_guidedmissle_cluster

As the name suggests, this item may have launched guided missiles. It no longer has a model.

Unused Weapons

Tripmine

There is a version of the tripmine that can be placed on a wall by a player. It was created specifically to be used by the player because it will not spawn properly if placed on a wall in the editor. A video of it in action can be found here.

Half-Life 2 Leftovers

Many assets are left over from Half-Life 2, converted into the new formats that Source 2 uses.

Leftover Models

battery

The battery from Half-Life 2.

HLA Battery.png

classic

The classic zombie.

HLA Classic.png

combine_rifle_ammo01

Pulse ammo used by the Pulse Rifle.

HLA Combine rifle ammo01.png

crossbow_bolt

The crossbow bolt model that appears when you use the crossbow in Half-Life 2. Its textures are broken.

HLA Crossbow bolt.png

grenadeammo

Grenades.

HLA Grenadeammo.png

healthvial and healthkit

Health items from Half-Life 2.

HLA Healthvial.png HLA Healthkit.png

helicopter_bomb

The helicopter bomb dropped by the hunter-choppers.

HLA Helicopter bomb.png

player

Playermodel from Half-Life 2.

Player.png

(Source: Atticus6 Gaming)

Leftover Entities

Multiple entities from Half-Life 2 and other Source games are still included. They will still function, however they are mostly missing models and sounds. This list shows some leftover entities:

  • item_suit
  • npc_crabsynth
  • npc_cranedriver
  • npc_enemyfinder_combinecannon
  • npc_fastzombie_torso
  • npc_fisherman
  • npc_heli_avoidbox
  • npc_heli_avoidsphere
  • npc_heli_nobomb
  • npc_hunter_maker
  • npc_ichthyosaur
  • npc_kleiner
  • npc_launcher
  • npc_magnusson
  • npc_missiledefense
  • npc_monk
  • npc_mortarsynth
  • npc_mossman
  • npc_puppet
  • npc_rollermine
  • npc_seagull
  • npc_spotlight
  • npc_stalker
  • npc_turret_ground
  • weapon_alyxgun
  • weapon_annabelle
  • weapon_brickbat
  • weapon_striderbuster
  • weapon_stunstick


(Source: ecumber05)

Developer Tools

Hmmm...
To do:
Is the manifest still on the server? Did anyone make an (unmodified) backup?

An earlier manifest in the Half-Life: Alyx Steam depot was discovered to have developer tools used by Valve for debugging purposes. This manifest no longer exists on the server, however backups have been made.

No VR mode

There is a version of the engine DLL that allows the game to be run with the novr parameter, allowing the game to run without a VR headset. With a little bit of fixing, the game can be run on a standard display with mouse and keyboard controls. However, since the game was built from the ground up as a VR title, most of the VR functions will not function. This leaves the game impossible to complete via normal means. It was most likely meant to quickly test aspects of the game without having to put on a headset each time.

(Source: Valve News Network)

Half-Life 2 Weapons

In novr mode, it is possible to spawn all of the Half-Life 2 weapons. They were most likely ported to Source 2 to test interactions with the environment and enemies.

(Source: Valve News Network)

Personal Folders

There exist several folders scattered throughout the games files which are titled "Personal". These folders contain different developer's names and multiple "test" files, and may have been a designated area for developers to test their own content.

readonly_tools_asset_info.bin

Hmmm...
To do:
List all the unused content in this file.

A file called readonly_tools_asset_info.bin was discovered to have a plethora of data relating to files that had been removed from the game. It includes the names of each file, their path, and the size, however it doesn't contain the actual files themselves. A link to this file is below.

Download.png Download Half-Life: Alyx readonly_tools_asset_info.bin
File: HLA_Readonly_tools_asset_info.7z (3.5MB) (info)


Oddities

Headset Model Name

At the beginning of the game, a drone hands Alyx a headset and it tells her to put it on. Internally, this headset's model name is "commentary_node.vmdl".

(Source: ecumber05)

Health Syringe Parameter

One of the health syringe's parameters is "Physgun can ALWAYS pick up. No matter what." This is probably a leftover from even earlier in Half-Life 2's development, when the physgun still existed in the game.

(Source: ecumber05)

Unseen Melon

Since Half-Life 2, the developers have been placing melons in maps of the series. In Half-Life: Alyx, there is one melon in the game, although it is hidden and can't be seen via normal means. It was discovered by YouTuber MarphitimusBlackimus.

(Source: MarphitimusBlackimus)