Half-Life 2: Episode Two

Half-Life 2: Episode Two
Developers: Valve, EA UK (PS3) Publishers: Valve, CyberFront (JP), Electronic Arts (EU) Platforms: Windows, Xbox 360, PlayStation 3, Mac OS X, Linux Released in JP: April 4, 2008 Released in US: October 10, 2007 (Windows), May 26, 2010 (Mac), June 27, 2013 (Linux) Released in EU: April 11, 2008 (Windows), May 26, 2010 (Mac) This game has unused animations. This game has unused areas. This game has unused code. This game has uncompiled source code. This game has unused graphics. This game has unused models. This game has unused items. This game has debugging material. This game has a development article This game has a prototype article

Half-Life 2: Episode Two is the third part of the yet-unfinished adventure of Gordon Freeman where Eli Vance prepared for "Unforeseen Consequences".

As of 16 November 2024, Half-Life 2: Episode Two has been merged into base HL2 as part of the 20th Anniversary update, with its Steam store listing now removed.

To do: Prototype Particles!

Sub-Pages

Development Info

Prototype Info

Unused Models Tons and tons of unused models!

Unused Textures

Unused Chapter VGUI Icons

Chapter 8. This is early Photoshop work on an image of an early version of ep2_outland_12a as seen from the HUD on the bottom-left corner and an extra Alyx, hence why only concept exists here.

ep2_intro.bsp was supposed to be loaded into the game, but it never appeared for nine years, then later got leaked on the Facepunch forums and quickly taken down.

Both of them can be seen if you create a chapter0.cfg and/or chapter8.cfg in the ep2/cfg folder.

devtest.png

An overview of a removed map called devtest can be found. This map and other devtest maps were found in the NVidia Shield versions of Half-Life 2 and its episodes.

Early Magnusson

What appears to be an early rendition of Magnusson that can be found under "effects/magmonitor_idle" and "effects/magmonitor_talk".

Jalopy

A vehicle seen in the gameplay demos, but didn't make it to the retail and was replaced with the Muscle Car. The vehicle resembles the Scout Car from Half-Life 2. The texture and handling files for the Jalopy remain in the retail game's files. There are modifications online to restore this car, but the majority of them involves it replacing the Muscle Car.

Juvenile Advisor

The Barn Advisor originally started life as a Juvenile Advisor. The model seen to the right has been leaked a few times, but it doesn't exist in Episode Two by default. The texture does, however. On Christmas of 2022 the sources for the Juvenile Advisor amongst other model and material sources have leaked. The leaked model shows that the Juvenile Advisor indeed was supposed to appear in the barn segment of the game, however was scrapped for unknown reasons. The model has all animations intact, as shown in this video.

Debug textures

There exist two textures for debugging purposes: a mesh and a plain white texture.

Unused Overlays

Filename	Image	Notes
bloodpool1.vtf
bloodpool2.vtf
bloodpool4.vtf
concreteartifacts01b.vtf
it_poster013.vtf
rationpapers01.vtf		Day of Defeat: Source leftover.
rationpapers03.vtf		Ditto.
rationpapers04.vtf		Ditto.
reedmat001.vtf
roundwindowdecal01.vtf
sign_cossacktransport_02.vtf		(Russian) Cossack's passage
sign_ironorecorp_03.vtf		(Russian) Corporation
sign_northernlogging_01.vtf		(Russian) Northern magazine
sign_shipping_01.vtf		(Russian) Transcontinental
sign_shipping_03.vtf		(Russian) Transcontinental
sign_silo_cluster01.vtf		(Russian) Point of contact Warehouse Emergency exit Mine Engine room Pumping station Storage room Emergency bunker
sign_silo_temp03.vtf
sign_subarctictransport_01.vtf		(Russian) Cossack's subarctic
sign_subarctictransport_03.vtf		(Russian) Cossack's C
sign_victorymine_04.vtf		(Russian) Victory Mine named after the 50th anniversary
whiteforestlogo.vtf

Unused Signs

Some signs related to a test of sorts. The "Particle Benchmark" sign refers to the Source Particle Benchmark prototype.

Unused Particles

Combine Advisor Unused Particle Shield

Found as "advisor_psychic_shield", this unused shield uses the Particle system shown in the Benchmark, but the file is found in the retail version.

bik_test

A video testing particles is found under ep2\materials\particle.

Unused Combine Advisor Battle AI

This video shows unused Combine Advisor Battle AI, showing that Gordon was originally to fight one in Episode Two. The code for the AI is present in the Source SDK and can be re-enabled by changing a single line.

Unused Citadel Explosion Animations

There are various unused explosion animations for the Citadel that are never used in-game. It can be heard at the end of Episode One, but it can't be seen due to the Citadel being a simple skybox card, without animations. However it was seen in the unused map "ep2_intro.bsp", a modified version of the final cutscene in Episode One only with the Citadel explosion animation seen.

Proto1 Weapon

There exists a sample weapon never compiled in the Source Engine 2007 branch of Episode Two. The only remnants of the weapon are source code referring to it. The compiled version of the weapon itself looks like a .357 Magnum, but in reality is a laser bolt weapon. Changing this string of the weapon script below will look exactly like an AR2, the only difference being it acting like a laser bolt rifle.

"viewmodel"            "models/weapons/v_irifle.mdl"

Unused Text

ep2_english.txt

The unused chapters also have text that can be seen in-game via creating a chapter0.cfg and chapter8.cfg.

"ep2_Chapter0_Title"	"OUR STORY SO FAR..."
"ep2_Chapter8_Title"	""

As the only time this game-over message is shown is failing to defeat Dr. Breen at the end of Half-Life 2, this goes unused.

"HL2_GameOver_Timer"			"ALL IS DONE\nTHE FREEMAN'S FAILURE TO SEIZE A SWIFT VICTORY\nLEADS TO OUR TOTAL DEFEAT"

game_sounds_vehicles_ep2.txt

Many sound entries in game_sounds_vehicles_ep2.txt point to audio files that are missing from the sound/vehicles/junker directory.

"JNK_skid_lowfriction_short"
{
	"channel"		"CHAN_STATIC"
	"volume"		"0.6"
	"soundlevel"	"SNDLVL_80dB"
	"pitch"		"90,110"
	"rndwave"
	{
		"wave"		"vehicles/junker/skid_lowfriction_short1.wav"
		"wave"		"vehicles/junker/skid_lowfriction_short2.wav"
		"wave"		"vehicles/junker/skid_lowfriction_short3.wav"
	}
}

"JNK_skid_normalfriction_short"
{
	"channel"		"CHAN_STATIC"
	"volume"		"0.6"
	"soundlevel"	"SNDLVL_80dB"
	"pitch"		"90,110"
	"rndwave"
	{
		"wave"		"vehicles/junker/skid_lowfriction_short1.wav"
		"wave"		"vehicles/junker/skid_lowfriction_short2.wav"
		"wave"		"vehicles/junker/skid_lowfriction_short3.wav"
	}
}

"JNK_skid_highfriction_short"
{
	"channel"		"CHAN_STATIC"
	"volume"		"0.8"
	"soundlevel"	"SNDLVL_80dB"
	"pitch"		"90,110"
	"rndwave"
	{
		"wave"		"vehicles/junker/skid_highfriction_short1.wav"
		"wave"		"vehicles/junker/skid_highfriction_short2.wav"
		"wave"		"vehicles/junker/skid_highfriction_short3.wav"
		"wave"		"vehicles/junker/skid_highfriction_short4.wav"
		"wave"		"vehicles/junker/skid_highfriction_short5.wav"
	}
}

"JNK_suspension"
{
	"channel"		"CHAN_STATIC"
	"volume"		"0.25"
	"soundlevel"	"SNDLVL_80dB"
	"pitch"		"90,110"
	"rndwave"
	{
		"wave"		"vehicles/junker/suspension1.wav"
		"wave"		"vehicles/junker/suspension2.wav"
		"wave"		"vehicles/junker/suspension3.wav"
		"wave"		"vehicles/junker/suspension4.wav"
		"wave"		"vehicles/junker/suspension5.wav"
		"wave"		"vehicles/junker/suspension6.wav"
		"wave"		"vehicles/junker/suspension7.wav"
	}

"JNK_Radar_Ping_Enemy"
{
	"channel"		"CHAN_WEAPON"
	"volume"		"1.0"
	"soundlevel"		"SNDLVL_100dB"
	"pitch"			"100"

	"wave"		"vehicles/junker/radar_ping_enemy1.wav"
}