Engine:Source

Source

Developers
Valve Corporation
First release date
1 June 2004
Predecessor
GoldSrc
Successor
Source 2

Game	Developer	Publisher	First release	Available on
Age of Chivalry	Team Chivalry		September 10, 2007
Alien Swarm	Valve Corporation		July 19, 2010
Alien Swarm: Reactive Drop	Reactive Drop Team		April 20, 2017
Anarchy Arcade	Elijah Newman-Gomez
Aperture Tag: The Paint Gun Testing Initiative	Aperture Tag Team		July 15, 2014
Apex Legends	Respawn Entertainment	Electronic Arts	February 4, 2019
Bear Party: Adventure	Klems		April 22, 2020
Black Mesa	Crowbar Collective		March 6, 2020
Blade Symphony	Puny Human		May 7, 2014
Bloody Good Time	Outerlight	Ubisoft	October 29, 2010
BrainBread 2	Reperio Studios		March 9, 2022
Consortium	Interdimensional Games		January 6, 2014
Contagion	Monochrome LLC		April 11, 2014
Counter-Strike Online 2	Nexon	Nexon, TianCity, Beanfun	November 28, 2013
Counter-Strike: Global Offensive	Valve Corporation, Hidden Path Entertainment		August 21, 2012
Counter-Strike: Source	Valve Corporation, Turtle Rock Studios, Hidden Path Entertainment		October 7, 2004
D.I.P.R.I.P. Warm Up	EXOR Studios		March 18, 2008
Dark Messiah of Might and Magic	Arkane Studios, Floodgate Entertainment, Kuju Entertainment	Ubisoft	October 24, 2006
Day of Defeat: Source	Valve Corporation		September 26, 2005
Day of Infamy	New World Interactive		March 23, 2017
Dear Esther	The Chinese Room		February 14, 2012
Dino D-Day	800 North, Digital Ranch		April 8, 2011
Divinia Chronicles: Relics of Gan-Ti	Team Monkey
Dota 2	Valve Corporation		July 9, 2013
Dystopia	Puny Human		September 10, 2005
E.Y.E: Divine Cybermancy	Streum On Studio		July 29, 2011
Empires	Empires		March 4, 2006
Entropy: Zero	Breadman		October 10, 2017
Estranged: Act I	Alan Edwardes		January 16, 2014
Fast Detect	Phosphorus Games		October 7, 2016
Firefight Reloaded	Bitl	Cobalt-57	November 5, 2015
Fistful of Frags	Fistful of Frags Team		May 9, 2014
Fortress Forever	Fortress Forever Development Team		September 13, 2007
G String	Eyaura	LunchHouse Software	October 16, 2020
Garry's Mod	Facepunch Studios	Valve Corporation	December 24, 2004
GoldenEye: Source	GESHL2 Team		February 7, 2009
Half-Life 2	Valve Corporation	Sierra Entertainment, Valve Corporation, 1C-SoftClub	November 16, 2004
Half-Life 2: Deathmatch	Valve Corporation		November 30, 2004
Half-Life 2: Episode One	Valve Corporation		June 1, 2006
Half-Life 2: Episode Two	Valve Corporation		October 9, 2007
Half-Life 2: Genry's Great Escape from City 13	Kirill Bulavintsev	Razgilday Production	June 23, 2020
Half-Life 2: Lost Coast	Valve Corporation		October 27, 2005
Half-Life 2: Year Long Alarm	Chuck Wilson		November 16, 2018
Half-Life Deathmatch: Source	Valve Corporation		May 1, 2006
Half-Life: Source	Valve Corporation		November 16, 2004
Hunt Down the Freeman	Royal Rudius Entertainment		February 24, 2018
INFRA	Loiste Interactive		January 15, 2016
Insurgency	New World Interactive		January 22, 2014
IOSoccer	IOSoccer Team
Jabroni Brawl: Episode 3	Team Jabroni
Kreedz Climbing	ObsessionSoft		June 15, 2017
Lambda Wars	Vortal Storm		December 5, 2014
Left 4 Dead	Valve South, Valve Corporation	Valve Corporation	November 17, 2008
Left 4 Dead 2	Valve Corporation	Valve Corporation	November 19, 2009
Lost Squad	Oak Gear
MINERVA	Adam Foster		April 28, 2013
NeoTokyo	STUDIO RADI-8		July 3, 2009
No More Room in Hell	No More Room in Hell Team	Lever Games	October 31, 2011
Nuclear Dawn	InterWave Studios		September 26, 2011
Operation: Black Mesa	Tripmine Studios
Pirates, Vikings, and Knights II	Octoshark Studios		February 12, 2010
Portal	Valve Corporation		October 9, 2007
Portal 2	Valve Corporation		April 19, 2011
Portal 2 Sixense Perceptual Pack	Sixense Studios	Sixense Entertainment	September 20, 2013
Portal Stories: Mel	Prism Studios		June 25, 2015
Postal III	Trashmasters	Akella	November 23, 2011
Prospekt	SCT		February 18, 2016
Requiem of Science	Kirill Bulavintsev		January 7, 2022
Revelations 2012	Dark Artz Entertainment		April 23, 2012
SiN Episodes: Emergence	Ritual Entertainment		May 10, 2006
Smashball	Smashball Labs		June 18, 2009
Tactical Intervention	FIX Korea		October 8, 2013
Team Fortress 2	Valve Corporation, Escalation Studios		October 9, 2007
The Beginner's Guide	Everything Unlimited		October 1, 2015
The Forgotten Ones	Bernt Andreas Eide		July 16, 2014
The Hidden: Source	Hidden Team		June 13, 2005
The Ship	Outerlight	Blazing Griffin	July 30, 2006
The Stanley Parable	Galactic Cafe		October 17, 2013
Titanfall	Respawn Entertainment	Electronic Arts	March 11, 2014
Titanfall 2	Respawn Entertainment	Electronic Arts	October 28, 2016
Transmissions: Element 120	Shokunin, Thomas M. Visser, Vincent Thiele		June 16, 2016
Vampire: The Masquerade - Bloodlines	Troika Games	Activision	November 16, 2004
Vindictus	devCAT, Nexon	Nexon America	January 21, 2010
Zeno Clash	ACE Team	Tripwire Interactive, Iceberg Interactive	April 21, 2009
Zombie Master	Zombie Master Team		March 11, 2009
Zombie Panic! Source	Zombie Panic! Team		December 28, 2007

Other information

Source Dedicated Server

Works with multiple Source-based games.

See the "Source Dedicated Server", "SteamCMD" (for most Source games), or "HLDUSUpdateTool" (for games which haven't received updates for a while) articles on the Valve Developer Community Wiki for more information.

See also the the Steam Support article for setting up a Source Dedicated Server through Steam and the article on setting one up stand-alone.

Command line arguments

Can be used to increase performance in Source-based games and fix various problems.

Longer launch options can be stored in an autoexec.cfg (without the - prefix and with every command on its own line) in the game's config folder for easier readability and editing. Starting the game with the -autoexec command is required.

See the Command Line Options article on the Valve Developer Community Wiki for more information.

Issues fixed

Game launches in an unsupported or unusable resolution

Add your resolution to the game's launch options[citation needed]
Navigate through your Steam library and open the game's properties. Add -width X -height Y to the game's launch options. Where X is your horizontal resolution and Y your vertical resolution. Press OK.

Console doesn't open

Make sure developer console is enabled. This can usually be toggled in the Advanced Settings under Keyboard/Controls.

You can't use the button above Tab ↹ and to the left of 1 to open the console, this is because the game only recognizes ~, which is not present on non-US keyboard layouts. There are two possible solutions:

Bind another key[citation needed]
Navigate through your Steam library and open the game's properties. Add -console to the game's launch options. Start the game. Type in the console bind x toggleconsole (where x is the button you want permanently assign to this). Notes You can then remove the -console switch.

Bind console key with autoexec[citation needed]
Navigate to the configuration file location. Create or open your autoexec.cfg file with your text file editor of choice. Make a new line and write bind x toggleconsole where x is the button you'll press to open up the console. Save and exit the text editor. Notes You might need add exec autoexec to your launch parameters if it doesn't get executed automatically by the game.

Change keyboard layout[citation needed]
Open Language and Country settings in Windows's the control panel. Select Change keyboard into Language and Keyboard tab. Add English (US) keyboard to the list of the available. Make sure you are using it and save.

Missing models or textures

Any missing textures will appear as a black and pink checkerboard pattern, missing models are represented by a large red ERROR model.

Instructions[citation needed]
Find the desired game in the Library, then Right Click on it. Select Properties, Local Files, then push the Verify Integrity of Game Cache... button.

Some maps are way too dark on Intel HD Graphics GPUs

Games and maps using ambient occlusion can be very dark on Intel HD Graphics. Upstream issue here.

Modify configuration file

If the console mat_tonemapping_occlusion_use_stencil is available (e.g. in Garry's Mod): Set mat_tonemapping_occlusion_use_stencil to 1 Notes If the setting does not save, add it to the games autoexec.cfg If the console variable is not available (e.g. in CS:GO or Left 4 Dead 2): Edit Steam\userdata\<userid>\<appid>\local\cfg\video.txt Add "setting.mat_tonemapping_occlusion_use_stencil" "1" Save and set the file to read-only. Notes Not setting the file permissions to read-only will revert the change on the next game launch.

Enabling 7.1 Output (Windows Vista and later)

Even when 7.1 speaker option is selected, game may still output to only 5 speakers, leaving the side surround speakers void of sound.

This issue is typically present in Source engine games that use Miles Sound System.

Enable 7.1 Speaker Output In Source Engine Games[citation needed]

Refer to Restoring Legacy Audio Effects (DirectSound 3D) and enable DirectSound 3D based on the audio device you have. Run the game and open the console (~). In the console, type: snd_legacy_surround 1 Restart the game. Select 7.1 speaker output from the game's options. Notes If only up to 5.1 is available, select 5.1 and the game will discretely output to 7 speakers. If using Creative's ALchemy, Source engine games typically need Buffers set to 5 and Duration set to 10.