Template:Source branches
From Valve Developer Community

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Usage
This template contains list of Source engine branches, including third-party branches (using {{{show}}} parameters set to thirdparty).
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Valve
Release date | Title | Developer | Platforms | Notes |
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7 Oct 2004 | ![]() |
Valve Corporation | PC: Windows | First released with Counter-Strike: Source, later used by Half-Life 2, Half-Life: Source. Later received HDR update in 2005 with the release of Half-Life 2: Lost Coast. |
1 Jun 2006 | ![]() |
Valve Corporation | PC: Windows | Released with the release of Half-Life 2: Episode One, all previous Valve games using Source 2004 were upgraded to this branch. See Features section for the list of changes and new features. |
10 Oct 2007 | ![]() |
Valve Corporation | PC: Windows | Also known as "The Orange Box engine branch". Released with the release of The Orange Box (Half-Life 2: Episode Two, Team Fortress 2 and Portal). Half-Life 2 and Half-Life 2: Episode One was also ported to this engine branch exclusively on consoles (Xbox 360, PlayStation 3). See Features section for the list of changes and new features. |
17 Nov 2008 | ![]() |
Valve Corporation | PC: Windows | Released in 2008 with the release of Left 4 Dead, and later updated for Template:L4d2branch in 2009. Runs on newer version of Source, which does not requires Half-Life 2 base content to run. Game files from this branch were stored into VPK files, as opposed to GCF. See Features section for the list of changes and new features. |
3 Jun 2009 [confirm] |
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Valve Corporation | PC: Windows, macOS (2010), Linux (2014) | Released in 2009 with an update to Day of Defeat: Source, and later Team Fortress 2. All Source 2006 games (except Half-Life: Source and Half-Life Deathmatch: Source) were upgraded to the engine branch with the release of Mac update in May 26, 2010 (Half-Life 2 and it's episodes), and later on Windows in June 10, 2010, alongside Counter-Strike: Source update which features many new changes from Hidden Path Entertainment. |
19 Jul 2010 | ![]() |
Valve Corporation | PC: Windows | Released in 2010 with the release of Alien Swarm, a remake of the Unreal Tournament 2004 mod with the same name. This is the only post-Orange Box engine branch with it's source code publicly available for free. |
18 Apr 2011 | ![]() |
Valve Corporation | PC: Windows, macOS, Linux (2014) | Released in 2011 with the release of Portal 2. |
21 Aug 2012 | ![]() |
Valve Corporation | PC: Windows, macOS, Linux (2014) | Released in 2012 with the release of Counter-Strike: Global Offensive, featuring many changes not available with previous branches. This engine branch was later made obsolete with the release of Counter-Strike 2, which is the port of CS:GO to the Source 2 engine, which also adds new gameplay features and remake several maps. |
7 May 2013 | ![]() |
Valve Corporation | PC: Windows | Released in 2013, during the transition to the new content distribution system called SteamPipe. All remaining Source 2006 games (Half-Life: Source and Half-Life Deathmatch: Source) and all Source 2009 (including Source Multiplayer sub-branch) were upgraded to the engine branch. Source SDK Launcher has been deprecated on this branch in favor of launching tools (Hammer, Model Viewer, etc.) through .bat files, located in ![]() game name\bin . Aside from that, the SteamPipe update infamously broke tons of old Source engine mods, requiring manual fix in order for it to function correctly. |
9 Jul 2013 [confirm] |
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Valve Corporation | PC: Windows | Released in 2013 with the release of Dota 2. This engine branch was later made obsolete with the release of Dota 2 Reborn update, completely upgraded to the new Source 2 engine. |
Release date | Title | Developer | Platforms | Notes |
Third-party
Todo: Coming soon. List the third-party Source engine branch here.
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