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GoldSrc/Engine versions

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List of GoldSrc GoldSrc engine versions and build numbers. GoldSrc build number is the number of days since October 24, 1996 (same as Hammer editor build date).

Finding Protocol version (early GoldSrc builds)

For games that doesn't display protocol version when using version console command, you can record the demo on the old version of the game, then copy the demo file to latest version of a GoldSrc game and try to play it back, user will see these demo error message on console, displaying which protocol version of the old GoldSrc game using:

Playing demo from demoapr51999.dem.

WARNING! demo protocol outdated. Demo file protocols 38:4, Engine protocol is at 48:5

Error: Corrupt demo file.

List of GoldSrc builds

Build (exe) Version Game Branch Protocol version Date Notes
315 0.52 Half-Life ? Sep 4 1997 Alpha Version
N/A 1.07 Half-Life ? late 1997 or early 1998 Alpha Version
676 ? Half-Life: Day One ? Aug 31 1998
738 1.0 Half-Life ? Nov 1 1998 (Speedrun note) There is clipping up
740 1.0.0.5 Half-Life Protocol Version 35 Nov 3 1998
742 1.0 Half-Life ? Nov 5 1998
813 1.0.0.8 Half-Life ? Jan 15 1999
893 1.0.0.9 Half-Life Protocol Version 38 Apr 5 1999 Included in Half-Life Platinum Collection (Second Edition, USA), which also ships with 1.1.1.0 patch that can be installed separately.
895 1.0.0.9 Half-Life ? Apr 7 1999
929 1.0.1.0 Half-Life Protocol Version 38 May 11 1999
943 1.0.1.0 Half-Life ? May 25 1999
1013 1.0.1.3 Half-Life Protocol Version 39 Aug 3 1999
1021 1.0.1.3 Half-Life Protocol Version 39 Aug 11 1999
1202 1.0.1.6 Half-Life Protocol Version 40 Feb 8 2000
1309 1.1.0.0 Half-Life Protocol Version 41 May 25 2000 Changed Console fonts. First version to introduce VGUI (v1), initially used for scoreboard (replacing the old Opposing Force-style scoreboard), and Counter-Strike MOTD. Later VGUI v1 was used for Steam Tracker.
1341 1.1.0.1 Half-Life Protocol Version 42 Jun 26 2000
1460 1.1.0.4 Half-Life Protocol Version 43 Oct 23 2000
1600 6.0.1.6 Half-Life: Opposing Force Protocol Version 43 Mar 12 2001
1601 1.1.0.6 Half-Life
Counter-Strike 1.1
Protocol Version 43 Mar 13 2001
1629 1.0.0.0 Half-Life: Blue Shift Protocol Version 40 Apr 10 2001
1672 1.0.1.3 Half-Life Protocol Version 39 May 23 2001 [[Half-Life (Dreamcast)|Dreamcast version]] (leaked)
1712 1.1.0.7 Half-Life Protocol Version 43 Jul 2 2001 WON binaries for this build are commonly combined with Half-Life 2005 Package (used by Speedrunners), in order to play Half-Life with pre-WON Bhop speed cap.
1713 1.1.0.7 Half-Life Protocol Version 43 Jul 3 2001
1754 1.0.0.1 Half-Life: Blue Shift Protocol Version 40 Aug 13 2001
1757 ? Half-Life Protocol Version 40 Aug 16 2001 PS2 Version
1784 1.1.0.8 Half-Life
Deathmatch: Classic
Team Fortress: Classic
Counter-Strike 1.3
Protocol Version 45 Sep 12 2001 WON - Bunny hop now have speed cap (it mentions that it was removed but its not completely removed, just heavily nerfed).
In Readme.txt and setup changelog: Bunny hopping removed from HLDM, Counter-Strike, TFC, and DMC.
This version also adds Miles Sound System (3rd party middleware, used for voice chat), voice chat support, multicast spectator, hardware survey on installer (being the predecessor to Steam Hardware Survey) and other changes such as Caps Lock key is now bindable, HLDM weapons now use client side prediction, and other bug fixes.
1786 1.1.0.8
6.1.0.8 (HL:OF)
Half-Life, Opposing Force Protocol Version 45 Sep 14 2001
1790 1.1.0.8 Half-Life Protocol Version 45 Sep 18 2001
2006 1.0.1.4 Half-Life, Counter-Strike 1.4 Protocol Version 46 Apr 22 2002 WON build with Steam Beta support. Counter-Strike 1.4 Beta (and later retail) also runs on this version. Steam Beta was launch around this time. Tracker (later renamed to Steam Friends) was added.
Since most users at the time did not use Steam Beta, a error message "Tracker Error: TrackerUI.dll invalid, not loading" will appear on console, because files related to Steam Tracker is missing.
Aside from Tracker and Steam Beta, it relies on VGUI v2 (also introduced with this update) and was used exclusively for the in-game overlay that opens up two windows in-game: Half-Life Desktop and Tracker (Tracker window will not show up if Tracker-related files are missing).
Also, users with Steam Beta can play with non-Steam (WON-only) users running on same build.
In setup changelog: Steam beta clients and non-Steam clients can play together on the same server now.
VAC also make debut on this version.
All WON versions onward support Steam Beta.
2006 1.0.1.4 Half-Life Protocol Version 46 Apr 22 2002 This version can seen when you run the game with -steam, enabling Steam Beta support. A loading bar will be also shown aswell.
2008 1.1.0.9 Half-Life, Counter-Strike 1.4 Protocol Version 45 Apr 24 2002 WON build with Steam Beta support. Same as build 2006 (Apr 22), this build and subsequent WON builds since 2002 support Steam Beta, and adds Valve Anti-Cheat.
2008 1.0.1.4 Half-Life, Counter-Strike 1.4 Protocol Version 45 Apr 24 2002 This version can seen when you run the game with -steam, enabling Steam Beta support. A loading bar will be also shown aswell.
2050 1.1.1.0 Half-Life Protocol Version 46 Jun 5 2002
2056 1.1.1.0 Half-Life
Team Fortress: Classic
Counter-Strike 1.5
Protocol Version 46 Jun 11 2002 Last WON (retail) version. Also support Steam Beta.
2056 1.0.1.4 Half-Life Protocol Version 46 Jun 11 2002 This version can seen when you run the game with -steam, enabling Steam Beta support. A loading bar will be also shown aswell.
2229 1.1.1.1 Half-Life
Team Fortress: Classic
Counter-Strike 1.5
Protocol Version 46 Dec 1 2002 This version can be seen on readme.txt in Steam Half-Life (as of 2025).
2349 1.0.1.4 Day of Defeat Protocol Version 46 Mar 31 2003
? 1.0.1.6 Half-Life ? ? There is clipping up
? 1.1.0.4 Half-Life: Opposing Force Protocol Version 46 ?
? 1.1.0.6 Half-Life ? ? WON
2511 1.1.2.0 Half-Life Dedicated Server Protocol Version 46 Sep 9 2003
2526 1.1.2.0 Half-Life, Counter-Strike, Counter Strike: Condition Zero Deleted Scenes Protocol Version 47 Sep 24 2003 Steam release build.
2567 1.0.0.0 Counter Strike: Condition Zero Protocol Version 47 Nov 4 2003
2603 1.0.0.0 Counter Strike: Condition Zero Protocol Version 47 Dec 10 2003
2738 1.0.2.5 Counter-Strike Protocol Version 47 Jul 7 2004
2771 1.1.2.5 Counter-Strike Protocol Version 47 Jun 7 2004
2797 1.1.2.5 Counter-Strike Protocol Version 47 Jun 21 2004
2834 1.1.2.5 Counter-Strike Protocol Version 47 Jul 28 2004
3147 1.1.2.5 Counter-Strike Protocol Version 47 Jun 6 2005
3210 1.1.2.5 Counter-Strike Protocol Version 47 Aug 8 2005
3213 1.1.2.0/1.0.0.0 Half-Life Protocol Version 47 Aug 11 2005
3248 1.1.2.0
1.0.0.0 (CZ:DS)
Half-Life, Counter Strike: Condition Zero Deleted Scenes Protocol Version 47 Sep 15 2005 Steam build, commonly used to run 2001 WON Half-Life binaries, removing the bunny hop cap. NGHL. Half-Life 2005 Package. 1.0.0.0 version for Counter-Strike: Condition Zero Deleted Scenes
3266 1.1.2.0
1.1.2.5 (CS)
Half-Life, Counter-Strike Protocol Version 47 Oct 3 2005 1.1.2.5 Version for Counter-Strike
3329 1.1.2.5 Counter-Strike Protocol Version 47 Dec 5 2005
3382 1.1.2.5 Counter-Strike Protocol Version 47 Feb 6 2006
3639 ? Counter-Strike Protocol Version 48 Oct 24 2008 Linux Version
3647 1.1.2.0
1.1.2.5 (CS)
Half-Life, Counter-Strike Protocol Version 47 Oct 19 2006 1.1.2.5 Version for Counter-Strike
3651 1.1.2.5 Counter-Strike Protocol Version 47 Oct 24 2006
3745 1.1.2.0/1.0.0.0 Half-Life Protocol Version 47 Jan 25 2007
3779 1.1.2.0/1.0.0.0 (HL)
1.1.2.1 (CS)
Half-Life, Counter-Strike Protocol Version 47 Feb 28 2007
3798 1.1.2.0/1.0.0.0 Half-Life Protocol Version 47 Mar 19 2007 Last version to have "Friends" feature.
3873 ? Counter-Strike Protocol Version 48 Jun 15 2009 Linux Version
3932 1.1.2.0/1.0.0.0 Half-Life Protocol Version 47 Jul 31 2007 Removed "Friends" menu option in favor of Steam overlay, which was introduced back around September (or earlier) in 2007.
3939 1.1.2.5/1.0.0.0/2.0.0.0 Counter-Strike, Counter Strike: Condition Zero Deleted Scenes Protocol Version 47 Aug 7 2007 1.0.0.0/2.0.0.0 Version for Counter-Strike: Condition Zero Deleted Scenes
4156 1.1.2.5/2.0.0.0 Counter-Strike Protocol Version 47 Mar 11 2008
4381 1.1.2.6 Half-Life, Half-Life: Opposing Force, Half-Life: Blue Shift, Counter-Strike, Team Fortress Classic Protocol Version 48 Oct 22 2008
4382 1.1.2.6 Half-Life, Counter-Strike Protocol Version 48 Oct 23 2008 Protocol Version 48 Release
4383 1.1.2.6 Counter-Strike Protocol Version 48 Oct 24 2008 Linux Version
4554 1.1.2.2/1.1.2.6/2.0.0.0 Half-Life, Counter-Strike, Sven Co-op Protocol Version 48 Jun 15 2009 Last version before SteamPipe. GoldSrc Package 2.3. 1.1.2.6/2.0.0.0 Version for CS.
4883 1.1.2.1 Counter-Strike Protocol Version 48 Mar 8 2010
5369 ? Counter-Strike ? Jul 7 2011
5758 1.1.2.6 Counter-Strike Protocol Version 48 Jul 20 2012
5787 1.1.2.6 Counter-Strike Protocol Version 48 Aug 28 2012
5936 1.0.1.4 Cry of Fear Protocol Version 48 Apr 21 2013
5961 1.1.2.7 Counter-Strike Protocol Version 48 Feb 18 2013
5971 1.1.2.7 Counter-Strike Protocol Version 48 Mar 1 2013
5999 1.1.2.7 Counter-Strike Protocol Version 48 Mar 28 2013
6027 1.1.2.2 Half-Life, Counter-Strike Protocol Version 48 April 27 2013 SteamPipe Beta
6153 1.1.2.2 Half-Life, Half-Life: Opposing Force, Half-Life: Blue Shift, Counter-Strike SDK 2.4 (Aug 31) Protocol Version 48 Aug 29 2013 First SteamPipe Build, GoldSrc Package 1.36
7559 7561 1.1.2.2 Half-Life, Counter-Strike Protocol Version 48 Jul 5 2013 (Jul 7 2017) 7559 - Linux , 7561 - Windows
7960 1.1.2.2 Half-Life, Counter-Strike Protocol Version 48 Aug 10 2018
8121 5.0.1.1 Sven Co-op Protocol Version 48 Jan 19 2019
8177 1.1.2.7 Counter-Strike Protocol Version 48 Mar 15 2019
8196 1.1.2.2 Half-Life Protocol Version 48 Apr 3 2019
8202 1.1.2.7 Counter-Strike Protocol Version 48 Apr 9 2019
8245 1.1.2.7 Counter-Strike Protocol Version 48 May 22 2019
8308 1.1.2.2
1.1.2.7 (CS)
Half-Life, Opposing Force, Blue Shift, Team Fortress Classic, Ricochet, Day of Defeat, Deathmatch Classic, Counter-Strike 1.6, Counter-Strike: Condition Zero, Counter-Strike: Condition Zero Deleted Scenes Protocol Version 48 Jul 24 2019
8684 1.1.2.2
1.1.2.7 (CS)
Half-Life, Opposing Force, Blue Shift, Team Fortress Classic, Ricochet, Day of Defeat, Deathmatch Classic, Counter-Strike 1.6, Counter-Strike: Condition Zero, Counter-Strike: Condition Zero Deleted Scenes SDK 2.4 (steam_legacy) Protocol Version 48 Aug 3 2020 Last pre-Anniversary Update build.
9884 1.1.2.2
1.1.2.7 (CS)
Half-Life, Opposing Force, Blue Shift, Team Fortress Classic, Ricochet, Day of Defeat, Deathmatch Classic, Counter-Strike 1.6, Counter-Strike: Condition Zero, Counter-Strike: Condition Zero Deleted Scenes Protocol Version 48 Nov 16 2023 Half-Life 25th Anniversary Update.
10210 1.1.2.2
1.1.2.7 (CS)
Half-Life, Opposing Force, Blue Shift, Team Fortress Classic, Ricochet, Day of Defeat, Deathmatch Classic, Counter-Strike 1.6, Counter-Strike: Condition Zero, Counter-Strike: Condition Zero Deleted Scenes SDK 2.5 (HL25) Protocol Version 48 Oct 7 2024 25th Anniversary Update - Current version.

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