Gold Source (also known as Gold Src) is a heavily-modified version of the original Quake 1 engine, that powered some of the most critically acclaimed games of it's day:

  • Half-Life
  • Half-Life: Opposing Force
  • Half-Life: Blue Shift
  • Team Fortress Classic
  • Counter-Strike
  • Day of Defeat
  • and many more.

A powerful and versatile engine for it's time, it helped propel modding forward quite a bit with its mod development tools. And even though it's already 10+ years old, it's mod projects are still going strong.

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Blog RSS Feed Report abuse Latest News: 2014 Kickoff Update

21 comments by Uphys on Mar 29th, 2014

Welcome to our first media update this year!

Read Full Article.

Multiplayer Beta Release Q1 2014 Cancelled

Our plan to bring you the multiplayer beta of Operation Black Mesa early this year didn't work out, regrettably. Several factors and circumstances forced us to completely keep it under the hood until further notice.

Multiplayer Progress

Multiplayer will feature classic maps such as Yard, Crossfire and Boot Camp as well as brand-new ones like Deptcharge and Gambit from day 1.
Currently in development: CTF mode and weapon placement.


Singleplayer Campaign

Development is running smoothly; those NPCs aren't going to animate themselves though! If you're interested in joining our team, check out the jobs page where you can find all positions currently open. We look forward to welcoming you on board!

Pit Worm's Nest

Remember Guard Duty (Blue Shift: Source)? We're making solid progress here too:

Living Quarters Outbound

OBM: The Video Game?

We've been given the option of developing our projects as full indie titles to be sold on Steam!
This opens up a whole lot of attractive possibilities to consider; however no decision has been reached yet as to this matter.

Alien Controller

M1A1 Tank

Thanks for your support in making all of this possible!

Until next time,
Tripmine Dev Team

Counter-Strike: Condition Zero

Counter-Strike: Condition Zero Counter-Strike: Condition Zero

Updated 1 day ago Released Mar 1, 2004 Single & Multiplayer First Person Shooter

Counter-Strike: Condition Zero advances the #1 online action game series by introducing objective based single-player action, the official CS bot, and...

Half-Life: Blue Shift

Half-Life: Blue Shift Half-Life: Blue Shift

Updated 2 days ago Released Jun 11, 2001 Single Player First Person Shooter

Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which...


Half-Life Half-Life

Updated 2 days ago Released Oct 24, 1998 Single & Multiplayer First Person Shooter

Named Game of the Year by over 50 publications, Valve's d├ębut title blends action and adventure with award-winning technology to create a frighteningly...

Half-Life: Opposing Force

Half-Life: Opposing Force Half-Life: Opposing Force

Updated 4 days ago Released Oct 30, 1999 Single Player First Person Shooter

Half-Life: Opposing Force is an expansion pack for Valve Software's science fiction first-person shooter video game Half-Life. The game was developed...


Counter-Strike Counter-Strike

Updated 4 days ago Released Nov 11, 2000 Single & Multiplayer First Person Shooter

Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally...

Post comment Comments  (70 - 80 of 157)
supra36 Mar 11 2011, 9:21am says:

Someone should finally explain in form of a news or something that GoldSource is based on Quake 1, not Quake 2. It has only minor parts from Quake 1.

+1 vote     reply to comment
ytres Mar 12 2011, 10:40pm replied:

Just posted.

+1 vote     reply to comment
MahtXL Nov 7 2010, 9:13am says:

Condition Zero, and Nightfire on the PS2 are both shining examples of what this engine can really do. Half life in my opinion is not a good example for this engine, since it was the first game built with it, it obviously is not what this engine can pull off.

+3 votes     reply to comment
TheLP Jan 12 2011, 10:12am replied:

Aahhh, the multiplayer memories :3

+1 vote     reply to comment
tschumann Nov 7 2010, 8:39pm replied:

Was the PlayStation 2 version of Nightfire on GoldSource? I didn't think Gearbox did that version.
You're right though, Half-Life really doesn't take advantage of all the features of GoldSource.

0 votes     reply to comment
MahtXL Nov 12 2010, 6:48am replied:

Yeh its GoldSource, and that game looks amazing. I actually was surprised it was this engine thats how good it looks.

+1 vote     reply to comment
tschumann Dec 13 2010, 11:00pm replied:

Do you know if the Xbox and GameCube versions are on GoldSource too?

+1 vote     reply to comment
TheDiddyHop Oct 14 2010, 12:03pm says:

how do you make a mod for half life 1?

+1 vote     reply to comment
tschumann Oct 25 2010, 2:53am replied:

You can get the SDK here:

+1 vote     reply to comment
LizardGamer Oct 4 2010, 6:02pm says:

lol, they already have done that

+1 vote     reply to comment
TheDiddyHop Oct 4 2010, 2:59pm says:

Gold source was basicly the original source. source is better but goldsource is awesome. if you dont get what i've said then i'll say it in a more understandable way... source is better than gold source but gold source is still good

+1 vote     reply to comment
KarimIO Oct 9 2010, 2:10am replied:

@Kane: No, they're two different engines. Source is different from GoldSrc. You can hardly compare. Sure, source has better starting out graphics, but it's much harder to mod, from what I've heard. I haven't started using the SDK for Source, but when I just look at the files, I have nightmares.
GoldSrc, on the other hand, starts not as good, but with work, it can become better than source, and from there, it's gonna be just as easy, if not easier to mod GoldSrc. If you want to start modding, start on GoldSrc

It's BASED on Quake, but both have very heavy modding.

+1 vote     reply to comment
Sharlowidalot Jan 7 2011, 9:44pm replied:

Source is based on GoldSource... And Goldsource is based on QuakeWorld Engine

+2 votes     reply to comment
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Released Nov 17, 1998
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366 votes submitted.

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Highest Rated (8 agree) 10/10

this engine is known all around the world... This was, is and it will still be half-life

Jan 21 2011, 2:46pm by bluluxabica

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