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.

Image RSS Feed Latest Screens
Half-Life Half-Life Half-Life
Blog RSS Feed Post news Report abuse Latest News: Clearing up confusions about Valve's engines.

19 comments by ytres on Mar 12th, 2011

I have made this news post in an effort to clear up misconceptions about GoldSource and Source.

GoldSrc is based upon the Quake 1 engine, not the Quake 2 engine.
GoldSource is a heavily modified version of the Quake 1 engine. It has a few lines of code from the Quake 2 engine, to fix bugs, but at it's core, it's the Quake 1 engine. Ken Birdwell from Valve explains it in further detail:

"It is fundamentally just a heavily modified Quake 1 engine. There are about 50 lines of code from the Quake 2 engine, mostly bugs fixes to hard problems that Carmack found and fixed before we ran into them."

At its core, it's a Quake 1 engine. You can tell this by comparing Half-life's map compiling tools with those shipped with Quake1. You'll find very minor differences -- none of them are fundamental. The core rendering is architecturally identical to Quake1, the only "significant" change is removing the fixed palette, making map lighting RGB instead of 8 bit, and converting software rendering to be 16 bit color instead of 8 bit color, which was pretty easy and only required minor code changes. Our skeletal animation system is new, though it was heavily influenced by the existing model rendering code, as were a lot of our updated particle effects, though less so with our beam system. Decals are totally new, our audio system has some major additions to what already existed, and at ship time our networking was almost totally Quake1 / QuakeWorld networking but about a year later Yahn rewrote most of all of it to be very different in design. The most highly changed sections are the game logic; ours being written in C++ and Quake's being in written interpreted "Quake C". Our AI system is very very different from anything in Quake, and there's a lot of other significant architectural changes in the whole server and client implementations, though if you look hard enough you can find a few remnants of some nearly unmodified Quake1 era entities buried in places.

Jay Stelly adds, "We also took PAS from QW and/or Q2 and a couple of other minor routines I can remember (no more than 100-200 lines of code there). There was some feature overlap (as Ken mentions) like game code DLLs and colored lighting, but we developed our own solutions to those independent of Q2."

- Ken Birdwell, Valve


Source is a heavily modified version of GoldSource, with mostly new code. Also has Havok physics (albeit heavily tweaked) incorporated.
It's not based on the "Havok Engine", it has the Havok Physics Engine incorporated in it however.

Hopefully that will help clear up some things for our users.

Add game Games
Half-Life
Half-Life

Half-Life

Updated 1 day ago Released Oct 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...

Counter-Strike
Counter-Strike

Counter-Strike

Updated 1 week ago Released Nov 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...

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

Counter-Strike: Condition Zero

Updated 1 week ago Released Mar 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...

Cyber Arena
Cyber Arena

Cyber Arena

Updated 1 week ago TBD Multiplayer First Person Shooter

This mod is made to restore the atmosphere of classic shooters. Classic maps, favorite weapon is a guarantee of great gameplay.

Gunman Chronicles
Gunman Chronicles

Gunman Chronicles

Updated 1 week ago Released Nov 2000 Single & Multiplayer First Person Shooter

Gunman Chronicles is a futuristic first-person shooter computer game using the Half-Life game engine. It was originally planned as a total conversion...

Post comment Comments  (60 - 70 of 159)
saweetdawg10
saweetdawg10 Jul 6 2011, 10:24am says:

halo 4 is coming out but im more intresed in black masa

+9 votes     reply to comment
saweetdawg10
saweetdawg10 Jul 6 2011, 10:23am says:

holy **** its awsome

+2 votes     reply to comment
SiPlus
SiPlus Jun 11 2011, 8:39am says:

Not going to be open-source=(

+1 vote     reply to comment
Maxkhor95
Maxkhor95 May 23 2011, 10:10am says:

VALVE Will Survive,Waiting for HL2 EP3.

+2 votes     reply to comment
madcheese32
madcheese32 Jun 8 2011, 2:50pm replied:

dont expect a ep3
but i think the Black Masa mod i gonna be great
Blackmesasource.com

+1 vote     reply to comment
Cremat0r
Cremat0r Jun 10 2011, 12:12pm replied:

I wonder which one will be release first
Episode 3 or Black Mesa, both seem to get released in minimum 6 Years.,

+3 votes     reply to comment
AmaroqDricaldari
AmaroqDricaldari Apr 13 2011, 12:25pm says:

Hey, Valve, some guys are using the Quake Engine to make a version of the Source Engine that runs on PSP.

Using the engine, they made a game called Gateway, a portable version of Portal. Moddb.com

Also, some guy made a mod for the first Half-Life so that it would run on older computers. Moddb.com

+1 vote     reply to comment
mxtp1
mxtp1 May 18 2011, 9:05am replied:

Gateway is cancelled, and was lacking textures.

The Driver you are linking is now 13 years old, and not a mod.

I'm missing GUNMAN Chronicles in the list of Games wich used Goldsrc

+2 votes     reply to comment
ytres
ytres Apr 22 2011, 5:26pm replied:

Valve doesn't look at this page.

+2 votes     reply to comment
awesomemann1234
awesomemann1234 Apr 11 2011, 9:17pm says:

I think i'm gonna be a metro cop for halloween...

+2 votes     reply to comment
Post a Comment
click to sign in

You are not logged in, your comment will be anonymous unless you join the community today (totally free - or sign in with your social account on the right) which we encourage all contributors to do.

2000 characters limit; HTML formatting and smileys are not supported - text only

Platform
Windows
Company
Valve
Contact
Send Message
Official Page
Valvesoftware.com
Licence
Commercial
Release Date
Released Nov 1998
Engine Watch
Track this engine
Share
Community Rating

Average

9.6

369 votes submitted.

You Say

-

Ratings closed.

Highest Rated (10 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

Embed Buttons

Promote GoldSource on your homepage or blog by selecting a button and using the embed code provided (more).

GoldSource GoldSource
GoldSource
Statistics
Rank
27 of 722
Last Update
4 months ago
Watchers
394 members
Games
16
Files
124
News
60
Features
32
Tutorials
24
Reviews
53