Previously referred to as the 'Doom 3 Engine', Tech 4 is id Software's current licensing platform. Powering games such as Doom 3, Quake 4 and Enemy Territory Quake Wars, Tech 4 revolutionized the use of realtime dynamic lighting as well as other technologies.

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Blog RSS Feed Report abuse Latest News: Doom 3 Source Code Released

About Doom III with 92 comments by Henley on Nov 23rd, 2011

::: Update :::

On the 22nd of November the Doom 3 source code was released with a few changes and omissions.

Gamasutra wrote:The source does not contain any game data, which is still covered by the original EULA.

The source also does not include functionality enabling rendering of stencil shadows via the "depth fail" method (commonly called "Carmack's Reverse"), which lawyers from parent company Zenimax said might infringe on a patent for a Creative Labs 3D shading technique.

You can find the download here on ModDB it is recommended however if you are reading this in a few months that you seek out any official versions due to it might be a more recent update.


Back at QuakeCon in 2009 John Carmack announced that the Doom 3 source code would be released at some point in the future. Confirmed today at two years later at the 2011 QuakeCon that the very same source code will be made available to everyone after id's next game RAGE releases later this year.

VG247_liveblog wrote:Carmack said in his keynote that these releases of Id code are a "challenge to other developers," and are beneficial to both Id and "the community."


This means that a whole mess of modifications like the Dark Mod, Arx, Last Man Standing can release a almost indie version. It also means we might see some fantastic new endeavours being birthed because of this, maybe this will start another Team Fortress as we all know how well that worked out last time.


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Post comment Comments  (40 - 50 of 60)
Ichiman94 Oct 15 2009, 2:18pm says:

until rage, its will be opensource, i cant wait for this :D :P
good engine

+3 votes     reply to comment
Rigelblast Apr 26 2009, 4:53pm says:

id Tech 4 is an advanced engine which has really taken games to a whole new level.

+3 votes     reply to comment
Landon1121 Jul 14 2010, 8:59pm replied:

same with the source engine...............

+1 vote     reply to comment
pwnz Aug 30 2010, 5:43pm replied:

Yeah, Source engine has a more bigger community but from what I've seen so far, ID Tech 4 has a smaller one but stronger. They added so many new things from HDR to Megatextures.

+3 votes     reply to comment
ibz Apr 9 2009, 6:18am says:

dunno whether it's open source yet and we are in 2009?

+2 votes     reply to comment
Argoon Jul 18 2009, 1:34pm replied:

I hope i'm wrong but with the selling of ID, i'm afraid idtech4 will not be open sourced, but as i said i hope i'm wrong.

+3 votes     reply to comment
Gurra300 Aug 13 2009, 5:33pm replied: John Carmack said...he will release the source code for it when they release RAGE

+3 votes     reply to comment
cortez666 Oct 6 2009, 4:04pm replied:

lets hope its true.
i really want make something with this engine

+2 votes     reply to comment
Dafama2k7 Apr 7 2009, 5:52am says:

As fas as i know, the NEW upcoming Raven software game Return to Castle Wolfenstein 2 is based on latest instalment of IdTech4 + MegaTexture amazing engine also !!!

+3 votes     reply to comment
Slayer_2 Apr 6 2009, 10:46pm says:

For anyone who mods games using the ID Tech 4 Engine, this group is for you:

+3 votes     reply to comment
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Released Aug 2, 2003
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Doom FTW

Aug 9 2011, 4:28pm by Juffe

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