ODAMEX - Online Multiplayer Doom^™

Odamex is a free, cross-platform (Mac, Windows, Linux) modification of the Doom engine that allows players to easily join servers dedicated to playing Doom online.

A copy of Doom, Doom II, Freedoom or Chex Quest is recommended to play it. If you do not own Doom, it can be purchased on GOG or Steam.

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Get On Board The Discord

Chat with friends, join a game, enter a tournament, get help, follow development and more on our Discord channel. It's the best way to stay directly connected to all things Odamex.

Enter Discord Server

Developers Wanted

Know C or C++? Have a desire to work on a multiplayer game engine? The Odamex Development Group is looking for developers with a little or a lot of time and interest in helping advance this open source multiplayer doom source port. Get our code on GitHub, and check out our bug tracker for where we need help the most.

Help The Effort - Expand Our Wiki

Every little bit helps. We need smart, capable folks to improve our wiki. Sign up via the boards and do your part!

Odamex Wiki Sign Up

Find more Odamex players:

Download Now for Your Platform

Each stable package includes client, server, and launcher applications.

Version 12.2.1:

News & Announcements

Odamex 12.2.1 Released

Hekksy :: 2026-06-28 01:32:33

Odamex 12.2.1 is out now! This is a maintenance release before the big 13, but we still have a hefty changelog of fixes and minor additions we wanted to get out to the community while we...

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Odamex 12.1.0 released

rakohus :: 2026-01-07 01:41:20

🔧 Odamex 12.1.0 is out now! This is a minor release with fixes for a few issues found in 12.0.0. Added The CVar sv_startwadscript has been added. Similar to sv_startmapscript and...

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Latest Updates

Changelog

Rev	Comment
c0809b7	Merge pull request #1818 from odamex/bugfix/512-high-tex-crash [BUGFIX] Fix cra...
00938a2	Merge branch 'stable' into bugfix/512-high-tex-crash
de1a41a	for good measure, ignore bad post lengths to avoid crashes
7d06a9f	clamp counting destpostraw since we need to worry about header/footer

Issue Tracker

Id	Description
1820	Fix missing intermission when ExitLevel coincides with a netdemo snapshot-write
1819	Fix psprite state and player color when using netff or netrew in a netdemo
1817	[BUGFIX] More MBF-like targeting, with some performance improvements
1814	[BUG] Opening PPSS2 via drag-and-drop in explorer causes a fatal error

Doom, Doom II & More

ODAMEX is compatible with the following games:

Open Source, Any Platform^*

ODAMEX is designed with portability in mind. From PCs to netbooks, consoles to handhelds, Amiga to Windows - our goal is for any device to run multiplayer Doom.

If you have ported ODAMEX to a new device or platform, let us know!

ODAMEX - Online Multiplayer Doom™