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.

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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 12.3.0:

News & Announcements

Odamex 12.3.0 QuakeCon 30 Edition Released!

Hekksy :: 2026-08-07 00:55:26

Odamex 12.3.0 is out now! This is a minor version release with many bug fixes, feature additions, and performance improvements. Added Created a cvardocjson console command to dump cvar...

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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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Latest Updates

Changelog

Rev	Comment
b72d2f5	Merge pull request #2020 from odamex/bugfix/flat-grid-lines [BUGFIX] Fix "grids...
bc9d74f	Merge branch 'stable' into bugfix/flat-grid-lines
08d15e4	make variable additions to R_PrepWall more verbose, and add comments to explain ...
0076f69	remove dead code

Issue Tracker

Id	Description
2046	Fix: "Blips" on start of predicted sector motion
2045	[FEATURE] Launcher appearance (system, dark and light) mode selection
2042	[BUG] Monsters are resurrected on top of each other with co_boomphys 1
2035	[FEATURE] Add a "add a bookmark to this netdemo at this timestamp" hotkey

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™