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 12.0.0:

News & Announcements

Odamex 12 - The DSDHacked Release!

rakohus :: 2025-12-26 05:58:42

Odamex 12.0.0 is out now! Odamex 12 has arrived! This is the next major version of Odamex, featuring lots of bug fixes, quality of life changes, and new features. There is one major feature we...

1 Comment

Odamex 11.2.0 Released

rakohus :: 2025-11-15 02:55:02

Odamex 11.2.0 has been released! This is a small maintenance release containing a single fix that prevents a client exploit allowing players to toggle server-controlled variables while online. The...

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Latest Updates

Changelog

Rev	Comment
442f015	Merge pull request #1525 from odamex/bugfix/init-skyboxes [BUGFIX] Initialize s...
79e4e27	fix potential deref
2cac3b0	fix potential crash with skypicker
cf8f144	init skyboxes when mt_skypickers are transmitted to the client

Issue Tracker

Id	Description
1524	Cleanup of client `s_sound.cpp`
1523	Apply fix from #1520 to ReplaceSpecialChars
1522	Make sure r_clipmaskedspecial and r_thingsectorlight still get set in multiplaye...
1521	Stable -> Protobreak

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™