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.

Download Now

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 12.3.0:

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...

0 Comments

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...

0 Comments

View more...

Latest Updates

Changelog

Rev	Comment
f750a07	Merge pull request #1911 from Acts19quiz/Acts19quiz_MouseMenu Fix Mouse Setup t...
e5babfb	Fix Mouse Options text clipping past left edge.
95c5661	Merge pull request #1878 from odamex/release/12.3.0 Merge release/12.3.0 to sta...
98b37b5	Remove incorrect ednums from MT_CAREPACK and MT_HORDESPAWN

Issue Tracker

Id	Description
1950	Use tic timing info embedded into packet headers for rollback and validity check...
1949	Debugger pretty printers for OFlags
1948	Update SendAll to send reliable retransmissions between High Priority and new Re...
1946	Fix gib / death animation desync on spawn

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™