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 12.1.0:

News & Announcements

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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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...

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Latest Updates

Changelog

Rev	Comment
a788c26	Merge pull request #1628 from odamex/bugfix/blockmap [BUGFIX] Blockmap 0th elem...
90df0d8	Merge pull request #1627 from odamex/bugfix/lor-horizon [BUGFIX] Vanilla-compat...
bdbd618	Merge branch 'stable' into bugfix/blockmap
cb87803	Merge pull request #1629 from odamex/mempool-update Simplify mempool to be a sm...

Issue Tracker

Id	Description
1635	On Win32, use Win32 sync objects, particularly SRW Locks, for the console thread
1634	Service reliable channels until idle when gracefully disconnecting
1633	[FEATURE] Allow auto-aim to ignore friendly targets in co-op
1632	[FEATURE] Allow hitscan weapons to 'pass' through players/friendly monsters in c...

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™