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
5a9edf8	Merge pull request #1598 from endless-r0ad/bugfix/demo-hud-rewind Fix HUD displ...
8b85294	make it a tab instead of 2 spaces
b59c33a	use R_ForceViewWindowResize() when reading demo snapshot, in case sizeup or size...
7a791a9	Merge pull request #1591 from odamex/bugfix/item-respawn [BUGFIX] Items stop re...

Issue Tracker

Id	Description
1597	[BUG] D2IRO map14 generalised floor line specials take a long time to activate
1596	[BUGFIX] Crash when propagating sound in maps with single-sided lines marked as ...
1595	[CHANGE] Break out PlayerStatus messages by application intent
1594	[FEATURE] Rebase Vanilla/indexed skin colors on 12.1.0.

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™