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 11.1.0:

News & Announcements

Odamex 11.1.0 Released

Hekksy :: August 10, 2025, 02:56:40

Odamex 11.1.0
Odamex 11.1.0 has been released! The 11.1.0 client can run on 11.0.0 servers, just in case the server hosts are a bit behind.

Some features that may stick out are:

THE FLATPAK BUILD IS...

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Odamex 11.0.0 Released

Hekksy :: February 28, 2025, 19:18:07

Odamex 11.0.0
The next major version of Odamex is here! Included are a myriad of quality-of-life improvements and bug fixes, as well as some long-requested features!

Some features that may stick out...

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Latest Updates

Changelog

Rev	Comment
65951ed	Merge pull request #1368 from odamex/odatests-fixes Fix a few more edge cases w...
59b1789	elseif is one one in pwsh
684d45e	Fix up logic for updating test results
0cda5d5	Clear lastexitcode so that the script doesn't fail randomly

Issue Tracker

Id	Description
1362	[FEATURE] Chat history
1361	Clean up a whole bunch of compiler warnings
1360	[BUGFIX] Clean up some weirdness with gotomap on startup
1359	[FEATURE + BUGFIX] Basic COMPLVL support

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™