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 11.2.0:

News & Announcements

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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Odamex 11.1.1 Released

fuzztooth :: 2025-11-11 06:05:54

Odamex 11.1.1 Odamex 11.1.1 has been released! The 11.1.1 client can run on 11.0.0 and 11.1.0 servers, just in case the server hosts are a bit behind. We heavily recommend all server hosts to...

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Latest Updates

Changelog

Rev	Comment
88f58e7	Update FUNDING.yml
072f97b	Merge pull request #1474 from odamex/funding-yaml Add GitHub Sponsors username ...
e6c9aa1	Add GitHub Sponsors username to FUNDING.yml Updated GitHub funding configuratio...
4ae414e	Merge pull request #1445 from odamex/readme-vanilla-demo Remove mention of vani...

Issue Tracker

Id	Description
1477	[BUG] Teleport to line with same tag desyncs in multiplayer
1475	[FEATURE] Build and upload macOS dmgs as part of automated release process
1473	Implement new UMAPINFO keys `jumping`, `crouching`, and `freeaim`.
1472	Simplify network options menu

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™