id Software has released the source code to their classic game, Doom, under the GNU General Public License. This means that the engine which powers Doom is Free Software. However, the game engine is only one component of a complete game.The Doom engine uses an "IWAD" file to store all of its game data. This contains the raw data used by the game — the artwork, sound effects, levels, everything which defines Doom as a game. Until now, one of the original proprietary files was still needed in order to play Doom.The Freedoom project aims at collaboratively creating a free IWAD file. Combined with the free source code, this results in a complete game based on the doom engine which is Free Software.

Doom source code + Freedoom IWAD

The purpose of Freedoom

Freedoom has multiple purposes:

  1. To create a complete free game based on the Doom engine.
    A large library exists of modifications which have been created for Doom over the past fifteen years; Freedoom maintains compatibility with the original IWAD files so that these modifications can be played.
  2. To create a pool of free game material for people to reuse in their own projects.
    All material in the Freedoom project is released under the modified BSD license, allowing people to reuse it as they wish. Freedoom contains a large collection of material. This includes Doom levels, sound effects, graphics, and music.
  3. To serve as a demonstration of the talent and creativity of the Doom community.
    Despite its age, Doom has retained a surprisingly large community of fans. Freedoom is developed collaboratively by fans of the original Doom games.

A modern source port is needed to play Freedoom. We recommend one of the following ports:

PrBoom  GNU GPL            GNU/Linux, *BSD, Mac OS X, other POSIX, WindowsSoftware, OpenGL
Odamex  GNU GPL           GNU/Linux, *BSD, Mac OS X, other POSIX, WindowsSoftware, OpenGL
ReMooD  GNU GPL               GNU/Linux, *BSD, Mac OS X, other POSIX, WindowsSoftware
The Eternity Engine  GNU GPL    DOS, WindowsSoftware
Boom     GNU GPL             DOS         onlySoftware
Risen3D   GNU GPL           Windows   onlyOpenGL

It is possible to run it with Chocolate Doom, although it requires a special workaround.

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Blog RSS Feed Report abuse Latest News: Freedoom 0.5 released

2 comments by leilei on Sep 5th, 2006

Notable changes:
- New weapon sprites: Shotgun, super shotgun, chaingun, rocket launcher, and plasma gun have new graphics
- New sounds: Pistol firing, mancubus pain, explosion
- New "skeleton" sprite placeholder for unfinished monsters
- New monster sprites: Baron (WIP), Revenant
- Flats and patches (wall/floor textures) updated with a cleaner, detailed appearance
- FreeDM IWAD project, among other smaller things

Get it from the Freedoom site

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Ketchup - Universal Gore Mod T4

Ketchup - Universal Gore Mod T4

Apr 18, 2014 Prefabs 0 comments

This is basically Brutal Doom with none of the gameplay changes... just the blood and gore, nothing else. This is for compatibility with Total Conversions...

10x Universal mod

10x Universal mod

Sep 11, 2013 Prefabs 0 comments

Take on more enemies then you ever thought you could. Compatible with all IWADs except hacx & chex.wad.. It does work with the sequel chex3.wad though...

Post comment Comments  (20 - 24 of 24)
Chunky Dec 3 2005, 9:24am says:

Ack sorry! That's obviously the first free chapter/demo. Delete that if you want :S

+2 votes     reply to comment
Chunky Dec 2 2005, 8:13pm says: +1 vote     reply to comment
Phalxor Aug 27 2005, 11:04pm says:

uhhh you have failed, or org.


-1 votes     reply to comment
yourgrandma Mar 3 2008, 12:24pm replied:

ya zdaemon is great co-op, capture the flag, deathmatch and it automatically downloads the wads needed when you join a server.

But this is an interesting project as well.

+2 votes     reply to comment
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Released Sep 28, 2006
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