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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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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Post comment Comments  (10 - 20 of 25)
TailsRoberto Oct 16 2009 says:

FreeDoom SUCKS!

-4 votes     reply to comment
MultiHeLiOs Dec 3 2010 replied:


-1 votes     reply to comment
crimtion Jul 22 2009 says:

dude ive searched thru so many places and i cant find the frikin right file

+2 votes     reply to comment
IronMaster Oct 10 2008 says:

plz update this game again it could use some more work!

+2 votes     reply to comment
mod_noob Sep 10 2008 says:

I am ashamed to say, don't have Doom so I like freedoom it.

+2 votes     reply to comment
FPSUHalcyon Aug 21 2008 says:

so, is this a freeware version of doom 1?

+2 votes     reply to comment
InStars Dec 14 2008 replied:

yea ,something like that...

+2 votes     reply to comment
sonamy123 Apr 7 2008 says:

does it include more up to date pc FPS controls? (WASD and mouse aiming)

+2 votes     reply to comment
Malvado_Zombie[X] Mar 12 2008 says:

Thanks leilei... This is really good :)

+2 votes     reply to comment
claytonian Feb 12 2007 says:

i love this thing. it is awesome!

0 votes     reply to comment
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