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

Downloads RSS Feed Latest Downloads
FreeDoom Enhanced

FreeDoom Enhanced

Sep 12, 2014 Effects GFX 0 comments

Adds GL specific features to FreeDoom. Requires GZDoom.

Freedoom Enhanced v0.4 and 3xBR v0.1

Freedoom Enhanced v0.4 and 3xBR v0.1

Apr 29, 2014 Prefabs 0 comments

Freedoom is an unfinished IWAD, so this project will remain a work-in-progress until it is finished. I've replaced the sprites for the Revenant's fireballs...

FreeDoom v0.8

FreeDoom v0.8

Apr 29, 2014 Demo 0 comments

The primary Freedoom version, featuring 32 levels in one massive chapter. It is compatible with Doom II mods.

Ultimate FreeDoom v0.8

Ultimate FreeDoom v0.8

Apr 29, 2014 Demo 1 comment

An alternative game, with 36 different levels split into four chapters. It is compatible with mods for the original Doom and The Ultimate Doom.

FreeDM v0.8

FreeDM v0.8

Apr 29, 2014 Demo 0 comments

Beat your friends in these 32 levels designed for competitive deathmatch play.

Ketchup - Universal Gore Mod T4

Ketchup - Universal Gore Mod T4

Apr 18, 2014 Prefabs 4 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...

Post comment Comments  (10 - 20 of 25)
TailsRoberto Oct 16 2009, 1:53pm says:

FreeDoom SUCKS!

-4 votes     reply to comment
MultiHeLiOs Dec 3 2010, 7:52pm replied:


-1 votes     reply to comment
crimtion Jul 22 2009, 8:04pm 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, 11:27pm says:

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

+2 votes     reply to comment
mod_noob Sep 10 2008, 2:55am says:

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

+2 votes     reply to comment
FPSUHalcyon Aug 21 2008, 12:06am says:

so, is this a freeware version of doom 1?

+2 votes     reply to comment
InStars Dec 14 2008, 3:34pm replied:

yea ,something like that...

+2 votes     reply to comment
sonamy123 Apr 7 2008, 6:44pm 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, 6:56pm says:

Thanks leilei... This is really good :)

+2 votes     reply to comment
claytonian Feb 12 2007, 1:28pm says:

i love this thing. it is awesome!

0 votes     reply to comment
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Released Sep 28, 2006
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