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.

There is another project attempting to remake Heretic in a Free Software format (Blasphemer).
A new project recently has started to remake Hexen (Zauberer).

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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

Freedoom FAQ

Freedoom FAQ

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Another large update to Freedoom, representing many changes to the game, giving a better feel for being an independent game and fleshing out neglected...

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FreeDM and Phase 1 have grown out of the shadows of the project and have seen rapid advances, largely lead by Protox, our prominent Brazilian contributor...

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32 levels designed for competitive deathmatch play. An “IWAD” file is used by the Doom engine, which contains all the game data such as graphics...

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The primary Freedoom version, featuring 32 levels in one massive chapter. It is compatible with Doom II mods. Many maps have been updated, along with...

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

Comments  (0 - 10 of 29)
Nightcaster460
Nightcaster460

Really amazing. The iwad should get a higher score than that.

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SleepyPiggy64
SleepyPiggy64

I noticed that on the new shotgun sprite you're not wearing gloves.

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szemi
szemi

Glad Doom source code is out, you made a very cool game. :D

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TheUnbeholden
TheUnbeholden

Yeah, Freedoom is not a replacement though, its more like a different take. Doom from an alternate dimension where Doomguy is a prisoner in some offworld convict labour outpost, possibly a ex-marine that becomes a hero because of circumstance and not because hes a ultimate badass, and the enemies are not from hell but are straight up alien scum who made a deal with the humans for some peace treaty only to turn against humanity after taking control of some of the prisoner colonies and turning the prisoners (AGM coverts them into mindless drones to do the labour who are capable of receiving signals and follow commands) into shock troops by activating their aggressive impulses through alien technology interfering with their normal signals, destablising the whole place and setting you from your cell. Its probably going to take another 2 years for FreeDoom to be complete and the story to be fully fleshed out but yeah its still optional to the regular doom experience.

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Nightcaster460
Nightcaster460

I thought you were part of the brutal doom community?

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Eagle12687
Eagle12687

I like the idea of FreeDoom. The engine is open-source, so naturally people should take advantage of that fact. However, some of the monsters look a bit poor. I would like to try my hand at making my own monsters for the project, (I am an hobby artist) but I am using Windows Vista and things like XWE do not work very well. Is there some other way I can import monsters? The worst that can happen is that they won't look very good either, but it couldn't hurt for me to try.

John 3:16 "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life."

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JFreakXD
JFreakXD

/John 3:16 "For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life."/

:)

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VGames
VGames

Make sure you read all of that chapter. Very important stuff.

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JFreakXD
JFreakXD

yeah, but im not there yet. im still in the old testament.

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SamVision
SamVision

Still needs a better plasma gun pickup sprite. I mean come on! The existing one looks nothing like the HUD sprite.

Reply Good karma Bad karma+3 votes
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