Aleph One (formerly known as the Marathon Open Source Project) is a free and open-source first-person shooter engine based on the source code of Bungie Studios' Marathon 2: Durandal. The project commenced in early 2000, when Bungie released the code shortly before being acquired by Microsoft and spurred the fan community to further develop it. Since that time, Aleph One has become a successful project in terms of development and community support. Most modern-day and die-hard Marathon enthusiasts use Aleph One due to its enhancements over the original games and the fact that it is playable with today's platforms. Its name is taken from the second infinite cardinal number in transfinite arithmetic and references Marathon Infinity, the final game in the Marathon Trilogy.

Marathon 2: Durandal

Marathon 2: Durandal

Full Version 0 comments

Marathon 2: Durandal was the first sequel in the Marathon series of science fiction first-person shooter computer games from Bungie Software. It was released...

AlephOne 0.22 Windows

AlephOne 0.22 Windows

Full Version 0 comments

Highlights for this release include Lua persistence, a network stats display, and joystick support (from Eric Peterson). Jeremiah Morris has also joined...

AlephOne 0.22 Mac

AlephOne 0.22 Mac

Full Version 0 comments

Highlights for this release include Lua persistence, a network stats display, and joystick support (from Eric Peterson). Jeremiah Morris has also joined...

AlephOne 0.22 Linux

AlephOne 0.22 Linux

Full Version 0 comments

Highlights for this release include Lua persistence, a network stats display, and joystick support (from Eric Peterson). Jeremiah Morris has also joined...

Aleph One 0.23 Linux

Aleph One 0.23 Linux

Full Version 0 comments

"Major highlights for this release include an entirely new modern 3D renderer option, a plugins system, PNG screenshots, Lua API improvements, and bug...

Aleph One 0.23 Mac OS X 10.4

Aleph One 0.23 Mac OS X 10.4

Full Version 0 comments

"Major highlights for this release include an entirely new modern 3D renderer option, a plugins system, PNG screenshots, Lua API improvements, and bug...

Aleph One 0.23 Windows

Aleph One 0.23 Windows

Full Version 1 comment

"Major highlights for this release include an entirely new modern 3D renderer option, a plugins system, PNG screenshots, Lua API improvements, and bug...

Marathon//Max (Version 3)
Max Payne 2

Marathon//Max (Version 3)

Marathon//Max Full Version 1 comment

The 3rd and final version of Marathon//Max. This is a full, standalone download with all-new updates included. Texture resolution must be set to HIGH...

City ES3
Half-Life 2: Episode Two

City ES3

City ES3 Full Version 0 comments

City ES3 is a personal experiment in Source SDK mapmaking, inspired by the groundbreaking Marathon games by Bungie Software. One level, seven somethings...

Marathon 2 Durandal Manual
Marathon 2: Durandal

Marathon 2 Durandal Manual

Marathon 2: Durandal Guides 0 comments

The official manual for the game, now distributed as freeware.

Marathon Infinity Manual
Marathon Infinity

Marathon Infinity Manual

Marathon Infinity Guides 0 comments

The official manual for the game, now distributed as freeware.

Marathon Manual
Marathon

Marathon Manual

Marathon Guides 0 comments

The official manual for the game, now distributed as freeware.

Tempus Irae v1.1 + Lost Levels
Marathon Infinity

Tempus Irae v1.1 + Lost Levels

Tempus Irae Full Version 0 comments

with over 37 levels and almost as many new textures as Marathon, Durandal, and Infinity combined. Comes with TI2: The Lost Levels; there are several addons...

Marathon: Rubicon X
Marathon

Marathon: Rubicon X

Marathon Full Version 0 comments

Rubicon X is a free, cross platform, first person shooter that continues the story of Bungie’s Marathon trilogy. First released as Marathon:Rubicon...

Eternal X v1.1.0 beta 4
Marathon Infinity

Eternal X v1.1.0 beta 4

Eternal Full Version 0 comments

Spanning 52 levels and all new everything. Eternity Awaits.

M.A.D.D.s for Aleph One SDL v3.0
Marathon

M.A.D.D.s for Aleph One SDL v3.0

Marathon Patch 0 comments

This is an SDL port of Quartz's M.A.D.D. patch for Infinity (by Quartz, port by Thetop). Also adds Hulks from Raul Bonilla's. Adds the Marathon Automated...

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