Arx Libertatis is a source port based on the publicly released Arx Fatalis source code.Genre: Role-playing, Action
id Tech 4, popularly known as the Doom 3 engine, is a game engine developed by id Software and first used in the video game Doom 3.Genre: Action
The Doom engine, also known as id Tech 1, is the game engine that powers the id Software games Doom and Doom II: Hell on Earth.Genre: Action
The Quake engine is the game engine developed by id Software to power their 1996 video game Quake.
id Tech 2, popularly known as the Quake II engine, is a game engine developed by id Software for use in their games, most notably Quake II.
Layers of Fear is a first-person psychedelic horror game with a heavy focus on story and exploration.Genre: Adventure
Iris 2.0 is a cross-platform open-source 2D/3D client for playing the MMORPG Ultima Online on FreeshardsGenre: Role-playing
OpenTomb is a cross-platform reimplementation of classic Tomb Raider 1—5 engines that were developed by now defunct Core Design.
EDuke32 is an awesome, free homebrew game engine and source port of the classic PC first person shooter Duke Nukem 3D — Duke3D for...Genre: Action
by Duion18.104.22.168 (24 Dec 2014)
Uebergame (also called “Übergame”) is a truly free and open source multiplayer shooter, no hooks attached.Genre: Shooter, Action
23 Oct 2014)
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series.Genre: 4X, Turn-based, Strategy