Frets on fire:
Frets on Fire is a game of musical skill and fast fingers. The aim of the game is to play guitar with the keyboard as accurately as possible.



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ScummVM:
ScummVM is a cross-platform interpreter for several point-and-click adventure engines. This includes all SCUMM-based adventures by LucasArts, Simon the Sorcerer 1&2 by AdventureSoft, Beneath a Steel Sky and Broken Sword 1&2 by Revolution, and many more.



ScummVM | Get ScummVM at SourceForge.net

FreeCol:
FreeCol is an open version of Colonization. It is a Civilization-like game in which the player has to conquer the new world.



FreeCol | Get FreeCol at SourceForge.net

SuperTuxKart:
SuperTuxKart is a kart racing game featuring Tux and friends. It is a fun-racer game, focusing on fun and ease of play.



SuperTuxKart | Get SuperTuxKart at SourceForge.net

Simutrans:
Simutrans is a transport simulation games. Planes, ships, trains, trams, trucks, busses, or monorails are at your disposal. But factories have contracts and passengers will only travel to their own destinations. Many graphic sets (paks) are available.



simutrans | Get simutrans at SourceForge.net

AssaultCube:
AssaultCube, formerly ActionCube, is a free first-person-shooter based on the game Cube. Set in a realistic looking environment, while gameplay stays fast and arcade. This game is all about team oriented multiplayer fun.
AssaultCube | Get AssaultCube at SourceForge.net