multiplayer FPS game based on Cube2

 A single-player and multi-player first-person ego-shooter, built on Cube
 Engine 2, which lends itself toward a balanced gameplay, completely at the
 control of map makers, while maintaining a general theme of agility in a
 variety of environments.
 .
 Features:
  * Balanced gameplay, with a general theme of agility in a variety of
    environments
  * Parkour, impulse boosts, dashing, sliding, and other tricks
  * Favourite gamemodes with tons of mutators and variables
  * Available for Windows, Linux/BSD and Mac OSX
  * Builtin editor lets you create your own maps cooperatively online