Red Eclipse, A Free And Open Source FPS
The game is a single-player and multi-player first-person ego-shooter, built as a total conversion of 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.
To install Red Eclipse download the source package from this page and extract the content of the redeclipse_1.1_linux_bsd.tar.bz2 file. Open the redeclipse folder and look for the redeclipse.sh file, to start Red Eclipse double click the redeclipse.sh file and click on the Run button.
Some features are:
Parkour, impulse boosts & dashing, and power jumps
Favourite gamemodes with tons of mutators and variables
Builtin editor lets you create your own maps cooperatively online
Red Eclipse Homepage