Alien Arena 7.50 (a.k.a. Alien Arena 2011) was released few days ago and it comes with several new notable features regarding the physics engine, as well as two new maps, updated player and skins models, new music for various maps, revamped in-game IRC client, as well as several bug fixes and improvements.
To compile the Alien Arena source in Debian/Ubuntu, type in a terminal:
sudo apt-get build-dep alien-arena
sudo apt-get install libode-dev
sudo make install
The executable is called crx, and it is located in the /usr/local/bin/ directory (if no other path was specified at the command-line to the configure script). To run it type crx in a terminal or press Alt+F2 and type crx followed by Enter in the run box that appears.
The configuration directory for Alien Arena is located in ~/.codered/, where ~ is your home directory (e.g. /home/USER/.codered).
Do it and feel fun 😉
source : TuxArena