Urban Terror™ is a free multiplayer first person shooter, it can be described as a Hollywood tactical shooter; somewhat realism based, but the motto is "fun over realism". This results in a very unique, enjoyable and addictive game. (from )
Running Urban Terror in a second X server
You might want to run this game in an extra X server. To do that, create a new bash script with that content and mark it as executable:
#!/bin/bash DISPLAY=:1.0 xinit urbanterror $* -- :1
Now you can use CTRL+ALT+F7 to get to your first X server with your normal desktop, and CTRL+ALT+F8 to go back to your game.
Because the second X server is only running the game and the first X server with all your programs is backgrounded, performance should increase. In addition, it is much more convenient to switch X servers while in game to access other resources, rather than having to exit the game completely or alt-tab out. Finally, it is useful if Urban Terror crashes. Simply CTRL+ALT+BACKSPACE on the second X server to kill that X and all processes on that desktop will terminate as well.