Who says Ubuntu Linux is not for gamers?! Looking for the best, hottest games for you Ubuntu Linux computer? Check these games out!

Tremulous | Gridwars | VDrift
World of Padman | Nexuiz | Scorched 3D
Glest | Flight Gear | Battle for Wesnoth
RTCW Enemy Territory | Alien Arena 2007 | Action Cube

#9 Battle for Wesnoth (wesnoth.org)

A turn-based strategy game with a fantasy theme. Fight a desperate battle to reclaim the throne of Wesnoth, or take hand in any number of other adventure

Install:

sudo apt-get install wesnoth -s