Games

There are many games for Linux including;
 * Commercial games (such as Unreal Tournament) which includes free demos
 * Old commercial games that are now open-source (such as Quake, Quake 2 and Q3:Arena)
 * Open-source games (such as Nexuiz, Tuxracer, Supertux and Freeciv)

Distros

 * Linux-Gamers.net Distro (based on Arch Linux)
 * Games Knoppix Distro
 * Ubuntu Ultimate Gamers Distro
 * Supergamer Distro (based on Vector Linux)
 * SteamOS (based on Debian stable)