Gaming on Gentoo Linux. Perfect.
This game is average at best. While it prides itself on being a strictly free and open source first person shooter, other free and open source shooters - such as Xonotic and Red Eclipse - blast OpenArena out of the water.
I love this game; it's always fun to play. The weapon balance is good, the maps are really creative, and the mutators give the game virtually endless possibilities. The unlimited ammo and health regeneration is a great move; it's a lot more fun this way.
One of my favourite things about this game is the parkour, where you can run across a wall or kick off it to reach higher places. This is no gimmick, either: I find it to be invaluable in a number of situations.
Great game; 10/10
Xonotic is awesome, I'm totally hooked. The servers are largely empty, but that's not the game's fault; they usually have bots to cover for the lack of people. The game-play itself is great; it's fast paced and a lot of fun.