Cataclysm: Open Source Zombie Apocalypse Rogue-like
Anybody ever tried this game? It's a slightly-futuristic themed roguelike where you are (currently) the sole survivor of a zombie apocalypse. At this point, goals and story haven't really been added, so it's just survive as long as you can before the zombies eat your brains. I've found it to be quite amusing and fairly challenging, and the playstyle/interface is fairly user-friendly. It's still in alpha, so it's a bit buggy, but is otherwise not too bad.
It's available for Windows or Linux here
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.