I managed to find Red Faction: Armageddon (Xbox 360) for 5 euros. I really liked RF:guerrilla and was not completely disappointed by the demo for this one, so this might be OK for that price.

Also, I got Dirt 2 (5 euros), Left 4 Dead 2 (5 euros) and Dead Island GOTY (traded for Valkyria Chronicles) for PC. My zombie apocalypse quota is pretty much filled for a moment, but there is room for some driving, even after I recently finished the excellent Driver: San Francisco.

Spoiler: It is all a dream!