10€ and lower:

Team Fortress 2
Mirror's Edge
Psychonauts
Painkiller Black Edition
Call of Cthulhu: Dark Corners of the Earth
Saint's Row 2
FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL FUEL

...sorry

Chime
Oddworld: Abe's Odyssy
Loom
The Dig
Fate of Atlantis
Cryostasis
Peggle
Dark Messiah of Might and Magic
Sid Meier's Railroads or Pirates!
Deus Ex 1 or 2

PC Gaming is Dead.