Some games are just built to be on a PC. Risen, with its tricky menu system and thousands upon thousands of items, weapons and potions, is just screaming, "I should be played on a PC", and you know what, that's right.
On the Xbox 360, Risen comes across as a poorly implemented, dull looking game with very little character of its own, bogged down by interminable menus and a combat system that leaves a lot to be desired.