9Pneuma: Breath of Life

Pneuma: Breath of Life is a first person adventure/puzzle game. Think Portal without, er, portals. You explore a gorgeous 3D environment, progressing to the next level only when you’ve solved a rather intricate puzzle.
There’s nothing too taxing on offer – I say that because I pretty much managed to solve it by myself, and while I’m not admitting I’m entirely stupid, I’m generally not as good at puzzle games as I’d like to be – but there are enough puzzles to keep you scratching your head for several hours. Achievement wise, you’ll get your coveted 1000G just for completing the game. Hooray!