[katanka]

I found this little gem of a game the other day, thought i'd share it with all ye Head-fiers....check it out Machinarium

 

[majid]

Try out their older Samorost 2 if you haven't already. It's heart-meltingly cute:
Samorost 2

 

[FalconP]

This game is royal tough; it seems that you can never open a door or turn on a switch without solving a geometric brain-teaser. And thanks to its art-style and color scheme, a few essential objects are well-hidden (sometimes in rather illogical places). However, the art, the music, and the humor make all the hassles worthwhile.