Rated 9.0 on gamespot.
Just wanted to share this pretty good puzzle game with you guys
I'm almost done the game, only 6 more chapters left.
At the beginning, while playing ,I was like

when I died.
Pretty good game though!
Try it .. its only 63mb.
Here's the review from gamespot
http://www.gamespot.com/limbo
The Good
- Moody, black-and-white visuals
- Excellent sound design
- Thoughtful puzzles with lots of variety
- Hidden secrets reward a second play-through.
Somewhere between life and death lies limbo, a nightmarish place where the feeble rays of light that flicker from above are swallowed whole by ink-black shadows. A young boy, courageous though ill-equipped to survive in such a hostile place, is trapped in this dreamworld, locked away from the safety of reality. Dangerous creatures, hostile natives, and deadly traps populate this eerie plane of existence, making survival the only tangible goal to strive for. Limbo dresses the cerebral lure of thoughtful puzzles with a bleak visual design and sparse, moody audio to suck you in as completely as the protagonist child who is mercilessly trapped here. This artistic, somber adventure so expertly combines all of its elements that it's nigh impossible to shake free from its grip once it grabs hold of you.