Limbo is a unique 2D platform game that takes place (I assume) in Limbo; the place between life and death that lies at the entrance to Hell. The game is black and white, and is very German expressionist in its look (think the 1920's Nosferatu) If I had to sum up Limbo I would say it feels, and sounds like a 2D Ico.
A young boy wakes up in a dank dark forest. Maybe on a quest to find a loved one, or maybe just on a quest to escape the nightmare he has found himself in. Though the game is black and white it can still be quite graphic, the bear trap death for instance sees the trap close over the boy severing his head, while falling into a spiked pit will lead to the boy being impaled on one of the spikes.There is no music to speak of, but there is constant background noise. Rain splashing down, birds tweeting, steam pipes, and creaks all form to make an alive feeling place.