Amnesia: The Dark Descent (75% Off)
Price: $4.99 (75% Off)
It takes a special kind of game to resurrect the survival horror genre and push it forward all in one fell swoop, but Amnesia is just that sort of beast. It's a game that will leave you quaking in fear at every turn, the kind of game where light - not bullets - is the precious commodoty, and it will leave you shaken up. Play this with the lights off.