Dementium: The Ward(2007)

Dementium - The Ward is a mature-themed first-person shooter/survival horror game for the Nintendo DS that tells the tale of a man who awakens to find himself alone in a mysterious, derelict hospital that is frozen in time. Confronted by the deadly, grotesque surgical experiments that wander the halls, a series of challenging puzzles and a cast of peculiar characters, he must face his deepest fears, unlock the mysteries of the hospital, and escape with his life. The Ward offers a completely new experience on the Nintendo DS and pushes the platform to its limits with full 3D visuals and bone-chilling audio that brings the world screaming to life.