5. Robbing The Cradle - Thief: Deadly Shadows
https://www.youtube.com/watch?v=Rw4YZuRUgXA This marks the third asylum-themed entry on this list, so it was really only a matter of time until somebody threw a good ol' fashioned haunting into the mix to round things out. With "Robbing The Cradle" Ion Storm crafted one of the scariest moments in the history of the medium, hands down. To put it simply: if you consider yourself a horror aficionado you simply must play this level. The Thief series has flirted with the horror genre since it's very inception, but when it came time to craft the third instalment, the developers took everything they learned from "Return To The Cathedral" and ran with it - throwing in the likes of zombified inmates and ghosts. As you creep through the pitch-black corridors of the dilapidated asylum, you'll find yourself wrestling with terror-induced paralysis as you duck into rooms to avoid the undead residents of Shalebridge, Seriously, the place exudes so much evil it's practically a living thing in itself.