What's the most tense level you have played in a game.

[TheTitaniumNub]

Ya know, I will also say The Nursery from ZombiU (Such a hidden gem and underrated game btw)
Gears of War 1 on insane when your in those mine carts, very intense moment, died so many times.
Most bosses from the Souls games when it was my very first playthrough
Im sure there are lots of others, just cant think of them right now