What was the name of this show?? Creepy Mansion reality show?

It was like a huge mansion! And there was all kinds of like.... creepy obsticles. And whoever won and was the last in the mansion won like a crazy amount of money or something. It was a relatively new show. Came out a few years ago. I remember one episode, the had to go find a hidden object in a room that looked totally normal, and when they ran in to look for the things, the floor was made of goo or slime or something they got stuck in! Then later, they had to go through a vault or something to find money maybe? Anyone got any ideas?