DING DING DING!I thought it was going to be in a city, but then I am sure that's already been done so I wasn't sure. That could be neat.
But no!
It's pretty simple. Battle Royale........in an office building!
Could be a 20 story building or a 60 story building. Or there could be a 20 story building connected to a 60 story building with walkways. Have multiple people wake up on same floors, so you can either work with them to kill the others and then hash it out with them in the end or go ham as a 1 man army and murder everyone.
The people I wanted to get to work on it really liked the idea, but who knows if I'll ever get the people to do it.