Excelsias said: On it! /em You find yourself wandering in space with no life support, oxygen, or fuel. /em Roll a 1d1000000000 to survive, TN = 1000000000-1 /em Game over I feel like his is a faithful, "Old School" and accurate interpretation of how Gravity SHOULD have played. :) Don't forget the player will have to describe what his character is doing while he is flipping through space without anything to grab and how he is going to act as his life support runs out or burns up on reentry. (I didn't see the movie and don't feel like it but I've seen some of the trailers). That would be a good one shot game as the players know their characters are going to die either flying off deep into space or burning up on reentry or their suit getting ripped open by debris or such. If you want to go cinematic then if their suit gets ripped, they can describe how their body explodes, they suffocate, their blood boils away, or even how they burn up going down into that atmosphere. GURPS is perfect for this. It is so realistic and deadly, it would be a perfect one shot.