|If you are interested,|
check it out.
Conditional Injury is a wound based system to replace the hit points in GURPS. I don't necessarily prefer one or the other, but it's a fun alternative that gives a different flavor to dealing with wounds; some might argue it is more realistic than hit points, I dunno, haven't watched enough people die in real life to make an authoritative statement one way or another. Get the cheat sheet here, if you like it.