Apocalypse World
A narrativist game by lumpley games.
It's half past the apocalypse, shit is weird, and you and your party are all fighting for survival - too bad you're all dicks to each other. It's The Walking Dead, but with more Mad Max aesthetic and psychic powers.
The core rules for this system have been hacked and re-hacked into a whole family of rules light RPGs.
See also: