Ultra Accelerated
Ultra Accelerated (UA) is a hack for Fate Accelerated¸ meant to have similar mechanics but written entirely in one page. Fate is a generic scenario RPG system with focused on simple and narrative oriented mechanics.
To play UA you're going to need 2 to 5 players¸ one to be the Game Master (GM) and the others to play the roles of the Playable Characters (PC). You're also gonna need four special six-sided dice called Fate Dice or Fudge Dice (dF) with two faces marked with a "+" (+1)¸ two faces marked with "-"(-1) and two blank faces (+0).