One PageAll in One (A1) is a one page RPG¸ which means it's an entire set of rules to play Roleplaying Games written in a single page! It can be played in any setting of scenario (generic) and is heavily built upon the principles of collaborative worldbuilding and little to none difficulty for the storyteller¸ since all the difficulties and descriptions are made up on the spot by everyone at the table.
To play this game you will need a pair of six-sided dice (d6)¸ a player to tell a story¸ the Game Master (GM) and 2 to 5 players to play the roles of the main characters¸ called Playable Characters (PC).
Although much different¸ it can easily be noticed that this game's mechanics are inspired by Apocalypse World (a RPG system you should check out right now) but in general A1 is a more collaborative focused style of game where anything can be played out. THIS TITLE CAN BE DOWNLOADED FOR FREE AT TARGETROLE.COM