The One-Page RPG Jam is an annual game jam hosted on itch.io, which gives entrants just over a month to create and publish a tabletop role-playing game that fits on a single sheet of paper. The rules of the jam require submissions to be fully playable games on a single sheet of A4 or US Letter, although ‘backpages’ for extra Games Master tables and rules are allowed, as well as separate character sheets if required.
It runs until 21st August and is open to everybody.