Why this jam?

TTRPGs (especially the OSR ones) are at their best when they’re shared.

Rules get hacked. Dungeons grow. Tables multiply.
A game stops being a book and starts being a living thing.

The Old School Rules Jam is a community jam focused on creating old-school fantasy RPG content: adventures, monsters, classes, tables, hacks, and strange little supplements meant to be played at the table.

The Common Ground

To keep everything compatible and truly communal, this jam uses Old School Rules as its shared foundation.

Old School Rules is a rules-light, CC0, OSR-inspired system designed to be 100% compatible with B/X and to be easy to learn, easy to hack, and free to use.

All submissions should be playable with Old School Rules, either directly or with minimal adaptation.

What You Can Submit

• Adventures and dungeon modules
  Monsters, classes, spells, items

• Tables, generators, and procedures

• House rules, hacks, and variants

• Zines, pamphlets, and micro-supplements

Polished or rough. Big or small. Weird is welcome.

Art & Licensing

Participants can freely use a pack of 52 free stock art pieces released specifically to support this jam.