Ruttigers Almanac is an OSR-compatible tabletop roleplaying game system that combines frenetic, fun mechanics with a clutch of mini-games to bring chaos to your table, alongside an expansive setting to explore and plunder.

An official OSE supplement of demons, cults, and dark magic.

The forge of fantasy role playing, Gary Gygax's legendary dungeon and its environs. Here begins the journey into depths never before reached.