Dear GM: Are you tired of naughty adventurers? If so, unleash Krampus on them. After those awful murderhobos have been stuffed in Krampus's wicker basket and baked into sinfully tasty meat pies, your campaign world will be a happier place. Gruß vom Krampus! includes four short PDFs, each one providing game statistics for Krampus for four different game systems: Dungeon World, Fate Accelerated Edition, the Pathfinder Roleplaying Game, and Swords & Wizardry.
Ho, ho, ho-zzah!