Superworld was one of the earlier superhero RPGs, predating Marvel Super Heroes by a year. Like other Chaosium games (Call of Cthulhu, Runequest, etc), Superworld uses the Basic Roleplaying (BRP) universal rules set. It is actually the 2nd edition, as Steve Perrin expanded Superworld from the booklet of the same name in the Worlds of … Continue reading SUPERWORLD (1983): Chaosium’s BRP rules Super Hero RPG that inspired Wild Cards