Cosmic Patrol
A sci-fi storytelling RPG of ""Rockets and Rayguns!"" set in a future based on the Golden Age of science fiction¸ inspired by E.E. ""Doc"" Smith¸ Harry Harrison¸ Robert Heinlein¸ and Philip Francis Nolan along with the radio series including X Minus One and Dimension X. The player characters are Patrolmen of the Cosmic Patrol. It uses a system of rotating GM (""Lead Narrator""). It uses a step-die system¸ where resolution is by the player rolling 1d12 plus the appropriate attribute die vs. the Lead Narrator's 1d20 roll. Attributes are Brawn¸ Brains¸ Charisma¸ Combat¸ and Special (defined as the character's specialty). Players may spend Plot Points to modify rolls¸ regain health points¸ or add a plot twist. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim