HARP SF

A science-fiction tabletop roleplaying system that adapts a streamlined fantasy ruleset to futuristic and interstellar settings. Players create characters using flexible classes and skills, resolve actions with simple mechanics for combat, movement and task checks, and advance through experience and career options. The rules support campaigns ranging from near-future planetary stories to long-running space opera, with guidelines for starships, alien species, technology and worldbuilding. Game masters use modular rules and optional subsystems to customize tone and complexity for their preferred scale of play.