The GURPS (Generic Universal Roleplaying System) line, developed by Steve Jackson Games, offers a flexible and versatile ruleset for creating custom RPG campaigns. GURPS Cyberpunk, one of the earliest and most influential GURPS settings, was first published in 1989. The game is set in a dystopian future where corporations have replaced governments as the dominant world power, and players take on the roles of rebels, hackers, and mercenaries.