2300 AD is a science-fiction role-playing game first published by Game Designers Workshop (GDW) in 1986 as Traveller: 2300. The game in fact had nothing to do with GDW's popular Traveller RPG, and when the system was revised in 1988 it was also re-branded as 2300 AD. The setting is an extension of the background of GDW's Twilight 2000 game, effectively showing what happened during the next 300 years. Mankind has started to spread into space, and faces its first major competition in the form of the Kafer.