Steve Jackson Games creates science fiction based wargames and strategy games. It was founded in 1980 by Steve Jackson.
Their best-known games include:
- INWO, Illuminati New World Order, the trading card game of world domination
- GURPS, the Generic Universal Role Playing System
- In Nomine, a game about Angels and Demons based on the popular French roleplaying game In Nomine Satanis / Magna Veritas
- The original Illuminati game on which INWO was based
- TOON, the cartoon roleplaying game
- Car Wars, about battle on the highways
- O.G.R.E, the classic simulation of future war