Space Hulk is set in the Warhammer 40k universe. 40k is set in the far future where mankind has settled a large portion of the galaxy under the banner of the God-Emperor. The God-Emperor sits upon his Golden Throne above the pillars known as the Space Marines – Elite units of the Imperium of Man. Space Marines are split into Chapters, which were founded by the Primarchs. Each Chapter has a home planet. The events of Space Hulk take place near Baal, the home planet of the Blood Angels.