Realm of Chaos: Slaves to Darkness is the second album by British death metal band Bolt Thrower. It was recorded at Loco Studios in April 1989 and engineered by Tim Lewis. It was mixed at Slaughterhouse Studios in July 1989 and engineered by Colin Richardson. It is produced by Bolt Thrower and Digby Pearson. The cover artwork was produced by Games Workshop. The whole album is closely tied to Games Workshop's Warhammer 40,000 game background and Realm of Chaos: Slaves to Darkness was the title of a gaming book by Games Workshop released in 1988.