A Warp rift is a weakening of the barrier between real space and the Warp, allowing its creatures to enter the material universe. Sometimes, Warp rifts occur randomly, while other times, the Chaos Gods or mortals manufacture them. Some last mere moments, others for days, years, or even centuries. They can take many forms, often a seething whirlpool of raw magic, other times they may show a glimpse into the realm of Chaos, they have also appeared as gates of green fire, clouds of impenetrable shadow, boiling lakes of pus, and other terrifying visions driving mortals mad. Examples that can induce a Warp rift include unpredictable movements of the Warp causing a break into real space, daemon possession of a mortal, deliberate rituals of daemon summoning, a focus of suffering and death from a great war, chance circumstances such as a Warp drive implosion, or most insidiously through the mind of an unprotected psychic creature.
Notable Warp Rifts
- The Eye of Terror - Formed from the birth of Slaanesh in the heart of the old Eldar Empire
- The Maelstrom
- The Great Rift - The largest Warp Rift ever observed, formed after the 13th Black Crusade at the end of the 41st Millennium.
- The Scourge Stars
- The Somnium Stars
- The Hadex Anomaly