Nightmare Realm

The '''Nightmare Realm''' is the reddish layer of Calus's mindscape that the Duality dungeon moves players into. Guardians shift between it and the Waking realm by shooting a Bell of Conquest, and the Cabal they face change with the realm: Loyalists in the Waking realm and Red Legion in the Nightmare realm.

Shooting a bell from outside its circle inside the Nightmare Realm collapses the realm and kills the player, so stand near the bell when it is shot. The realm also carries a Nightmare Collapsing debuff that lasts about a minute before it collapses on everyone inside; killing the Bellkeepers opens an escape route. The dungeon's Nightmare encounters, including Nightmare of Gahlran and Nightmare of Caiatl, run through this realm.