The primary setting of Tides of Annihilation is modern London, devastated by an otherworldly invasion from Avalon. Familiar landmarks and districts have been scarred and twisted by supernatural forces, creating a world where modern ruins coexist with medieval echoes.
World design
The developers describe London as:
"A sprawling battleground where modern ruins coexist with echoes of a medieval past. Imagine the city as a giant tree, its branches representing iconic districts and landmarks, each twisted and transformed by the otherworldly invaders."
The city is not an open-world sandbox in the traditional sense. It is structured as interconnected zones with non-linear exploration paths. Different London districts have been transformed in different ways, creating visual and gameplay variety as players move through the world.
Environments
Known environment types include:
Twisted urban streets where modern architecture merges with supernatural overgrowth
The London Underground, featured in the Year of the Horse promotional trailer
Rooftop and vertical areas accessible through platforming
Interior environments including the inverted library where the Mordred boss fight takes place
The Whitelands, a destroyed region formerly ruled by the White King
Colossal Knights in the landscape
Colossal Knights move through the London landscape, creating dynamic landmarks that can be seen from a distance. These towering entities add verticality and scale to the world, since players climb them as part of exploration and combat.
Fold realm sequences
Certain areas feature fold realm sequences where reality bends. These are platforming and combat sections inspired by Inception and Doctor Strange, where architecture shifts, gravity changes direction, and the environment actively transforms around the player. The Mirror Space Folded Realm created by Tyronoe is one confirmed example.