Moon Stair
Spoiler Warning: This article contains information normally only found in the course of advancing the main quest line.
The Moon Stair is a planned late-game region.
Developer Roadmap
The roadmap loosely sketches what the developers intend to add to the game.
In-game
The legends of Resheph and the story told by Elder Irudad both mention that the Girsh Nephilim were born on the Moon Stair. In From Entropy to Hierarchy, Q Girl mentions an artist who crafts "psionic crystal mazes" on the Moon Stair.