Location from Undertale / Deltarune by Toby Fox
The Cyber World's palace — a maze of rooms where Queen holds court, Swatch mixes drinks, and Noelle is held as an involuntary guest of honor.
Queen's Mansion is the final dungeon of Chapter 2, where the party confronts Queen's plan to create a new Dark Fountain using Noelle. The mansion houses the Color Cafe (Swatch's domain), various puzzle rooms, and the climactic confrontation. It is where Spamton once lived during his successful period before his fall. The mansion represents Queen's control — everything is arranged to her preferences, her subjects are positioned for maximum efficiency, and the entire structure exists to serve her vision of a 'perfect' world.
A grand digital palace at the top of the Cyber World — sleek, colorful, and vaguely unsettling in its luxury. The Color Cafe run by Swatch occupies part of the mansion. Rooms shift and rearrange. The aesthetic is 'computer desktop as architecture.'
Also known as: The Mansion