The Demon Castle was a S-Rank instant Dungeon created by the Architect and inhabited by Demons.
Overview[]
The Demon Castle appeared as a destroyed version of Seoul littered with ruined buildings and set on fire. It had a total of 100 floors and four bosses. As later revealed by the Shadow Monarch Ashborn, the Demon Castle's appearance is actually based off a version of Seoul from an alternate timeline in which the war between the Rulers and the Monarchs devastated the human world and wiped out mankind.
Bosses[]
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| E-Rank | Hapjeong Subway Station | |
|---|---|---|
| C-Rank | Goblins Dungeon | Insects Dungeon | |
| A-Rank | Red Gate Incident | Hunters Guild Gate | Busan A-Rank Gate | |
| S-Rank | Cartenon Temple | Demon Castle | Pyramid Field | |