A massive nether fortress-like cita...

A massive nether fortress-like citadel built from blackstone, basalt, and nether bricks. The structure has multiple levels connected by staircases, bridges, and vertical towers. Each level contains separate combat rooms, corridors, and lava-lit chambers. Some rooms are small and narrow, others are wide arena-style halls. Add lava streams, broken bridges, chains, and dark intimidating design.