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Very dark caves composed of guanostone, inhabited by cultist‑type mobs.
Hazardous, acid‑filled and radioactive environment.
Bright, ancient‑lush caves with prehistoric creatures.
Adds realistic and fantasy creatures like bears, orcas, Void Worm (boss), and Farseer, each with unique AI, drops, and behavior, making the world more alive and dynamic.
Dark, full of glowing neodymium and mechanical foes.
Whimsical sweet‑treat cave biome with candy themes and powerful foes.
Underwater cave biome beneath oceans, with deep‑sea monsters.

Massive New Minecraft Bosses and Structures.