Biomes, underground regions, temples and unique environments.
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Most worlds begin in the Forest, a relatively approachable surface biome.
The first major mining layer below the surface.
A deeper layer with valuable resources and harder encounters.
Dry surface terrain and dangerous Underground Desert tunnels.
Cold surface biome and underground ice environments.
Dense surface plants and an especially dangerous underground ecosystem.
A purple world evil biome with chasms and Shadow Orbs.
A red world evil biome with caves and Crimson Hearts.
Large brick structure protected before defeating Skeletron.
Lava-filled bottom layer where Wall of Flesh is summoned.
A bright but dangerous Hardmode biome with its own enemies and items.
Crystal-rich cavern variant of Hallow in Hardmode.
Far-edge biome needed for some fishing and boss encounters.
Bioluminescent mushroom biome existing naturally underground.
Late-game Jungle structure associated with Golem.
Sky structures that can contain useful early loot.
Web-filled underground niches containing spider enemies.
A hidden world region associated with Shimmer.
Special surface biome formed through a meteor landing.
Distinct underground micro-biomes with themed enemies.
Independent Volpedia guide, not affiliated with Re-Logic or 505 Games. Schematic category graphics are original illustrations, not game screenshots or enemy sprites; the approved Volpedia cover and existing original Boss Atlas art are retained. Information was reviewed October 27, 2026 against the 1.4.5 update cycle; precise balance, drops, availability and platform details may vary. Sources are recorded privately in the editorial registry.