Underground

The Underground layer features 4 new enemies, as well as a shrine structure which contains Trinket of Chi.

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Underground
Characters	Unique Treasures	Unique Drops
Enemies: Amethyst Crawler Sapphire Crawler Topaz Crawler In Hardmode: Sun Bat	From Shrines: Trinket of Chi	From Amethyst Crawlers: Amethyst From Sapphire Crawlers: Sapphire From Topaz Crawlers: Topaz From Amethyst Crawlers, Sapphire Crawlers, and Topaz Crawlers: Scuttler's Jewel From Possessed Armors: Psychotic Amulet From Sun Bats: Essence of Sunlight From Sun Bats under Defiled Rune's effect: Hel-Fire	From terrain: Roxcalibur From Fishing: Spadefish

v · d · e Biomes and Structures
Biomes	Abyss • Astral Infection • Brimstone Crag • Sulphurous Sea • Sunken Sea Cavern • The Corruption • The Crimson • Desert • Dungeon • Glowing Mushroom • The Hallow • Jungle • Jungle Temple • Ocean • Space • Snow • Surface • Underground • The Underworld
Structures	Arsenal Labs • Evil Island • Planetoid • Shrine