Underground Crimson
The Underground Crimson is a biome. It is the underground version of the surface-level Crimson, appearing at and below the Cavern layer. Just like the surface Crimson, it is mainly composed of Crimstone and spreads to nearby tiles. Although it is available in pre-Hardmode, most of its exclusive contents will only appear during Hardmode. After the Wall of Flesh is defeated for the first time, a diagonal stripe of Crimson is generated, creating additional Underground Crimson biome.
(Old-gen console and 3DS versions) Small pockets of Underground Crimson can be created through the breaking of Crimson Altars, which can convert a single random Stone Block in the world into Crimstone upon destruction.
The Underground Crimson does not suppress the spawn of other underground and cavern enemies. During Hardmode, all enemies killed in the Underground Crimson have a 1/5 (20%) / 9/25 (36%) chance to drop a Soul of Night.
Note: Most characteristics of the surface Crimson also apply to the Underground Crimson. See The Crimson for more extensive information.
Contents
Blood Crawler
Vicious Goldfish(Desktop, Console and Mobile versions)
Face Monster
Crimera
Brain of Cthulhu(boss)
Blood Jelly
Blood Feeder
Crimson Axe
Ichor Sticker
Floaty Gross
Crimson Mimic(Desktop, Console and Mobile versions)
Tainted Ghoul(Desktop, Console and Mobile versions)(Crimson Underground Desert)
Crimson Pigron(Crimson Ice biome)
Monster Meat(Desktop, Console and Mobile versions)
Bacon(Desktop, Console and Mobile versions)
Ham Bat(Desktop, Console and Mobile versions)
Pigron Kite(Desktop, Console and Mobile versions)(on Windy Days)
Pigron Minecart(Desktop, Console and Mobile versions)
Ancient Cloth(Desktop, Console and Mobile versions)
Dark Shard
Life Drain(Desktop, Console and Mobile versions)
Dart Pistol(Desktop, Console and Mobile versions)
Fetid Baghnakhs(Desktop, Console and Mobile versions)
Flesh Knuckles(Desktop, Console and Mobile versions)
Tendon Hook(Desktop, Console and Mobile versions)
Greater Healing Potion
Greater Mana Potion
Crimson Key(from any enemy, 1/2500 chance, only on (Desktop, Console and Mobile versions))
Crimson Key Mold(Old-gen console and 3DS versions)(from any enemy, 1/2500 chance)
Soul of Night(1/5 / 9/25 chance)
Crimstone Block
Crimsand Block(Underground Desert)
Hardened Crimsand Block(Desktop, Console and Mobile versions)(Underground Desert)
Crimsandstone Block(Desktop, Console and Mobile versions)(Underground Desert)
Red Ice Block(Ice biome)
Crimson Tigerfish
Hemopiranha
Bladetongue(Desktop, Console and Mobile versions)(Hardmode only)
Crimson Crate(Desktop, Console and Mobile versions)(Pre-Hardmode only)
Hematic Crate(Desktop, Console and Mobile versions)(Hardmode only)
Underground Crimson
Underground Crimson (Otherworldly)(Desktop, Console and Mobile versions)
Gallery
Backgrounds
This content is transcluded from Biome backgrounds § Underground Crimson.
On the Desktop version,
Console version, and
Mobile version, the following backgrounds are used. On the
Old-gen console version and Nintendo
version, the cavern layer background for any other biome the player is in is dynamically tinted red.
Blistered crimstone wall
(Crimson Ice) Bumpy red ice wall with Blood Jellies and eyeballs frozen within it.
See also
History
- Desktop 1.4.0.1: Added Otherworldy Underground Crimson track from the cancelled Terraria: Otherworld.
- Desktop 1.2.4: Now has its own specific theme music.
- Desktop 1.2.3: Added biome specific stalactite variations.
- Desktop 1.2: Introduced.
- Console 1.02: Introduced.
- Switch 1.0.711.6: Introduced.
- Mobile 1.2.6508: Introduced.
- 3DS-Release: Introduced.