Not to be confused with Atlas(Boss).
Atlas is a war mode biome similar to the the ocean that spawns after Wall of Steel have been defeated. It is usually beneath the dungeon or near the ocean biome. It cannot spread through biomes unlike the Corruption, Crimson and the Hollow. The Atlas is filled with water like the ocean and has a Atlas Temple at the bottom of the Atlas.
- Blue Merfolks
- Fishron's Servants
- Mermaids (or Mermans)
- Temple Guards (Atlas Temple)
Atlas temple is a building similar to the Jungle Temple (aka Lihzahrd Temple) and has a Atlas chest inside which always contains a Supicious Looking Shell and some other miscellaneous Items. There's no water inside the temple so you have some time to breathe.
- The Mermaids spawn your gender is male and Mermans spawn when your gender is female.
- The Merfolk families may drop Neptune's Shell.
- Mermaids (or Merman) might drop Supicious Looking Shell with a chance of 0.1%.