The Corrosion

The Corrosion is a hazardous surface biome with a yellowish acid theme. It's a counterpart of The Corruption and the Crimson, having a 33% chance to chosen for generation in a world. It has similar monsters, blocks, and items as its counterparts, but is unique in its own ways too. The Corrosion has slightly more powerful monsters than the Corruption, but has better loot.

The Corrosion has yellowish-brown grass and leaves with the trees having rotten wood. The Corrosion can extend into the Desert and the Snow biomes, which allows different monsters to spawn. The background has a foggy yellowish-brown tint with limited daylight.

The Corrosion has its own style of chasms. A typical Corrosion biome has three chasms in the shape of a two-armed claw. They are lined with Acidstone and small pockets of Aciditanium Ore, and leads to usually 5-6 Corroded Skulls in each chasm. Additionally, they have several Acidic Altars in these chasms and some exist outside the biome.

The Corrosion spreads like the Corruption and Crimson via corrupting uninfected grass. This process is sped up in Hardmode.