This article is about the Inactive Lava Zone Corridor. You may be looking for the Inactive Lava Zone, the Lava Lakes, or the Lava Castle.

The Inactive Lava Zone Corridor are mini-biomes which links the Lost River and Inactive Lava Zone together. There are two known in the game, one via the Mountains Corridor, and another via the Tree Cove.


The Inactive Lava Zone Corridors are characterized by large cavernous corridors of hardened lava. Veins of active lava can be found regularly, sometimes ejecting molten boulders. The Corridors continue well below all other biomes and converge into a central chamber. Resources such as Kyanite and Rubies are frequent in this biome which come in useful in Survival.

Warpers patrol heavily here.



  • There was once an Inactive Lava Zone Corridor that lead to the Deep Grand Reef, this has since been removed in the Infected Update.
  • There was once an Inactive Lava Zone Corridor that led to the Crash Zone, which was removed in the Ghost Update, and replaced with an Inactive Lava Zone Corridor located on the border between the Bulb Zone and the Mountains.