Eroded Tunneler

The Eroded Tunneler is an eroded version of the Digger, spawning in the Underground and Cavern layers after The Lost Siblings have been defeated. They will burrow through the ground very quickly, emitting a glowing trail from their head and tail segments and attempting to leap out at the player.

They drop many Erosion Samples on death, a crafting material that is required to battle Erazor.