The goal of this dungeon is to defeat the Overlord. Search Chests and break Blocks o' Bones to collect the loot stashed in them. Throughout the maze portion of the dungeon, there are many Chests and Blocks o' Bones left behind by long-dead adventurers. Magma Crawlers and normal Antlions can be found within this dungeon, as many spawners are present for both. The Antlion Overlord resides within the pyramid, however it prefers to mess with you-unlike the Tarantula Brood Mother, who can be found in straightforward Giant Baobab Trees.
Sometimes they are misleading due to how they spawn, they may appear entirely in an adjacent biome, with part of the maze beneath in a Volcanic Desert. The Antlion Overlord Pyramid is a large, partially underground (ignoring the fact that the entire Erebus is, technically, underground) structure in the middle of a fiery underground maze that is found rarely in Volcanic Deserts. The Four Special Capstones located at the top of the Antlion Overlord Pyramid.
The Antlion Overlord Waiting for a challenger in the center of the Pyramid. The Antlion Overlord Pyramid Underneath the Volcanic Desert.