he Moleworm is a passive Mob in the Reign of Giants DLC. They are indigenous to the Grasslands and Deciduous Forest Biomes. Moleworms live in a Burrow, underground, but can occasionally spawn from Tumbleweeds and Earthquakes.
Moleworms travel underground similar to a Depths Worm. They will seek out and collect items that are lying on the ground, including Minerals, Thermal Stones, Charcoal, Ashes, Gunpowder, Ice, Old Bells, most Turfs, and most Gravedigger Items. After collecting 2 stacks of items, they will return to their Burrow to drop them off.
A live Moleworm can be obtained by attacking it (one time) with a Hammer, after it surfaces. Moleworms will slowly starve in the inventory, if not fed minerals. They respawn from Burrows (similar to Rabbits). A Burrow can be permanently destroyed using a Shovel. Burrows drop minerals and any items that a Moleworm has stashed inside it. If a Burrow is destroyed before killing the Moleworm, it will wander off and eventually dig a new one.
Moleworms have the same health as Rabbits and can be killed with a single hit from an Axe or Pickaxe when wielded by characters with normal damage multipliers. Wendy and Wes must wield a Spear or better to kill it in one hit.