Hardstone Boulder

The Hardstone Boulder is a very rare obstacle on the map. They can only be broken with a Stone Hammer. They were added on December 31st, 2018 in the Frozen Deserts update. They appear on the map as small, very dark circles. Very few, usually about two or three, spawn per game. They can easily be confused on the map with barrels or rocks. They give very good loot, even rare items that can otherwise only be found in Golden Airdrops.