A copper golem is a buildable passive mob that takes items out of copper chests and attempts to store them in nearby wooden chests and trapped chests. A chest must either be empty, or contain the item type the copper golem is holding, for the golem to place anything inside of it.

When idle, copper golems wander aimlessly while avoiding obstacles and environmental hazards. Copper golems can also open and close non-iron doors. They occasionally spin their heads or stare at players. They are completely passive to players and other mobs, and run around When in a body of water, copper golems sink to the bottom. They do not swim or drown, but they can still move laterally and step up full blocks as if they were on land, similar to iron golems and undead mobs. Like iron golems and snow golems, copper golems do not take fall damage. However, they still avoid walking off drops that would otherwise cause them harm. in a panic if attacked.