Golems are magically-created automatons of great power.
Golems stand apart from other constructs in the nature of their animating force—golems are granted their magical life via an elemental spirit, typically that of an earth elemental. The process of creating a golem binds the spirit to the artificial body, merging it with this specially prepared vessel and subjecting it to the will of the golem's creator.
Being mindless, golems do nothing without orders from their creators. They follow instructions explicitly and are incapable of complex strategy or tactics. A golem's creator can command it if the golem is within 60 feet and can see and hear its creator. If uncommanded, a golem usually follows its last instruction to the best of its ability, though if attacked it returns the attack. The creator can give the golem a simple command to govern its actions in his absence, or can order the golem to obey the commands of another, but the golem's creator can always resume control by commanding the golem to obey him alone.
The cost to create a golem includes the cost of the physical body and all the materials and spell components used in its creation. Each golem entry gives specific details on the materials required and the total cost for its creation.
Note: The market price of a golem with more Hit Dice than the typical golem described in each entry is increased by 5,000 gp for each additional Hit Die it possesses beyond the standard for its kind, and increases by an additional 50,000 gp if the golem's size increases. Building a golem with the advanced simple template increases its cost by 15,000 gp.
Additional Rules on Construct Creation can be located Building and Modifying Constructs page.