Automaton

The automaton is a mechanical construct, capable of moving on it's own. They are often depicted as "living" suits of armor.

Source
Automatons originate from greek mythology.

Media
Automatons appear in the following media:

Games

 * Titan Quest
 * Elder Scrolls game series. The Dwemer (or "Dwarves", a race, which suddenly disappeared in the world of the Elder Scrolls) created a lot of constructs, like the Dwarven Centurion or mechanical spiders.