This robot paper model is a King Kriptor Experimental Assault Bot, a UEF unit from the real-time strategy (RTS) video game Supreme Commander 2. King Kriptor is a major experimental land unit, as well as a direct fire unit.
It is considered more as a fortress on legs rather than a bot. It is armed with a large arm-mounted 800mm DU Cannons, 3 Gauss cannons, A spinning carosuel of artillery cannons and pair of 2 Tactical missile launchers as well as a crown on its head, hence the name. [Source: wikia]
You can download this paper model template here: Supreme Commander 2 - King Kriptor Free Paper Model Download