This is a simple clock running in a physics engine. It uses an anchor escapement with a pendulum for impulse control, and a mainspring for power, and a fusee to regulate the mainspring torque. This is the kind of setup you might see in a very old table clock. Unfortunately it's not very accurate - the physics engine doesn't work well with fine tuned engineering, so the gears are pretty rough and loose.
I've never seen actual simulated live clockwork, so I thought I'd give it a try.