Obligatory: But can it run Crysys?
That aside, you could use your CPUs to mine Litecoin. It's not worth much, but it may be more than what you'll earn CPU mining Bitcoin (though I may be wrong).
Ha! You know I have never even played that game,or many others for the matter.
I do like simulations though, like X-Plane across multiple monitors!
Hell, you can even cruise around Mars, LOL!
NASA has very exact data on the atmospheric pressure, density, and temperature on Mars.
NASA has very exact data on the gravity of Mars.
NASA has rough topographic maps for the entire planet of Mars, and very detailed data for some areas.
The laws of physics, which are programmed into X-Plane, are the exactly the same on Earth as on Mars.
X-Plane needs atmospheric pressure, density, temperature, gravity, and topographic maps to deliver an engineering-accurate flight simulation.
Enter a new level of flight simulation. X-Plane can simulate Mars.
But it's a trip to get used to, 1 percent(of Earth) atmospheric density, 1/3 the weight but with full inertia to deal with!