Out of curiousity (and perhaps also to amuse my students), I am looking for examples of actual mathematics appearing in video (computer) games. Of course that sort of mathematics would probably be very basic, but perhaps it still exists.
To clarify, I mean some use of mathematics in-game, as opposed to the design or programming of the game. I also prefer examples of games which are not purely puzzle games, but perhaps contain some puzzle solving. Nevertheless, such examples would also be interesting.
I hope this question is not off-topic. I was considering asking on Arqade SE, but I don't suppose there are many mathematicians there...
Thanks!