Thank you! My motivation was definitely a spooky "remote control robot" game, and so i got to work building a console input system and a post process shader that simulates a sort of infrared camera. Hmm, yeah it seems like the door "closest" function is off by one, index of zero vs not and all that. My apologies. And absolutely would have implemented audio if I had a bit more time! Glad you enjoyed what there was, really appreciate your encouragement and feedback!