Artemis Spaceship Bridge Simulator is an awesome game in which several people with several computers sit in a room together and take different roles on the bridge of a starship (Captain, Helm Officer, Weapons Officer, etc). The game runs on Windows. It can interface with DMX lighting using USB DMX controllers based on FTDI USB-serial chips, to do such things as turning the lights on the bridge red in a “red alert” situation.
I don’t have any DMX lights or FTDI chips, but I do have a smart light bulb from LIFX which is controllable over Wi-Fi. I’ve made this light bulb work with Artemis, although it’s a bit of a hack.