i2c

I'd imagine this will take a lot of research to achieve and cost some to, as the games are either gonna need to be found and purchased to see what processes run on game time, or massive search of the internet.
That was my thinking, it is not going to be as simple as it might first seem? The controlling of usage between certain hours AND by user is an added complication.

Glad this project isn't in my inbox

EDIT: I guess that these days you would have to monitor for mice, joysticks and game controllers as well?