I've always dreamed of a Jail RP that was actually a Jail RP(G). Not some dumb simon says stuff but something within the realm of how an actual prison would operate. There'd be a big open map that you could roam within, with different facilities for the prisoners. Throughout the day you'd engage in tasks that normal prisoners are expected to engage in like showering, eating, and lockdown, but there would also be free time where you're free to play basketball on the yard, work out, or do a prison-job like laundry or something.
All these tasks would amount to some kind of character progression, jobs = xp, working out = strength buffs and stuff, going to the library = intelligence buffs and stuff. Higher level prisoners would have cooler clothes and access to stuff like shanks and other weapons. Stronger prisoners would be scaled up and have better damage resistance/endurance and stuff. More intelligent prisoners could like hack into stuff and craft better weapons.
You could have something similar for the guards, even if it is a little simpler. Tasering and apprehending criminals w/o killing them = more xp whereas just killing a guilty prisoner offers lesser rewards, and killing innocent prisoners gives major penalties. Higher level guards get cooler guns and armor and stuff, eventually going from regular lousy prison guard to a badass riot cop, that sorta stuff. Your progress would always be persistent too, so you could work on your guard and your prisoner character in parallel if you wanted
I don't feel like that's too far out of reach. Idk, probably preaching to the choir here