Really good concept!
I think you could polish it a bit more. Currently, I feel like there's very little time to put the prisoners back, especially when multiple escape at a time. Maybe if you could shorten what you need to type from "put x in cell x" to something like "john cell 14" it might help a bit, as well as making the prisoners a bit slower.
I really like the atmosphere and visual aesthetics. It feels very old school, and it is very well presented.
With a bit more polish and maybe some more mechanics to engage with this game could be great!
Keep up the good work!