Are you farming the cockroaches for protein/milking them or something? I can’t fathom any other reason why anyone would want cockroaches other that these weird cases I read about on some science magazine.
Edit: just remembered they can be used as food for pets.
extreme loneliness meet cockroaches? Hmmm… Make it set in Cthulhu mythos, sprinkle some kafka metamorphosis and you got yourself a nice PS1 styled indie horror game.