believe it or not that's something i kept in mind! My approach was to set a hard limit of time on the game experience, every run is lost or won in less than 5 minutes to have hard stops that manage addiction to grind. I'd be surprised if anyone manages to spend more than 1h on this game there's just not that much in it. Though ofc if I discover that the counter measures arent working i'll work on new ones, we don't want the experience to be negative. In a way "coin addiciton is dangerous" is more or less the message of the game so your concern is definitely warranted!