Started 3 games, glitched into unplayability three times.
first time i had no miners anymore after transitioning to level 2, second time i made it to lvl2, but the items were unusable down there (the weights werent even clickable, the gambling machine took my hearts, played its anymation and then did nothing)
third playthrough, everything went greyish/darker (like a darker filter over the complete screen) after building the machine on the first floor, but nothign was clickable anymore.
Win10, FF48.02, flash and stuff is up to date (to lazy to check versions now)
i get 72h is -very- short for a game, yet alone one that looks so promising, but thats just unplayable...
hope that helps.