I really enjoy this game. I've played many other games (so, so many!) that claim to be similar to this but I always get fed up with them because you 'run out of energy' and have to wait the entire day to be able to play again- unless you're willing to pay. Or the puzzles are ridiculous and make no sense, or they're way too complicated and pointless. I'm definitely going to be playing this for a worryingly long amount of time!