this game is by no means a real challenge it relies on simple charm,its a match-3 game but it starts with an empty fish tank you must buy little fish first then pretty things to fill tank up and most important is the comfort of the fish things like food heat to keep it warm air to breath,it comes off as a kids game,but do not let yourself be fooled by this it very relaxing and plus its got cute fish to own as pets who among the playfirst gang never owned a goldfish as a kid i don't mean the lame ones you could win at the carnival either but the ones your folks bought for you at pet store for $60 including everything to care for said fish and food and the tank or fish bowl