Crazy Yatzy is Yahtzee with all the catagories you have longed for. Built upon the scandinavian version of Yahtzee Crazy Yatzy includes, among others: Almost a pair, Almost three of a kind, Another chance, yet another chance and CRAZY. The last one is thrown with the eyes closed, and then you have to either trust, or distrust which dice your fellow players tell you to reroll. Note that Alga also published another Yahtzee variant under the name Crazy Yatzy which included dexterity elements, nonsensically named categories and so on.