Farkle Rules

Farkle is sold as a commercial game that includes dice and cups. It is actually a folk game that has been known under various names, such as Cosmic Wimpout, Hot Dice, Greed, Zonk and Darsh. There are a wide variety of variations, but the basic rules are here.

You could buy the commercial version, however, most gamers have all the dice needed at home.

Source: miniaturewargaming.com