Patent ID: 8328618

Claim:
A method for conducting lottery games at a retail establishment using non-transitory computer-readable media wherein players purchase goods or services, comprising: a player placing a wager that is a function of the purchase price of the goods or services purchased at the retail establishment, the wager automatically determined and presented to the player as the amount needed to round the purchase price to a defined value; conducting a lottery draw wherein the probability of winning the draw is a function of the amount of the wager such that for the same given prize amount in different lottery draws, wherein each lottery draw comprises a separate game, the probability of winning varies proportionally to the wager amount in a particular lottery draw; for a winning draw, awarding the player a prize that is a function of the purchase price of the goods or services such that the prize amount in any one of the separate lottery draws is a function of the rounded up purchase price; and for the same wager amount in different, separate lottery draws, the probability of winning also varies between different prize amounts such that the probability of winning in a particular lottery draw decreases as the prize amount increases.