System for implementing a scratch-off lottery ticket game

A system to encourage play of scratch-off lottery tickets in a lottery comprising:

• a total set of scratch-off lottery tickets generated by the system for the game:
• the total set of scratch-off lottery tickets comprising a plurality of subsets of the lottery tickets arranged for sale by the system where the plurality of subsets comprises a series of at least three subsets including a first subset and at least two further subsets;
• wherein each of the scratch-off lottery tickets of the subsets has a purchase price determined by the system;
• each of the first subset and the further subsets having defined by the system the purchase price of the lottery tickets thereof such that each of the at least three subsets has a purchase price of the lottery tickets thereof which is different from the purchase price of the other subsets;
• the lottery tickets of each of the subsets having defined by the system to have a predetermined outcome of a set of prizes to be won in the lottery;
• substantially all of the lottery tickets of the first subset having defined by the system as said predetermined outcome thereof at least a minimum prize where the minimum prize has a value less than the purchase price thereof;
• substantially all of the lottery tickets of at least one of the further subsets having defined by the system as said predetermined outcome thereof at least a minimum prize where the minimum prize has a value less than the purchase price thereof;
• wherein the system arranges the purchase price of the tickets in the at least three subsets such that the purchase prices of the at least three subsets form a series of descending purchase prices;
• wherein the system is arranged such that the minimum prize of the lottery tickets of the first subset is related to the purchase price of the lottery tickets of the other subsets so that either the minimum prize from the lottery tickets of the first subset provides a value which is equal to the purchase price of one of the further subsets or the minimum prize of the first subset is equal to the sum of the purchase price of two or more of the further subsets.