Full pay is simply a term used to describe games that post high payout percentages. Payout percentages of full pay games range between 99% to even over 100%. In the past, paying full pay games was an aim for many video poker players due to the existence of short-pay machines – games with lower payback percentages.
Nowadays, however, there are games that surpass even the full pay metric. It is difficult to find them though as casinos don’t really advertise the payout percentages of all their games.