Are you a consistent and long term winner at these games? Therefore the casino can earn the same amount of money on a large denomination slot game at a lower win rate as they can at a penny slot gamewith a higher win rate. The highest jackpot hit was from may 2013 and it was almost 18, 000, 000 euro (video below). No, they do not payout as well they pay better. Losing every now and then is simply part of the game. There have been numerous books written that state that casinos place their better paying machines in strategic locations in order to draw players into the casino. Playing in online casinos can be fun, but it is not possible to win all the time. I am making a beeline for that machine when they get. Who knows, you could be one of our next Mega Fortune winners. Because if their average payout is 97 and the have a few 99 payout machines, this means they also have slot machines that payout at less than. If a casino advertises our slots pay off at 97, this means that all of their slot machines pay off at 97 or better. Each casino sets their slots payout percentages where they want them and they are all different. They almost always gamble and are happy to share their knowledge. My goal with this website is to create a guide to slot machines and have a little bit of fun along the way. Gaming Revenue Report on the website of the Nevada State Gaming Control Board.