In a slot forum, a conversation was going on about slot paybacks and how online slots payback sometimes differs from physical slot machines. Then someone asked a question about physical slots: Do the odds or payback of a slot game differ from one state to another?
STATUS: Not often, but it can happen.
As written here in the past, when designing a slot machine, manufacturers and designers build games to satisfy multiple markets – being able to develop a game that can sell in a variety of places is just good business sense.
That said, there is precedent for marginal differences between versions of a game. The original Buffalo game was tweaked because in some states there’s a requirement of having minimum odds of reaching the top prize, something that wasn’t satisfied in the way one version of the Buffalo game was designed. So they tweaked the reel sets to make sure the game satisfied that requirement.
That said, those scenarios are likely not very frequent, so it’s safe to assume if you’re playing a Class III (Vegas-style) slot machine in a Class III market, the vast majority of the time the only potential difference will be if a casino selected a different payback percentage over another.
However, don’t forget just because you see the same slot theme, it doesn’t mean it’s exactly the same game either. If you go to a market that has Class II (Bingo machine) games, even though the machine and game may look the same, it will probably function differently because the way outcomes are determined function differently. Same goes for other types of slot-like machines such as Video Gaming Machines and Video Lottery Terminals, or Historic Horse Racing Machines.