Highest RTP Slot: Best Payout Real Money Online Slots Review

The highest RTP slot games provide more chances at winning, and there's no doubt that players at the best online casinos want to win more than they lose. This guide looks into slots with the highest RTP – short for return-to-player – and what that percentage means when playing legal casino games online.

Some of the best online casinos offer welcome offers for first-time players that include a no-deposit bonus. That allows new users to dip their toes into online casino waters without risking their own money right away. Here's a snapshot of the top bonuses with legal casino apps in Michigan, New Jersey, Pennsylvania and West Virginia.

When it comes to high RTP slot games, there are hundreds of online slots on casino apps, many of which combine entertaining gameplay and some of the highest RTP online slots in the industry.

Short for return-to-player, RTP often plays a significant role when choosing which online casino games to play. Essentially, RTP represents the projected percentage of wagered money a slot will return to players over a given period. The higher the RTP, the higher the chance of winning. As an example, consider Blood Suckers, one of the highest RTP slot titles around at 98%. That percentage indicates that the game will return $98 for every $100 wagered.

Take note, though, that the RTP rate does not guarantee users will win at that clip all the time. Rather, RTP is a theoretical percentage that is calculated over thousands of spins.

Generally speaking, slots with RTP rates of 96% or greater are preferable to most players, while titles with 98% RTPs or higher are considered the best for users.

High RTP slots, statistically speaking, are more favorable to players. Once again, though, RTP rates are not hard-and-fast and do not guarantee wins at the same frequency.

When reviewing the highest RTP slot games, it's important to remember that those rates are no guarantees of immediate or short-term success. Remember: RTP is based on thousands and thousands of spins; it reflects long-term return over many spins rather than session-based results.

Another thing to keep in mind is how the house edge is affected by RTP slot games. The higher the RTP, the lower the house edge. Remember, a slot with a 96% RTP suggests that for every $100 wagered, players will win $96, whereas a 99% slot indicates winning $99 for every $100 players bet.

The easiest way to determine an online casino's house edge with high RTP online slots is simply calculating the inverse of the RTP percentage: a 96% RTP slot has a 4% house edge, for example, while a 99% slot has only a 1% house edge. While higher RTP rates favor players, those slots pay out smaller winnings compared with lower-percentage RTP slots. Essentially, higher RTP slots improve the value over an extended gameplay experience rather than doling out big instant payouts.

All that said, some players may still experience big swings with some slots, which is due to those games' volatility rankings. Volatility measures the frequency and size of winnings experienced with online casino games. The higher the volatility, the larger the potential prizes, though wins come less frequently. On the flip side, lower-volatility slots traditionally have more wins but in smaller payouts. Usually, the highest RTP slot titles are lower in volatility.

For the most part, RTP matters for many players, not only because it helps them better manage their bankrolls but also because, over the long-term, they come out on top. High RTP slots are especially useful when users are working through playthrough requirements for online casino bonuses. 

As an example, the Borgata Casino promo code calls for players to satisfy a 15x playthrough requirement for deposit match casino credits, meaning if you receive $10 in casino credits, you will need to wager $150 before the bonus becomes eligible for withdrawal. By sticking with the highest RTP slot titles, over time, users are better able to satisfy those wagering requirements while also staying well within their budgets.

As it has been emphasized, the highest RTP slot titles typically pay out more frequently, but how does each level of RTP affect general gameplay? Generally speaking, casino games with the best odds reflect the house edge, which represents the casino's advantage built into games – something that users can also view as the "cost" of enjoying legal casino games online.

The higher the RTP slot, the lower the house edge is, which is why 99 RTP slots are so rare. With each level of RTP, there are some factors to consider, including:

For the most part, the higher range of RTP percentages falls between 96% and 98%. That said, on rare occasions, players may encounter some high RTP slots with rates of 99% or more. Yet not every online casino carries games with that high of a rate.

Notably, Mega Joker carries a 99% RTP, meaning that it theoretically pays out $99 for every $100 wagered. This slot, though, is found at only a select few casino apps, including bet365 Casino and by using the Caesars Palace Online Casino promo code.

More often than not, users will not find slots with 99% RTP or higher. Every now and then, however, they may come across them, like with Mega Joker.

There are a number of online casinos that are legal and offer high RTP slots. Below are the casinos with fast payouts that also offer some of the highest RTP slot games, along with welcome bonuses offered to new players:

This guide is a great start to finding the highest RTP slot titles available with legal and licensed online casinos in the US. Beyond that, though, there are several ways users can locate high RTP online slots.

Licensed casino apps and their approved game developers are required to provide RTP information to players, who can locate that info by clicking on the information section of a given title, which is represented by some variation of a question mark, three dots, or lines, or a lowercase "i." 

Some platforms, like bet365 Casino, allow customers to view their entire slot library, click "Filter" and then provide an RTP range that narrows down which of their games rank as the highest RTP slots. Often, too, users can find RTP rates at game developer websites, while online casinos sometimes release their own lists of slots with the highest RTP rates.

There is often a misconception that RTP is the same as volatility. While the two are connected in a way, they are not the same.

When looking at casino games online, users can view each title's RTP rate and volatility, which represents not only the game's win frequency but also the size of the payout. High-volatility slots offer larger winnings but hit less frequently, while low-volatility games offer more frequent, smaller wins.

With that in mind, while high-volatility slots could provide sizable winnings, they are riskier for players as their bankrolls could be reduced more quickly relative to games with lower volatility measures.

There is no correct answer to whether players should prioritize slots with the best RTP or games with higher volatility rankings. Like finding a game itself, it's all up to the preference and the bankroll of the player. If you want more wins, albeit with smaller payouts, high RTP slots are the way to go. But the biggest winnings will come with high-volatility slots, with the risk of winning far less frequently.

There are a number of reasons why players prefer high RTP slot games, but there are also some drawbacks to these online casino games that players should keep in mind.

Every online casino that is legal and licensed by state regulators in the US only earns that status by proving to officials that they provide not only strong security measures to protect users from potential fraudulent activity but also offers online casino games that are fair to players.

As such, online casino operators can only partner with game developers who are licensed and approved by the same state regulatory bodies, meaning any game that players find in online casino libraries is legal to play in states with licensed casino apps.

That means the highest RTP slot titles found at the likes of the BetMGM Casino app or with DraftKings Casino, for example, are legal to play and were found to be fair for online casino players.

The highest RTP slot found at the top online casinos mentioned and reviewed here is Mega Joker, which carries a 99% RTP rate.

High RTP slots pay out more frequently but in smaller amounts. The percentage is a representation of the theoretical payout for every $100 wagered, meaning Reel Rush – with a 97% RTP – expects to pay out $97 for every $100 bet.

They are extremely rare, but sometimes users can find 99% RTP slots at legal online casinos. Mega Joker, for example, is offered at Caesars Palace Online Casino and bet365 Casino.

Return-to-player rates are calculated not over a short period of time but rather over tens of thousands of spins, meaning the RTP found at a given game likely won't change much, if at all. That said, sometimes the RTP might shift by a fraction of a percentage based on the game's volatility.

No. Online casinos cannot change RTP on their slots, as that is determined by game developers.

High RTP online slots are offered at any of the legal and licensed online casinos that are mentioned and reviewed on this page

For the most part, slots with RTP percentages of 96% and higher are considered good for players, while titles with 98% RTP rates and up, while rarer, are considered elite percentages.

Yes. The highest RTP slot titles are expected to pay out more frequently but in smaller payouts. The percentage is a calculation of how much an online slot expects to pay for every $100 wagered. For example, with an RTP of 98%, Blood Suckers projects to pay $98 for every $100 bet.

While there are many renowned slot providers that put out high RTP slots, NetEnt has the most titles with high RTP rates, including: Mega Joker (99%), Blood Suckers (98%), Secrets of Atlantis (97.07%), Steam Tower (97.04%), Guns N' Roses (96.98%) and Blood Suckers 2 (96.94%).

Grant Lucas