What is RTP?
If you’ve ever spun the reels of an online slot machine, you’ve most probably come across the term RTP. Even if you’re not entirely sure what it means, the return to player percentage (RTP) is an important factor when it comes to casino gaming.
To fully understand just how important RTP rates are, all you really need to know is that they are strong indicators of the profit margins enjoyed by gambling houses. To get an idea of an individual casino’s margin for a particular game, you simply need to subtract 100% from its RTP rate.
What Does Return to Player (RTP) Mean?
Return to Player, usually shortened to RTP, is the theoretical percentage of money a casino game is designed to pay back to players over a very large number of rounds. For example, a slot with a 96% RTP is designed to return an average of £96 for every £100 wagered over the long term. The remaining percentage represents the house edge.
RTP is useful because it helps players understand the mathematical profile of a game, but it should never be read as a short-term promise. Slot results are random, and the actual outcome of any single session can be very different from the published RTP. A player may win, lose part of their balance, or lose their full stake.
To use Mega Moolah as an example, the game is commonly listed with a total RTP of 93.42%, including the progressive jackpot contribution. Some sources may show a lower base-game figure, such as 88.12%, when the jackpot contribution is treated separately.
In practical terms, a total RTP of 93.42% means that, over millions of spins, the game is designed to return an average of £93.42 for every £100 wagered. That does not mean a player should expect to receive £93.42 back each time they play £100. Mega Moolah remains a random jackpot slot, and its largest prizes are rare by nature.
When comparing casino games, a higher RTP can be a useful factor, but it should not be the only one. Volatility, jackpot structure, stake size, bonus terms and personal budget all matter too. The safest approach is to treat RTP as guidance, not a guarantee, and to play only with money you can afford to lose.
How to Calculate the Return to Player Percentage?
Calculating the RTP percentage is much more straightforward than you might think. You simply divide the overall amount won by players on a particular game by the total amount they have bet. You may be surprised to discover that the figure isn’t calculated on the history of a specific game. Rather, it is determined by computer algorithms that spin the reels or play rounds hundreds and thousands of times during a specific period. This provides the most accurate measurement while still replicating the experience of countless casino players.
However, the return to player percentages of certain casino games are slightly more challenging to calculate. In table games like roulette and blackjack, the RTP depends on the wagers or betting strategies employed by players. For example, in blackjack, a highly skilled game, inexperienced players who get higher hand totals can bring down their own return percentages. Take a look below at the average RTP percentages for some popular casino games.
- Slot Games: from 85% to 99%
- Classic Roulette: 97.3%
- Classic Blackjack: 99.4%
- Video Poker: from 95% to 99.5%
RTP Rates for Mega Moolah Slot Machines
RTP percentages for the Mega Moolah slot machine series are certainly not high! The main attraction of these games is the chance to win a life-changing jackpot. Depending on which Mega Moolah game variation you are playing, the RTP displayed is not always the same. The difference lies in the chances of winning jackpots on the non-progressive bases of the different slot machines. In terms of the winning odds for bonus wheel progressive jackpots, the RTP rate remains the same on all Mega Moolah game variations in the series.
Displaying RTP rates
In a land-based casino, slot machine RTP rates are indicated on a sign placed next to the machine. In an online casino, the information is displayed in a window that can be viewed using the game’s help menu. To ensure the authenticity of the rates displayed, the Gambling Commissions are responsible for verifying all information on display. Any fraudulent activity by gambling house operators may be punishable by huge fines or even imprisonment. You can therefore rest assured that you are viewing reliable data.
For table games such as blackjack and roulette, RTP rates are defined by the governing game rules. This information is made available to casino customers upon request. For online casinos, this information can be consulted via the games’ help menu.
Conclusion
An RTP casino game percentage is a convenient tool for any gambler. Finding the best return- to-player slot machines can give you more time to enjoy the game. On the other hand, don’t forget that the gambling house will always have the upper hand. Furthermore, the bigger the RTP, the less money you can win. Typically, slot machines with a 99% RTP rate will never give you the chance to win a big jackpot.
Last Updated on June 1, 2026 by Sebastien