If you’re new to the online casino world, you may not yet know about the Return to Player (RTP) percentage offered in slot games.
In this article, we will discuss what the RTP is, how it’s calculated and some of the highest RTP slots.
What Is RTP?
RTP (Return to Player) is a theoretical percentage that indicates how much a slot is likely to return, on average, over a long period of play. It represents the portion of stakes paid into the game that is paid back as prizes.
For example, a slot with a 96% RTP would, in theory, return £96 for every £100 wagered. Similarly, a game with an 85% RTP would return £85 for every £100 wagered, on average.
RTP is calculated over hundreds of thousands or even millions of simulated spins. If you play for only a short time, the observed results may differ from the stated RTP; you might win more, win less, or win nothing at all.
Slot games use a Random Number Generator (RNG) to ensure each spin is unpredictable and independent. This randomness means that winning can never be guaranteed.
99% - the Highest RTP Slots
The average RTP for slot games is usually between 95% and 96%. Some slot games offer a higher RTP, and the current maximum commonly found is 99%.
A slot with a 99% RTP is the highest possible RTP rate on the market. That figure means the game has a higher potential payout percentage compared with the average.
Always remember that a 99% RTP does not guarantee a win. It describes the overall potential payout over time for that specific slot, not the outcome of any single session.
Best 99% RTP Slots List
Currently, few slot games offer a 99% RTP rate. A handful have stood out among players, so we list the most notable ones below.
Please note that the RTP mentioned in the games below can change at any time.
Mega Joker (NetEnt)
Mega Joker is a NetEnt slot with a 3x3 grid and a classic theme featuring fruit symbols. It has two different playing modes and a progressive jackpot. The game lacks extensive bonus features but offers a maximum payout potential of up to 2,000x your stake.
Book of 99 (Relax Gaming)
Book of 99 from Relax Gaming carries a 99% RTP rate and includes a Respins feature. It also offers Free Spins and expanding Wild symbols, which can help complete or create wins. The maximum payout potential reaches up to 5,000x your stake.
Jackpot 6000 (NetEnt)
Jackpot 6000 is another NetEnt title with an RTP rate of up to 99%. Its interface resembles a retro fruit machine and uses a 3x3 layout with five fixed paylines. The game includes a Supermeter bonus and a Joker symbol that can award up to 6,000x your stake.
Ooh, Ahh, Dracula (Barcrest)
Ooh, Ahh, Dracula is a 5x3 slot with 10 paylines and a 99% RTP. The game has a vampire theme presented without gore. Its symbols can award up to 5,000x your stake.
Monopoly Big Event (WMS & Barcrest)
Monopoly Big Event by Barcrest is modelled on the Monopoly board game and features similar graphics. It can reach an RTP of up to 99% and is played on 5 reels, 3 rows and 20 paylines. The game includes possible multipliers and a Free Spins feature.
1429 Uncharted Seas (Thunderkick)
1429 Uncharted Seas from Thunderkick has a 98.50% RTP, slightly below 99% but close enough to merit mention. This adventure-themed slot is noted for its detailed graphics and offers expanding Wild symbols. It also includes up to 50 Free Spins.
How Is RTP Calculated?
As mentioned, the RTP rate is calculated over time using a relatively straightforward formula.
The formula may look like this:
(Total Amount Returned / Total Amount Wagered) x 100
For example, say players have won a total of £9,500 on a slot machine in a specific period. In that same period the slot received £11,000 in bet amounts. Its RTP would be calculated as follows:
RTP = 9,500 / 11,000 x 100 = 86.36. Therefore, the RTP rate for this slot game would be 86.36%.
This example is a simplified illustration of the RTP calculation. In reality, several factors can affect the final RTP, including the volatility of the game and the behaviour of the RNG software to an extent.
Does Bet Size Affect RTP?
No. Bet size does not affect a game’s RTP.
For example, if you play a slot with a 96% RTP and place a £50 bet, the RTP stays at 96%. Increasing or decreasing your stake does not change that percentage.
Bet size only changes the absolute amounts you can win or lose because payouts are proportional to your stake. The RTP rate itself remains constant.
The Final Line
An RTP rate is a useful indicator of how a slot might perform in terms of potential payouts. Its accuracy becomes meaningful only after a long period of play.
Because results are produced by a random number generator, players may win frequently or not at all; outcomes remain random. Volatility also affects how often wins occur and how large they may be.
Please remember to always gamble responsibly.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.