If you’re serious about getting the most value from your spins, choosing the right slot sites is just as important as choosing the right games. Not all sites offer the same Return to Player (RTP), and understanding how it works can significantly improve your long-term results.
RTPs Matter
Slots Temple: RTP Guarantee
There is one slot site in the UK with a ‘RTP Guarantee’: Slots Temple. Their guarantee is that they will never knowingly put a UKGC real money game live on the site that is not the highest RTP available.
To that end, Slots Temple will give you £50 for letting them know that another UKGC licensed site has a higher RTP. £50 will only be awarded if the RTP difference is at least 0.10% or more. For example a game they offer at 97.5% would need to have an RTP of 97.6% or more on another UKGC regulated site, for you to qualify for the £50 reward.
Starburst Example: 98.05% RTP
If you take NetEnt’s Starburst, there are 6 standard RTP settings. Slots Temple offers an exclusive 98.05% RTP rate: significantly higher than the highest setting of 96.09% available elsewhere. Below is a table showcasing all Starburst RTP variants, the slot/casino site edge and the theoretical number of spins before running out of funds.
I have calculated, with all the RTP variants, how many spins it takes to run out of money. This is based on theoretical losses (the slot site edge) per spin, a starting balance of £20 and a bet/stake size of 10p per spin (the minimum bet amount on Starburst).
| Starburst RTP | Found at | Theoretical Playtime | Slot Site Edge |
|---|---|---|---|
| 98.05% | Slots Temple | 10,206 spins | 1.95% |
| 96.09% | bet365 Casino | 5,090 spins | 3.91% |
| 95.05% | Casushi | 4,021 spins | 4.95% |
| 94.05% | MrQ/Casumo | 3,345 spins | 5.95% |
| 93.05% | Casino Kings | 2,864 spins | 6.95% |
| 92.05% | Duelz/PlayOJO | 2,504 spins | 7.95% |
| 90.05% | NA | 2,000 spins | 9.95% |
What this means
Playing at 10p a spin on Starburst will see you theoretically spin 10,206 times at Slots Temple. That’s significantly more than at other leading UK slot sites.
- 5,116 more spins than at bet365 Casino (96.09% RTP)
- 6,185 more spins than at Casushi (95.05% RTP)
- 6,861 more spins than at MrQ or Casumo (94.05% RTP)
- 7,342 more spins than at Casino Kings (93.05% RTP)
- 7,702 more spins than at Duelz or PlayOJO (92.05%)
Other Slots with Exclusive RTP Rates at Slots Temple
Slots Temple offers exclusive RTP rates on the following NetEnt slots:
| Slot Game | Slots Temple RTP | Highest RTP Elsewhere | Difference* |
|---|---|---|---|
| Dead or Alive | 98.05% | 96.82% | 4,388 extra spins |
| Twin Spin | 99.06% | 96.55% | 6,115 extra spins |
| Dazzle Me | 99.06% | 96.91% | 7,328 extra spins |
| Jack Hammer | 98.03% | 96.96% | 1,451 extra spins |
| Blood Suckers | 99.07% | 97.99% | 4,564 extra spins |
| Aloha! Cluster Pays | 98.01% | 96.42% | 4,442 extra spins |
*Difference based on a £20 balance at minimum bet
More Slots with High RTPs at Slots Temple
Below, you'll discover popular slot games available at Slots Temple with the highest RTP rates. You'll also find the lowest RTPs available on these games and the difference in extra spins you'll get by playing at Slots Temple:
| Slot Game | Slots Temple RTP | Lowest RTP Elsewhere | Difference* |
|---|---|---|---|
| Big Bass Bonanza | 96.71% | 94.5% | 2,430 extra spins |
| Book of Dead | 96.21% | 84.18% | 3,993 extra spins |
| Big Bass Splash | 96.71% | 92.05% | 3,545 extra spins |
| Fluffy Favourites | 95.39% | 93.29% | 536 extra spins |
| Le Bandit | 96.34% | 92.17% | 2,896 extra spins |
| Jammin' Jars | 96.83% | 94.24% | 1,405 extra spins |
*Difference based on a £20 balance at minimum bet
Why play at Slots Temple?
Free tournaments available daily to new & existing customers. Prizes paid as withdrawable cash. No deposit required - just join & play. #ad 18+. GambleAware. T&Cs Apply.
#ad. 18+, gambleaware.org, T&Cs Apply
Launched in 2025, Slots Temple has over 1,000 slot games from the top providers. Offering 24/7 customer support, quick verification and fast withdrawals, they focus on no deposit slot tournaments where real cash prizes are up for grabs.
Do Slot Sites Control RTP?
Here is something many players don’t realise or know: slot games are released with multiple RTP versions. If you take Pragmatic Play for example, they offer 3 RTP variants on their slots.
The slot site then chooses which version to run. That’s why two sites can host the same slot but offer slightly different RTPs. Sites with the best RTPs on slots typically:
- Operate in tightly regulated markets
- Avoid lowering default RTP settings
- Focus on player retention rather than short-term margin
- Promote transparency in game information
What is RTP and Why Does it Matter?
RTP (Return to Player) is the percentage of total wagered money a slot is designed to pay back over the long term. For example:
- 96% RTP slot: theoretically returns £96 for every £100 wagered
- 94% RTP slot: theoretically returns £94 for every £100 wagered
That 2% difference might not sound huge, but over thousands of spins, it makes a noticeable impact on your bankroll.
Important to remember: RTP is calculated over millions of spins. In the short term, variance (volatility) plays a bigger role. But over time, higher RTP games generally offer better value.
Want to pay the best RTP slots? Check out my guide to the top 10 RTP games which offer rates of up to 99.07%.
Highest RTP Slots & Best Payout Slot Machines
Final Thoughts
Finding sites with the best RTPs on slots isn’t about chasing unrealistic returns, it’s about stacking the odds slightly more in your favour.
- You can’t control volatility
- You can’t control the outcome
- But you can control the games and sites you choose.
Over time, even a 1-2% RTP difference can significantly affect your bankroll. Smart players focus on long-term value, not just short-term excitement. If you approach slot play with that mindset, you’ll be ahead of the vast majority of players.
