RTP Database - 33 Slots, 30 Tested, 4 Hidden

Every slot in this database has been checked at a real casino, in a real money session. We open the in-game paytable and record what it says. Providers publish a max RTP. Casinos choose which variant to run. This is what they actually chose.

By Marcus Reid · Last updated May 2026 · 2 casinos tested · 33 slots in database

Casino RTP Reviews How we test

18+ | Gamble responsibly | T&Cs apply

Database Snapshot - May 2026

33
Slots in database
30
Tested in-game
4
RTPs hidden
-3.99pp
Worst gap found
Biggest gaps - published max vs what the casino actually runs
Le Fisherman slot
1
Worst Gap #1
Le Fisherman
Hacksaw Gaming · Low volatility
Published max 96.33%
→
Tested at Pistolo 92.34%
Gap -3.99pp Pistolo Casino
Dorks of the Deep slot
2
Worst Gap #2
Dorks of the Deep
Hacksaw Gaming · Medium volatility
Published max 96.20%
→
Tested at Pistolo 92.21%
Gap -3.99pp Pistolo Casino
Le Zeus slot
3
Worst Gap #3
Le Zeus
Hacksaw Gaming · Medium volatility
Published max 96.26%
→
Tested at Pistolo 92.37%
Gap -3.89pp Pistolo Casino
Search
Volatility
Status
Showing 33 of 33 slots
Tested RTP Casino Review
Merge UpBGaming
 BGaming Very High 97.25% 94.25%
-3.00pp
 Wild Tokyo View →
Coin FlynnOnlyPlay
 OnlyPlay High 97.00% 94.00%
-3.00pp
 Pistolo View →
Big Bass BonanzaReel Kingdom
 Reel Kingdom Medium 96.71% 94.04%
-2.67pp
 Wild Tokyo View →
Gates of HadesPragmatic Play
 Pragmatic Play Very High 96.52% 94.47%
-2.05pp
 Pistolo View →
CultPragmatic Play
 Pragmatic Play Very High 96.51% 94.52%
-1.99pp
 Pistolo View →
Gates of OlympusPragmatic Play
 Pragmatic Play High 96.50% 94.50%
-2.00pp
 Wild Tokyo View →
Big Bass Mission FishinReel Kingdom
 Reel Kingdom High 96.50% Not tested View →
Cocktail Rush Buy BonusAmusnet
 Amusnet Medium 96.41% Pistolo View →
Le FishermanHacksaw Gaming
 Hacksaw Gaming Low 96.33% 92.34%
-3.99pp
 Pistolo View →
Luck of Panda Bonus ComboNetGame
 NetGame Medium 96.33% 96.33%
0.00pp
 Wild Tokyo View →
100 Golden Coins Reel FishingAmusnet
 Amusnet Medium 96.31% Pistolo View →
3 Crowns Coin HuntEvoplay Games
 Evoplay Games High 96.31% 93.84%
-2.47pp
 Wild Tokyo View →
Le CowboyHacksaw Gaming
 Hacksaw Gaming Medium 96.28% 94.31%
-1.97pp
 Wild Tokyo View →
Le ZeusHacksaw Gaming
 Hacksaw Gaming Medium 96.26% 92.37%
-3.89pp
 Pistolo View →
Demon QueenNowNowGaming
 NowNowGaming Medium 96.26% 94.41%
-1.85pp
 Pistolo View →
Supreme HotAmusnet
 Amusnet Medium 96.24% Pistolo View →
Le PharaohHacksaw Gaming
 Hacksaw Gaming Medium 96.21% 94.34%
-1.87pp
 Wild Tokyo View →
Dorks of the DeepHacksaw Gaming
 Hacksaw Gaming Medium 96.20% 92.21%
-3.99pp
 Pistolo View →
Tidal GoldNetGame
 NetGame Low 96.17% 96.17%
0.00pp
 Wild Tokyo View →
36 CoinsWazdan
 Wazdan High 96.16% Not tested View →
Fishermans LuckVoltent
 Voltent Medium 96.13% 94.16%
-1.97pp
 Pistolo View →
Vikings Go BerzerkYggdrasil Gaming
 Yggdrasil Gaming High 96.10% 96.10%
0.00pp
 Wild Tokyo View →
3 Witch PotsEndorphina
 Endorphina High 96.07% 96.07%
0.00pp
 Wild Tokyo View →
Coin Win Hold The SpinGamzix
 Gamzix Medium 96.06% 96.06%
0.00pp
 Wild Tokyo View →
Book of Rebirth ExtremeSpinomenal
 Spinomenal Unknown 96.01% Not tested View →
Cash of GodsEla Games
 Ela Games High 96.00% 95.40%
-0.60pp
 Pistolo View →
The Dog HousePragmatic Play
 Pragmatic Play High 96.51% 95.51%
-1.00pp
 Pistolo View →
Big Bass SplashReel Kingdom
 Reel Kingdom Very High 95.67% 94.60%
-1.07pp
 Wild Tokyo View →
Roaring FortiesNovomatic
 Novomatic Medium 95.48% Pistolo View →
Wild Wild GoldPopiplay
 Popiplay Very High 94.94% 93.94%
-1.00pp
 Wild Tokyo View →
Kings Mask Eclipse of GodsPlay'n GO
 Play'n GO High 94.28% 94.28%
0.00pp
 Wild Tokyo View →
Book of DeadPlay'n GO
 Play'n GO High 94.25% 94.25%
0.00pp
 Wild Tokyo View →
Its Shark TimeEla Games
 Ela Games Low 94.10% 95.20%
+1.10pp
 Pistolo View →
No slots match your filters.

How to Read This RTP Database

Every row in this table is a real in-game check. We opened the paytable on a live session and recorded the number. That is the RTP the casino is running - not what the provider says in a press release.

Two numbers matter most: Max RTP (what the provider publishes as the best possible setting) and Tested RTP (what we saw in the actual game). The Gap column shows the difference. A gap of -2pp means you get 2% less back than the max figure suggests.

What the gap colours mean

Red - badGap over -2pp. The casino is running a noticeably lower RTP than the published max.
Amber - okGap between -0.01pp and -1.99pp. Lower than max, but within a typical range.
Green - at maxThe casino runs the highest RTP variant the provider offers. Best case scenario.

Step-by-step: how to use this table

01
Pick a casino you play at

Use the Casino column to filter to Pistolo or Wild Tokyo. You can also type the casino name in the search bar.

02
Sort by Gap

Click the Gap header to sort smallest to largest. The worst-value slots rise to the top immediately.

03
Check Hidden entries

If a casino refuses to show the RTP in-game, the Tested RTP column says Hidden. That alone tells you something.

04
Click View for the full report

Each slot page shows the exact session date, the bet level tested, and a screenshot of the in-game paytable.

What Does the RTP Gap Actually Cost You?

RTP stands for Return to Player. A slot with 96% RTP returns £96 for every £100 wagered - on average, over millions of spins. Your session will not match that number exactly. But the setting the casino chooses sets the long-run ceiling.

Here is the problem. Providers publish a maximum RTP. Most games come in 3-4 variants: 94%, 95%, 96%, sometimes 97%. The casino picks which one to run. They almost never pick the highest.

Real example - Merge Up at Wild Tokyo. BGaming publishes a max RTP of 97.25% for Merge Up. Wild Tokyo runs it at 94.25%. That is a 3pp gap. On a £500 losing session, that gap alone accounts for £15 in extra losses compared to the max-RTP version of the same game.

That is why we check in-game rather than relying on published figures. The max RTP is real - but it may not be what your casino chose to run.

Slot Volatility Explained - Low, Medium, High, Very High

Volatility (also called variance) describes how a slot pays. It has nothing to do with RTP - a high-volatility slot can have the same long-run return as a low-volatility one. What changes is how that return is distributed across your session.

Low volatility

Pays out small wins often. Your balance moves slowly. Good for stretching a budget or clearing a bonus. Bankroll swings are small, but big wins are rare. Examples in this database: Le Fisherman, Tidal Gold, Its Shark Time.

Medium volatility

A middle ground. You will see moderate wins at a reasonable pace. Most casual players find this the most comfortable setting. It avoids the long dry spells of high variance without feeling like penny drops. Examples: Le Zeus, Demon Queen, Fishermans Luck.

High volatility

Wins come less often, but they are larger when they land. Expect long gaps between significant pays. You need a bigger bankroll to ride out the dry spells. The RTP still applies over millions of spins - but your session may end well before that evens out. Examples: Gates of Olympus, Big Bass Bonanza, Book of Dead.

Very high volatility

Extreme swings. You can lose your session stake in 20 spins - or double it. These slots are built around rare, massive hits. The average player will almost never see the top end of the pay table. Only play these if you are comfortable losing your full session stake before a win arrives. Examples: Merge Up, Cult, Big Bass Splash.

Our advice: If you are new to a game, start with low or medium volatility. Check the RTP in-game before you commit any budget. Use the filter above to find only the slots where your casino runs the max RTP variant - those are the best-value options available to you right now.

18+ Only - Gamble Responsibly

RTP figures are long-run averages. Your session outcome will vary. If gambling stops being fun, contact BeGambleAware or GamCare for free support.