Return to player as the sole yardstick for simple reels
Only slots that look and play the old way made it into this table: fruit, sevens, stars or a joker, no more than 40 lines and no jackpot tiers. That is merely the entry condition; the order is decided by a single column – the RTP the studio lists on its official site. A higher percentage means a higher place, and in a tie alphabetical order would settle it.
Why RTP? One studio describes volatility in words, another with a σ index and a third not at all, and the win cap is missing for half of the games. The return percentage is the only figure most of the ten share from the same type of source.
RTP measures how much of the money staked a slot pays back, according to its maths, over a very long stretch of play. It does not capture how often wins land, how high the cap is or how much fun the game is. A higher RTP does not mean you will win – the number only plays out across a huge number of spins.
Data as of 12 October 2026; every game was in the Dukat.bet lobby on that day.
Two Novomatic games have no public RTP – Greentube, which runs them online, does not state a percentage. We do not drop such rows: they go after all games with a known figure and are sorted alphabetically among themselves. The same rule applies across the whole site, and our methodology explains it in detail.
Ten old-school slots from 97.21% down
| # | Game | Studio | RTP | Volatility (studio’s scale) | Max win | Reels and lines | Source |
|---|---|---|---|---|---|---|---|
| 1 | Totally Hot | BGaming | 97.21% | Low | 2,500× | 5 reels, 10 lines, pays both ways | studio’s official site |
| 2 | Joker Pro | NetEnt | 96.80% | σ 8.4 → Medium | 1,000× | 5×3, 10 lines | studio’s official site |
| 3 | Hot to Burn | Pragmatic Play | 96.71% | not published | 1,000× | 5×3, line count not published | studio’s official site |
| 4 | Ultra Burn | Pragmatic Play | 96.62% | not published | not published | 3×3, 5 lines | studio’s official site |
| 5 | Fresh Fruits | Endorphina | 96.09% | Medium | not published | 5×4, 40 lines | studio’s official site |
| 6 | Joker Stoker | Endorphina | 96.07% | Medium-Low | not published | 5×4, 40 fixed lines | studio’s official site |
| 7 | Hell Hot 20 | Endorphina | 96.01% | Low | not published | 5×3, 20 fixed lines | studio’s official site |
| 8 | Five Star | Red Tiger | 95.20% | σ 15.07 → High | 2,000× | 5×3 | studio’s official site |
| 9 | Hot Chance™ | Novomatic (Greentube) | RTP not published (Greentube) | 3 (Greentube scale 0–5) | not published | 3 reels, 5 lines | not published |
| 10 | Sizzling Gems™ | Novomatic (Greentube) | RTP not published (Greentube) | 3 (Greentube scale 0–5) | not published | 5 reels, 5 lines | not published |
The source refers to the RTP that sets the order. For rows 9 and 10 it reads ‘not published’ – which is why they sit at the end.
From Totally Hot to Sizzling Gems, game by game
1. Totally Hot
BGaming lists a single version at 97.21%, low volatility and a 2,500× cap. Ten lines pay from left and from right; the studio has not published the number of rows. The game also appears in our ranking by volatility – it met the key of both tables, so it shows up twice.
2. Joker Pro
NetEnt, five reels, three rows, ten lines. A σ index of 8.4 falls in the Medium band on the studio’s scale, and the cap is 1,000×.
3. Hot to Burn
Pragmatic Play describes a ‘classic 5×3 grid’ but gives no line count. Star scatters pay anywhere on the reels. The 1,000× cap is published, volatility is not – PP’s game page lists only the RTP.
4. Ultra Burn
The smallest grid of the ten: 3×3 with five lines. The 96.62% RTP is the only number the studio attaches to it; you will find neither a cap nor a volatility rating.
5. Fresh Fruits
Endorphina, 5×4 and 40 lines – the upper limit we allowed. The studio labels its volatility Medium.
6. Joker Stoker
The same 5×4 grid with 40 fixed lines, just two hundredths of a percent behind Fresh Fruits. ‘Medium-Low’ volatility is an in-between grade other studios do not use.
7. Hell Hot 20
Twenty fixed lines on a 5×3 grid and low volatility. The studio states no overall cap; all that is known is that five scatters pay 500× the base bet – which is not the maximum win of a spin.
8. Five Star
Red Tiger, a 5×3 grid, σ 15.07, which puts it in the High band. Cap 2,000×. We deliberately leave out the line count: the figure on the studio’s page is open to more than one reading, and until we see it confirmed in the game rules, we set it aside.
9. Hot Chance™
Three reels and five lines. The Hot Chance™ feature is tied to nine matching fruit symbols across the whole grid. Greentube gives a volatility of 3 on a 0–5 scale, but no return percentage. In the lobby it appears as ‘Hot Chance’ without the suffix, tagged Nodemoplay – no demo.
10. Sizzling Gems™
Five reels, five lines and a Gamble feature for doubling wins. Volatility 3 according to Greentube, RTP not published, no demo. It trails Hot Chance™ purely on alphabetical order.
A hundred lines, jackpots and disco: why some games are missing
The lobby holds more fruit slots than fit into a top ten. Some fail the entry condition, others would break the logic of the table.
- Fruit Million and Hot Chilli Bells have 100 lines each, Juicy Fruits a 5×5 grid with 50 lines. The look is classic, the build no longer is.
- Hot Rocket 5x 3x 2x has five jackpots and Star Bell 7s uses the Cashpots jackpot mechanic. Point 2.15 in Dukat.bet’s bonus terms excludes ‘all jackpot slots’ from wagering, which is why our slot rankings leave them out.
- Fire Strike (Pragmatic Play, 96.50%) would slot in at fifth place. The studio’s description, however, mentions a ‘jackpot’ of up to 25,000×, and until it is clear whether this is a jackpot game, it stays in reserve.
- Gold Star is a disco theme, not a fruit classic.
- Wildfire and Miss Cherry Fruits (BGaming, 96.13%) were left out so the same titles do not repeat across too many tables. Miss Cherry Fruits is first in reserve.
- Always Hot by Novomatic is in the lobby, but Greentube only lists ‘Always Hot™ deluxe’. We have not yet verified whether they are the same game.
- Slots from Kalamba are absent because we could not load their data from the studio’s source by the table date.
Once an obstacle goes away, we will update the table and change the date.
What the percentage leaves unsaid on simple slots
The first problem is versions. Studios often ship the same game in several RTP configurations, the operator picks one, and the studio’s site usually shows just one. The version live on Dukat.bet can be checked in the in-game rules – and that takes precedence over our table. How to read the other columns is covered in the guide to the tables.
The second problem is the lobby. Hot Chance™ carries a ‘High RTP’ tag even though Greentube publishes no percentage at all – so the tag proves nothing.
The third problem is variance. A 5×3 grid looks harmless, yet Five Star sits in the High band on Red Tiger’s scale. A simple look does not mean a calm game.
Model calculation with invented amounts – not Dukat.bet data:
You play 400 spins at 0.50 EUR, 200 EUR staked in total. At 97.21% the theoretical loss is 5.58 EUR; at 95.20% it is 9.60 EUR. The 4.02 EUR gap is an average over an enormous number of such sessions. Any single one can end 60 EUR down or 80 EUR up, wherever the game stands in the table.
So the ranking describes the game’s maths, not your evening.
The slots offer and three rules that hold it back
For slot games Dukat.bet offers Slots Bonus – 500% up to 3,000 EUR + 15% Cashback. Three points of the general terms go with it.
Point 2.14: slots count 100% towards wagering. Point 2.7: while wagering, a default maximum bet of 5 EUR applies unless the offer terms say otherwise – and that includes gambling a win, which Sizzling Gems™, for one, lets you do. Point 2.15 lists excluded games and ‘all jackpot slots’; read the whole list before you play.
The ranking will not tell you whether a game is on the excluded list. That and other things to sort out before the first spin are gathered in the pre-play checklist.