Mr. Bells 40 by Endorphina: headline RTP 96.06%, High volatility.
An RTP of 96.06% means a house edge of 3.94% — the expected cost is 3.94 units per 100 staked over the long run, whatever a single session does.
Mr. Bells 40 is a high volatility game: the return arrives in rare, large payouts, so long dry spells are normal rather than a malfunction. Size stakes for the drought, not the average.
Against our catalogue the number is below the median of 96.13%, higher than 40% of the games whose RTP we verified. That comparison matters more than the raw figure, because "96%" only sounds generous next to nothing.
Released 2025-11-12. Release date matters for RTP: newer titles are more likely to ship with several configurable builds, which is what lets two casinos price the same game differently.
Mr. Bells 40 is one of 181 Endorphina titles in our catalogue, a studio averaging 95.96% RTP across the games we could verify.
See the full Endorphina game list and RTP breakdown.
This title is tagged Fruit. A theme is art direction, not maths — two games sharing every symbol can be priced differently.
Mr. Bells 40 has a published RTP of 96.06%, a house edge of 3.94%. We have not yet found a casino serving it at a different RTP build.
Yes. Mr. Bells 40 has a free demo with the same mathematics as the real-money version — the only thing that changes is that the balance is not yours. A demo cannot tell you the RTP build a particular casino serves.
Mr. Bells 40 is a Endorphina game, so the outcome is produced by the studio's certified RNG rather than by the casino, and it is not provably fair in the cryptographic sense — you cannot recompute a spin from a seed. What the casino does control is which RTP build it serves. That is the real variable, and it is measurable.