Endorphina

Mr. Bells 40

Play Mr. Bells 40 slot by Endorphina for free in demo mode! Explore RTP, bonus rounds, and key features before playing for real.

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SlotRanker Score

/ 99

05099

The SlotRanker Score is calculated from the visible data below. It is not affected by affiliate deals or paid placement.

How this score is built

RTP

96.06%

return to player

Volatility

High volatility

variance

Max win

—

top multiplier

Min bet

$0.40

per spin

Reels

40 lines

Player rating

4.2 ★

10 votes

DEMO Play free, no signup

Endorphina

4.2 / 5

10 ratings

User ratings are shown separately from the Slot Score unless stated otherwise.

Five weighted signals shape the composite. Four context signals refine ties. See how we rate for the full methodology.

Payouts & RTP9/10

RTP 96.06% → 9.0/10

Volatility9/10

high → 9.0/10

Win Potential—

no data

Features5.5/10

6 features → 5.5/10

Game Mechanics5.8/10

f=6 r=5 p=40 → 5.8/10

Context signals (tie-breakers)

Layout5/10

5x4 → 5.0/10

Bet Flexibility6/10

0.4–100 (×250) → 6.0/10

Provider Reputation6.6/10

provider avg 6.6 → 6.6/10

Popularity6.7/10

synthetic proxy → 6.7/10

Popularity blends real player search demand (~30 markets) with a catalogue-derived proxy; games without measurable search demand use the proxy alone. Not live play telemetry.

Cite this score

SlotRanker Score: 72 — Mr. Bells 40 by Endorphina

https://slotranker.com/endorphina/mr-bells-40#score

How to cite

Spec sheet

Mr. Bells 40 at a glance.

Identity

Slot nameMr. Bells 40

StudioEndorphina

Released11/11/2025

Math

SlotRanker Score72

RTP96.06%

VolatilityHigh volatility

Max win—

Bet range$0.40 – $100.00

Player rating4.2 / 5 · 10 votes

Format

Reels5

Paylines40

Layout5x4

Features

Themes

Expected average based on this slot's 96.06% RTP — individual sessions vary with volatility.

Bet per spin

Spins per hour400

Session length (hours)

Cost per hour$6.30

Cost per session$6.30

Estimate only, for entertainment purposes — treat gambling as entertainment, not a way to make money, and set a budget you can afford to lose.

How long could a bankroll last on Mr. Bells 40? We simulate thousands of sessions from this game's published RTP and volatility — the long-run math, not a prediction of your next spin.

Bankroll ($)Bet per spin ($)Speed

Volatility tier: High

Running simulation…

How this works

Each simulated spin either misses or returns a win drawn from a log-normal distribution, with the hit rate and spread set by the slot's volatility tier (High). The model is calibrated so the average return equals this slot's published RTP (96.06%), with wins capped at its top multiplier (1,000×).

This is a simplified, parametric model of the game's math — not its real paytable. It exists to make the house edge visible over many sessions, so the numbers above are averages across thousands of runs, never a forecast of one.

This is math, not a prediction. Real sessions vary wildly, and no strategy changes a game's built-in house edge. Play for fun, set limits, and never bet more than you can afford to lose.

Compare Mr. Bells 40 with other games

	Mr. Bells 40 Score 72This game	Kawaii Neko Score 92	Serpentina Score 91	Hop N Pop Score 90	Ruby Royal Score 89
Identity
Studio	Endorphina	Naga Games	Massive Studios	Hacksaw Gaming	Popiplay
Released	11/11/2025	12/25/2022	3/20/2025	6/1/2021	11/15/2024
Math
RTP	96.06%	97.16%	96.53%	96.2%	97.11%
Volatility	High volatility	Medium/High	High volatility	High volatility	High volatility
Max win	—	—	30,000×	12,500×	10,100×
Format
Reels	5	6	7	7	5
Layout	5x4	6x5	7x7	7x7	5x3
Paylines	40	32400	—	Cluster pays	15
Min bet	0.40	0.10	0.10	0.20	0.10
Max bet	100.00	200.00	100.00	100.00	20.00
Features
Progressive	—	—	—	—	—
Wild symbol	✓	✓	✓	—	✓
Free spins	—	✓	✓	✓	✓
Scatter symbol	—	✓	✓	✓	✓
Multiplier	—	✓	✓	✓	✓
Bonus game	✓	—	—	—	✓
Respins	—	—	—	—	✓

Every number is shown as a delta against Mr. Bells 40.

Comparing against

Mr. Bells 40

Endorphina

RTP

96.06%

Max win

—

Score

+ Free Spins+ Scatter+ Multiplier− Bonus Game

+ Free Spins+ Scatter+ Multiplier− Bonus Game

+ Free Spins+ Scatter+ Multiplier− Wild− Bonus Game

+ Free Spins+ Scatter+ Multiplier+ Respins

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