Quick answer
Mr. Bells 40 is a Endorphina slot (2025) with 96.06% RTP and high volatility. It uses 40 paylines with wild symbols, multipliers and hold and win. An official free demo is available. RTP can vary by casino.
Key specs
- RTP
- 96.06%
- Volatility
- High
- Grid
- 4×5
- Pays
- 40 paylines
- Released
- 2025
- Bet range
- $0.40–$100
Not published by the provider: max win, jackpot
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
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Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
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Key terms
18+. New customers only. Min deposit $20. No wagering on winnings. Free spins on Big Bass Bonanza at $0.10 per spin. Offer valid 7 days. Full T&Cs apply. Please gamble responsibly.
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Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
Free demo Members
Try Mr. Bells 40 with play money before deciding whether to play for real. Official Endorphina demos are free for GambGenius members.
How to play Mr. Bells 40 (members only)
Wins are paid when matching symbols land on an active payline, usually left to right starting from the leftmost reel. Your total stake is spread across the lines, and each line win is the line bet multiplied by the symbol's paytable value.
Mr. Bells 40 is played on a 4×5 grid with 40 paylines.
- Set your stake. Choose your total bet per spin between $0.40 and $100. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
The full Mr. Bells 40 guide: how winnings work, 3 features and 3 strategy tips
- Your stake plan: a $50 budget → about $0.17 a spin (high volatility)
- What 96.06% RTP costs per $100 wagered: $3.94 on average
- 3 features explained: wild symbols, multipliers, hold and win
- Stake plans for $20 to $250 budgets, checked against the $0.40 minimum bet
- 4 slots with the same style and a higher RTP (up to 99%)
- Strategy tips and a session planner for Mr. Bells 40
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.06% RTP costs per $100 wagered
Multipliers are applied to wins as they land; in many games several multipliers add together or multiply each other, which is where the largest wins come from.
What 96.06% RTP means
Expected return = stake × 96.06%
Over $100 of total bets, the long-run average loss is $3.94
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a high volatility game.
Features explained (members only)
3 features explained: wild symbols, multipliers, hold and win
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Multipliers
Multipliers increase a win by a set factor, such as 2x or 10x. They can be attached to symbols, applied to a whole spin, or grow during a feature, and are a main driver of the biggest wins.
Hold and win
Landing enough special cash or coin symbols starts a respin feature: those symbols lock in place, the respin counter resets each time a new one lands, and their values are collected when the feature ends.
Strategy tips (members only)
- Size your stake to the volatility. High volatility concentrates the return in rare, large wins. Long losing runs are normal. Keep stakes small (around 1% of your session budget or less) so you can ride out the swings. A simple rule: bring at least 300 spins' worth of budget, so a $50 budget suggests a stake of about $0.17.
2 more tips and a session planner
- Bonus wagering: at 96.06% RTP, clearing $1,000 of wagering costs about $39.40 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets, checked against the $0.40 minimum bet
For high volatility we suggest a budget of at least 300 spins. This is what that means for Mr. Bells 40 (bets from $0.40 up to a maximum bet of $100).
| Budget | Stake a spin | Bet range | Average cost of 300 spins |
|---|---|---|---|
| $20 | $0.07 | Below the $0.40 minimum bet | $0.79 |
| $50 | $0.17 | Below the $0.40 minimum bet | $1.97 |
| $100 | $0.33 | Below the $0.40 minimum bet | $3.94 |
| $250 | $0.83 | Fits | $9.85 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
Same style, better RTP (members only)
4 slots with the same style and a higher RTP (up to 99%)
Slots with the same mechanic (paylines) and volatility (high) as Mr. Bells 40, with a higher published RTP. Casinos can still run lower versions of any of them.
Mega Joker99% RTP · +2.94 pts
Jackpot 600098.9% RTP · +2.84 pts
Three Musketeers98.18% RTP · +2.12 pts
Wizards Want War!98.1% RTP · +2.04 ptsQuestions
Frequently asked questions
Who makes Mr. Bells 40?
Mr. Bells 40 is developed by Endorphina and was released in 2025.
What is the RTP of Mr. Bells 40?
The default RTP of Mr. Bells 40 is 96.06%.
Is Mr. Bells 40 high volatility?
Mr. Bells 40 is rated high volatility. High volatility concentrates the return in rare, large wins.
Can I play Mr. Bells 40 for free?
Yes. GambGenius members can play the official Endorphina demo of Mr. Bells 40 free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does Mr. Bells 40 have a bonus buy?
No bonus buy is listed for Mr. Bells 40 in the sources we checked.
Where this data comes from
- endorphina.com Provider
- endorphina.com Provider
Specs are as published by the provider. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © Endorphina, shown to identify the game.
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