Quick answer
Diamond Mystery – 81 Boosting Jokers is a Novomatic (Greentube) slot (2024) with 95.48% RTP and high volatility. It uses 81 ways with multipliers, wild symbols and gamble feature. An official free demo is available. RTP can vary by casino.
On this page10 sections
Key specs
- RTP
- 95.48%
- 0.56 points below the median (96.04%)
- Volatility
- High5 of 6 on our volatility scale
- Grid
- 4 reels
- Pays
- 81 ways
- Released
- 2 Oct 2024
Not published by the provider: max win, bet range, jackpot
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
Ad disclosure: we currently earn nothing from the brands listed; if that changes, each offer will say so. How we make money
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Key terms
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Key terms
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Key terms
- Cashback
- Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week.
Full T&Cs apply. Please gamble responsibly.
Game availability varies by casino and country.
Themes:
Part of the Diamond Mystery series.
Free demo Members
Try Diamond Mystery – 81 Boosting Jokers with play money before deciding whether to play for real. Official Novomatic (Greentube) demos are free for GambGenius members.
How to play Diamond Mystery – 81 Boosting Jokers (members only)
Instead of fixed lines, matching symbols on adjacent reels pay in any position, starting from the leftmost reel. The more matching symbols there are on each reel, the more ways the combination pays.
Diamond Mystery – 81 Boosting Jokers is played on a 4 reels grid with 81 ways.
- Set your stake. Choose your total bet per spin. 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 Diamond Mystery – 81 Boosting Jokers guide: how winnings work, 4 features and 3 strategy tips
- Your stake plan: a $50 budget → about $0.17 a spin (high volatility)
- What 95.48% RTP costs per $100 wagered: $4.52 on average
- 4 features explained: multipliers, wild symbols, gamble feature, pick bonus
- Stake plans for $20 to $250 budgets, checked against the $0.20 minimum bet
- 4 slots with the same style and a higher RTP (up to 98.12%)
- Strategy tips and a session planner for Diamond Mystery – 81 Boosting Jokers
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 95.48% 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 95.48% RTP means
Expected return = stake × 95.48%
Over $100 of total bets, the long-run average loss is $4.52
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)
4 features explained: multipliers, wild symbols, gamble feature, pick bonus
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.
Wild symbols
Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.
Gamble feature
After a win you can risk it on a double-or-nothing guess, such as the colour of a card. It does not improve the game's long-term return.
Pick bonus
A bonus game where you choose from hidden items to reveal cash prizes, multipliers or extra features.
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 95.48% RTP, clearing $1,000 of wagering costs about $45.20 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 $0.20 minimum bet
For high volatility we suggest a budget of at least 300 spins. This is what that means for Diamond Mystery – 81 Boosting Jokers.
| Budget | Stake a spin | Bet range | Average cost of 300 spins |
|---|---|---|---|
| $20 | $0.07 | Below the $0.20 minimum bet | $0.90 |
| $50 | $0.17 | Below the $0.20 minimum bet | $2.26 |
| $100 | $0.33 | Fits | $4.52 |
| $250 | $0.83 | Fits | $11.30 |
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 98.12%)
Slots with the same mechanic (ways to win) and volatility (high) as Diamond Mystery – 81 Boosting Jokers, with a higher published RTP. Casinos can still run lower versions of any of them.
Marching Legions98.12% RTP · +2.64 pts
Bomb Runner98% RTP · +2.52 pts
Carnival Cove98% RTP · +2.52 pts
Fire Rooster98% RTP · +2.52 ptsQuestions
Frequently asked questions
Who makes Diamond Mystery – 81 Boosting Jokers?
Diamond Mystery – 81 Boosting Jokers is developed by Novomatic (Greentube) and was released in 2024.
What is the RTP of Diamond Mystery – 81 Boosting Jokers?
The default RTP of Diamond Mystery – 81 Boosting Jokers is 95.48%.
Is Diamond Mystery – 81 Boosting Jokers high volatility?
Diamond Mystery – 81 Boosting Jokers is rated high volatility. High volatility concentrates the return in rare, large wins.
Can I play Diamond Mystery – 81 Boosting Jokers for free?
Yes. GambGenius members can play the official Novomatic (Greentube) demo of Diamond Mystery – 81 Boosting Jokers 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 Diamond Mystery – 81 Boosting Jokers have a bonus buy?
No bonus buy is listed for Diamond Mystery – 81 Boosting Jokers in the sources we checked.
Where this data comes from
- greentube.com Provider
- slotcatalog.com Slot database
Specs come from the provider's own site and 1 independent slot database. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © Novomatic (Greentube), shown to identify the game.
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