Quick answer
40 Extra Crown Buy Bonus is a Amusnet (EGT) slot (2025) with 96.08% RTP, high volatility and a 5,000x max win. It uses 40 paylines with bonus buy, free spins and expanding wilds. An official free demo is available. RTP can vary by casino.
Key specs
- RTP
- 96.08%
- Volatility
- High
- Max win
- 5,000x
- Grid
- 5×4
- Pays
- 40 paylines
- Released
- 26 August 2025
- Jackpot
- Progressive
Not published by the provider: bet range
Top-rated casinos (check the game is available)
We haven't confirmed which partner carries this game.
- Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonusGet 200 spins + 100% at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
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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18+. New customers. Min dep $20. No wagering. 7 days. 150 spins on Big Bass Bonanza at $0.10. Full T&Cs apply.
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.
- Kronos Royale200% up to $2,000 + 10% weekly cashback40x bonusGet 200% bonus at Kronos Royale (opens in new tab)
18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
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:
Part of the Extra Crown series.
Free demo Members
Try 40 Extra Crown Buy Bonus with play money before deciding whether to play for real. Official Amusnet (EGT) demos are free for GambGenius members.
Play the 40 Extra Crown Buy Bonus demoOfficial demo by Amusnet (EGT) · play money only · 18+Opens on Amusnet (EGT)'s demo siteHow to play 40 Extra Crown Buy Bonus (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.
40 Extra Crown Buy Bonus is played on a 5×4 grid with 40 paylines.
- 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.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
- Optional bonus buy. Where permitted, pay a fixed price to start the bonus directly.
The full 40 Extra Crown Buy Bonus guide: how winnings work, 6 features and 5 strategy tips
- Your stake plan: a $50 budget → about $0.17 a spin (high volatility)
- What 96.08% RTP costs per $100 wagered: $3.92 on average
- 6 features explained: bonus buy, free spins, expanding wilds, wild symbols, gamble feature and 1 more
- Bonus-buy risk breakdown
- Stake plans for $20 to $250 budgets
- 4 slots with the same style and a higher RTP (up to 99%)
- Strategy tips and a session planner for 40 Extra Crown Buy Bonus
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.08% RTP costs per $100 wagered, the 5,000x max win at a $1 stake
The top prize is capped at 5,000x your stake. On a $1 spin that is $5,000; on $0.20 it is $1,000. When the cap is reached the round usually ends immediately.
What 96.08% RTP means
Expected return = stake × 96.08%
Over $100 of total bets, the long-run average loss is $3.92
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)
6 features explained: bonus buy, free spins, expanding wilds, wild symbols and more
Bonus buy
Lets you pay a fixed multiple of your stake to enter the bonus feature straight away instead of waiting for it to trigger. It raises variance considerably and is not available in every country (it is banned in the UK).
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Expanding wilds
When an expanding wild lands, it grows to cover its whole reel, turning one symbol into a full column of wilds.
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.
Progressive jackpot
A jackpot that grows with a share of every qualifying bet until someone wins it. Contributions are funded from the game's RTP.
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.
4 more tips and a session planner
- Treat bonus buys as high-risk. Buying the feature concentrates your budget into a few large-variance rounds. Many results return less than the price paid. Read our bonus buy guide first.
- Check jackpot eligibility. Some progressive jackpots require a minimum or maximum stake to win the top prize. Part of every bet funds the jackpot, so base-game RTP is lower.
- Bonus wagering: at 96.08% RTP, clearing $1,000 of wagering costs about $39.20 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
For high volatility we suggest a budget of at least 300 spins. This is what that means for 40 Extra Crown Buy Bonus.
| Budget | Stake a spin | Bet range | Average cost of 300 spins |
|---|---|---|---|
| $20 | $0.07 | Bet range not published | $0.78 |
| $50 | $0.17 | Bet range not published | $1.96 |
| $100 | $0.33 | Bet range not published | $3.92 |
| $250 | $0.83 | Bet range not published | $9.80 |
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%)
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Mega Joker99% RTP · +2.92 pts
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Frequently asked questions
Who makes 40 Extra Crown Buy Bonus?
40 Extra Crown Buy Bonus is developed by Amusnet (EGT) and was released in 2025.
What is the RTP of 40 Extra Crown Buy Bonus?
The default RTP of 40 Extra Crown Buy Bonus is 96.08%.
Is 40 Extra Crown Buy Bonus high volatility?
40 Extra Crown Buy Bonus is rated high volatility. High volatility concentrates the return in rare, large wins.
What is the max win on 40 Extra Crown Buy Bonus?
The maximum win on 40 Extra Crown Buy Bonus is 5,000x your stake, which is $5,000 on a $1 spin.
Can I play 40 Extra Crown Buy Bonus for free?
Yes. GambGenius members can open the official Amusnet (EGT) demo of 40 Extra Crown Buy Bonus, which runs on Amusnet (EGT)'s own demo site. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does 40 Extra Crown Buy Bonus have a bonus buy?
Yes. 40 Extra Crown Buy Bonus includes a bonus buy option, although it is unavailable in some countries such as the UK.
Where this data comes from
- amusnet.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 © Amusnet (EGT), shown to identify the game.
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