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UKTop 9 Bonus Buy Slots That Can Unlock Big Winnings
Discover the best bonus buy slots and get straight to the action without having to trigger a feature. Pay your way to a free spins or Hold & Win bonus with an instant buy. It’s a great way to maximize profits at the top online casinos when you play slots.
Our top 9 best bonus-to-buy slots offer superb graphics and gameplay, coupled with awesome features. We’ve also selected the best online casino options where you can try out a bonus buy today.
| Rank | Bonus Buy Slot | Special Features | Bonus Buy | RTP% | Where to Play |
|---|---|---|---|---|---|
| #1 | Buffalo Bounty XL | Free spins, multipliers | 70 coins | 95.22% | Visit Bovada |
| #2 | Bonanza Billion | Cluster wins, free spins, random multipliers | 100 coins / Chance x2 for $0.25 | 96% | Visit Wild Casino |
| #3 | River of Gold XtremeWays | Free spins, Megaways, cascading reels, Bonus Wheel | 100 coins | 96.08% | Visit Bovada |
| #4 | April Fury and the Chamber of Secrets | Hold & Win, free spins, wilds | 30 coins | 96.20% | Visit Ignition Casino |
| #5 | Dragon Kings | Progressive jackpots, expanding wild reels, free spins | 44 coins | 95.53% | Visit TrustDice |
| #6 | Metal Detector Mayan Magic | 2x multipliers, Hold & Win, in-game jackpots | 31 coins | 94.21% | Visit DuckyLuck Casino |
| #7 | 3 Pots of Gods | 4x fixed jackpots, free spins | 24.43–86.64 coins | 96.23% | Visit Las Atlantis Casino |
| #8 | All Mine Hold & Win | Hold & Win, re-spins, fixed jackpots, wilds | 30–100 coins | 96.50% | Visit BetUS |
| #9 | 15 Coin Bank Bust | Hold & Win | 55 coins | 96% | Visit Café Casino |
#1 – Buffalo Bounty XL – Spin & Lock
- Software: Dragon Gaming
- Year Released: 2024
- Bonus buy: 70 coins
- Reels: 5×4
- Paylines: 20
- Jackpot (Y/N): Y
- Where to Play: Visit Bovada
Buffalo Bounty XL – Spin & Lock is a sequel to Dragon Gaming’s original stampede-themed slot that features an all-new bonus buy. For 70 coins, you instantly trigger the game’s Spin & Lock feature.
Spin & Lock works like Hold & Spin, awarding you 3 re-spins with multipliers worth up to 10x. Plus, you may trigger one of three random free spins features with expanding wilds. That makes the bonus buy well worth the extra spend.
Our full and unbiased Bovada review gives you more insights into why it’s the best place to play Buffalo Bounty. Join the Bovada Rewards program for daily perks, or just sign up for an instant 125% welcome offer.
#2 – Bonanza Billion
- Software: BGaming
- Year Released: 2021
- Bonus buy: 100 coins
- Reels: 6×5
- Paylines: Cluster pays
- Jackpot (Y/N): Y
- Where to Play: Visit Wild Casino
Bonanza Billion also appears on our list of the best slots with bonus games, and for good reason. This classic slot uses the cluster pays mechanic instead of traditional paylines. Simply match clusters of cherries, stars, or melons to win cash.
In addition, you can activate 10–30 free spins by landing the right number of scatters. This best slot with a bonus to buy lets you skip to the action with as little as $20.
We recommend paying the 100x bonus buy for a chance at hitting some juicy 100x multipliers. Alternatively, you can pay $0.25 to simply double your chances at triggering the feature.
Check out our Wild Casino review for the skinny on our recommended site for the best buy-a-bonus slots like Bonanza Billion.
#3 – River of Gold Xtremeways
- Software: Qora Gaming
- Year Released: 2024
- Bonus buy: 100 coins
- Reels: 6
- Paylines: 117,649 ways to win
- Jackpot (Y/N): Y
- Where to Play: Visit Bovada
River of Gold Xtremeways is a former Game of the Week at Bovada, and for good reason. You can win a jackpot worth over 40,800x while spinning up to 117,649 ways to win on a single spin.
The bonus buy of 100x is a little on the heavy side, but worth the shot with such a large jackpot up for grabs. Plus, the free spins you trigger carry a potentially unlimited win multiplier on payouts.
River of Gold Xtremeways also features a Bonus Wheel bonus that offers the chance to take down a Mega Jackpot worth 1000x. Again, Bovada is our go-to online casino if you want to travel the River of Gold for extreme payouts.
#4 – April Fury and the Chamber of Scarabs
- Software: Betsoft
- Year Released: 2023
- Bonus buy: 30 coins
- Reels: 5×4
- Paylines: 20
- Jackpot (Y/N): Y
- Where to Play: Visit Ignition Casino
April Fury and the Chamber of Secrets combines the thrill of the Indiana Jones movies with cutting-edge Betsoft gameplay. You can win a jackpot worth 4000x as you trigger free spins, wilds, or the Hold & Win bonus.
Additionally, take a shortcut with the bonus buy option. You can immediately trigger 9 free spins instead of the usual 8 when you pay the 30-coin bonus buy. It’s not a huge additional number of free spins. However, with a 4000x jackpot to chase, it’s worth the extra payment.
Why not visit our Ignition Casino review to find out about the site’s exclusive bonus buy slots? New slots with the bonus buy are added to the Ignition Casino lobby weekly.
#5 – Dragon Kings
- Software: Betsoft
- Year Released: 2024
- Bonus buy: 44 coins
- Reels: 5×3
- Paylines: 10
- Jackpot (Y/N): Y
- Where to Play: Visit TrustDice
Dragon Kings is our best buy-a-bonus slots game if you love Oriental-themed titles. It’s another Betsoft slot (not that we’re apologizing) and offers 2x wild dragons that can expand to fill a reel.
Look out for the magical dragon pearls, too, which double any free spins wins. The more you bet, the bigger your chance of triggering one of four progressive jackpots.
Plus, you can pay 44 coins to automatically trigger 30 free spins. That’s enough free spins to warrant dipping into your bankroll for.
Why not read our TrustDice review now to see why it’s one of the best Bonus buy slots casinos. You can enjoy provably fair slots while claiming a welcome bonus worth 3 BTC.
#6 – Metal Detector Mayan Magic
- Software: Rival Gaming
- Year Released: 2024
- Bonus buy: 31 coins
- Reels: 5×3
- Paylines: 243 ways to win
- Jackpot (Y/N): Y
- Where to Play: Visit DuckyLuck Casino
Go on a journey of adventure and discovery in Metal Detector Mayan Magic from Rival Gaming. This colorful 5-reel slot crams in Hold & Win, free spins, and even four fixed in-game jackpots.
You can trigger the bonus buy for just $0.30 for a chance to win 30x in the Hold & Win feature. Alternatively, pay the maximum buy bonus of $30 for a shot at a $930 Hold & Win jackpot. Metal Detector Mayan Magic is a bonus buy slot that holds something special back for the high rollers.
You can kickstart your journey with a 600% welcome bonus on cryptos before diving into 500+ bonus buy slots at DuckyLuck. Read our review of DuckyLuck to find out more.
#7 – 3 Pots of Gods
- Software: Genesis Games
- Year Released: 2025
- Bonus buy: 24.43–86.64 coins
- Reels: 6×5
- Paylines: 50
- Jackpot (Y/N): Y
- Where to Play: Visit Las Atlantis Casino
3 Pots of Gods is a new bonus buy slot for 2025 with an exciting three ways to directly trigger the feature. You can buy directly into a bonus by paying 24.43–86.64x stake. That gives you much more choice in your bonus buy slots gameplay.
For just 24.43x, one of three free spins bonuses triggers. Pay 42.84x, however, and one of the Super Features activates. Alternatively, pay the maximum 86.64x and the Mega Feature triggers. Summon one of the three ancient Greek gods to unlock free spins, expanding reels, or one of the fixed jackpots.
Read our Las Atlantis Casino review to discover more about the site’s exciting bonus buy slots and promotions.
#8 – All Mine Hold & Win
- Software: Nucleus Gaming
- Year Released: 2017
- Bonus buy: 30–100 coins
- Reels: 5×3
- Paylines: 243 ways to win
- Jackpot (Y/N): Y
- Where to Play: Visit BetUS
All Mine Hold & Win is an explosive mining-themed slot from Nucleus Gaming that offers 243 ways to win on every spin. You can also trigger the Hold & Win bonus by hitting 6+ scatters anywhere.
Alternatively, skip to the Hold & Win round automatically with a bonus buy. Pay up to $100 (depending on stake) to auto-trigger the bonus feature and a chance to win. With four fixed jackpots to win, this is one of the best bonus buy slots worth digging for.
Make sure you read our BetUS review to unearth one of the top casino-sportsbooks in town. You can play 300+ top slots from Nucleus, Bgaming, and many more. Plus, you may claim weekly bonuses covering both casino and sports.
#9 – 15 Coin Bank Bust
- Software: Qora Games
- Year Released: 2025
- Bonus buy: 45–55 coins
- Reels: 5×3
- Paylines: 243 ways to win
- Jackpot (Y/N): Y
- Where to Play: Visit Café Casino
15 Coin Bank Bust is one of the hottest bonus buy online slots to come from the Qora Games vault. You can trigger either free spins or Hold & Win with a bonus buy worth 45x–55x, respectively.
That’s higher than the 30x seen on other games in our list. However, you do have a little latitude on which bonus buy option to go for. Plus, you may trigger one of four main jackpots when you play, including the Grand fixed at 10,000x.
Read our review of Café Casino where you’ll unearth a site packed with Hot Drop Jackpots and bonus buy slots. Sign up today to claim your 250% welcome bonus.
Bonus Buy Slots Tips to Help You Win
Find the best slots to buy a bonus on and win more with our simple takeaway tips.
#1 – Choose Slots with a High RTP%
Slots with high RTPs (Return to Player percentages) give you a better chance of long-term profits. With a Bonus buy, you cut straight to the feature and can maximize your average profits.
#2 – Practise Demo-Play Slots Before You Buy
Many top online casinos offer free-play versions of the slots. These are ideal for testing out the hit rate before risking your money. Plus, you can add high-hit-rate slots to a Favorites list for future gameplay. You may not need to plump for the bonus buy if the slot carries a high hit rate.
#3 – Don't Max Out Your Bonus Buy Limit
Some slots let you pay a smaller bonus buy, which merely increases your chances of triggering the free spins. That can be a good middle ground over the long term, rather than opting for the full bonus buy.
Playing the Best Slots with a Bonus Buy Feature
The best bonus buy slots offer a neat shortcut to free spins or the main prize feature. You won’t always win, but give yourself a second chance if you miss out during the base game.
Not every developer or casino offers the best buy-a-bonus slots. That’s why we’ve curated a perfect slots list to get you started. Enjoy demo-play bonus buy slots from Betsoft and others before depositing and gambling for real cash.
