The Top Poker Sites for Online Poker in 2025 
Best Online Sports Betting Sites 
Claim the Best Online Gambling Bonuses 
The Best Slots Games to Play Online 
Reviews of Online Gambling Sites Bonus Buy Slots That Are Worth the Price
Bonus buy slots have exploded in popularity because they let you skip the grind and jump straight into the bonus round. Of course, immediately unlocking a game’s key feature is costly, so you don’t do it with just any slot.
I’ve found and personally tested some of the best bonus buy slots for you to try. I’ll get into why each of these games stands out, from cheap bonus buys to serious win potential.
You’ll also see my tips for maximizing your play on feature buy games, plus a list of slots I recommend avoiding. Now let’s jump into the best US-friendly slots to buy the bonus.
Top 10 Slot Games with Bonus Buy Features
I’ve played many bonus buy slots from trusted and secure casinos like Buffalo, DuckyLuck, El Royale, and Lucky Rebel. The following 10 are my personal recommendations for reasons like their exciting bonuses, cheap feature buys, and beginner-friendly gameplay. Again, all these games come from reputable and licensed platforms.
| Bonus Buy Slot | Provider | Where to Play | Bonus Buy Price | RTP | Volatility | Best for |
|---|---|---|---|---|---|---|
| Legend of Sparta | Dragon Gaming | DuckyLuck | 40x | 96.96% | Mid-to-high | Overall experience |
| Coins of Ra Deluxe | Betsoft | Lucky Rebel | 46x | 96.06% | Mid-to-high | Hold & win excitement |
| Piggy Bjorn 2 | GameArt | Ignition | 15x–500x | 96.91% | High | High-volatility players |
| Amazons Unleashed | Rival Gaming | Wild Casino | 32x | 96.08% | High | Cheap bonus buys |
| Buffalo Bounty XL | Dragon Gaming | El Royale | 70x | 95.05% | Mid-to-high | Replayability |
| A Big Catch: Hold & Win | Betsoft | El Royale | 83x | 96.50% | Mid-to-high | Frequent win multipliers |
| 15 Coin Bank Bust | Qora | Lucky Rebel | 45x–55x | 96.25% | High | Cheap stakes |
| 3 Pots of Lunar Wolf | Betsoft | Ignition | 80x | 96.10% | High | Multiple chances at jackpots |
| Fruity Spins | Dragon Gaming | Buffalo Casino | 50x | 95.25% | High | Bonus buy beginners |
| Book of Thor | Qora | Wild Casino | 89x | 96.05% | Medium | “Book of” slots fans |
My Favorite Bonus Buy Slots
I’d like to expand on my top 5 slots with a bonus buy feature. The following mini reviews show what makes each game stand out and why I think you’ll like them.
1. Legend of Sparta
This slot has the complete package: plenty of features, an affordable bonus buy, high RTP, and decent win potential (4,000x).
You can kick off the bonus round for 40x your bet, which gives you 8–12 free spins with one modifier. Available modifiers include an expanding symbol, jumbo symbols, revealer symbols, or high-value symbols only.
I usually play this game for around $0.40 per spin, which puts the feature buy cost at $16. This amount is worth it for me since the modifier often helps me net a few wins.
You’d probably enjoy Legend of Sparta if you want more than just a good bonus. Everything from the 96.96% RTP to the action-packed animations help make this a great all-around slot.
2. Coins of Ra Deluxe: Hold & Win
I like how Coins of Ra Deluxe adds some twists to the increasingly common hold & win feature. It offers an expanding symbol that increases its respective reel by one position when landing. The bonus also offers +1 re-spin symbols and an interesting coin collection system.
I’ve found the hold & win feature to be fast paced during my sessions. This speed creates more intensity as you’re watching collected coins pile up. I seemed to win at least half my buy costs back even during bad rounds, which makes the 46x price tag easily bearable.
Overall, Coins of Ra Deluxe is worthwhile if you want an action-packed bonus plus something different from the hold & win style genre.
3. Piggy Bjorn 2: Winter is Coming
If you can stomach the insane volatility, Piggy Bjorn 2 is another top-tier bonus buy slot. It’s particularly interesting if you like chasing fortunes since it boasts an 80,000x max payout—one of the biggest in gaming.
Piggy Bjorn also earns points for its multiple bonus buy options. You can unlock Snowstorm (mystery symbols), regular free spins, and upgraded free spins for 15x, 100x, or 500x your bet, respectively. The upgraded spins come with a Fury Taxes symbol that adds all visible symbol values to itself.
I tried the 100x feature buy option several times and noticed that it can be quite volatile. I had one big winning bonus round, a couple that didn’t result in much, and a mediocre round. That said, I’d recommend using your buys strategically with Piggy Bjorn 2.
4. Amazons Unleashed
This game has the cheapest bonus buy among my favorite picks at just 32x. You’d think such a low cost would mean limited win potential, but Amazons Unleashed has an impressive 20,000x max payout.
The bonus is a standard hold & win round where you try matching jackpot symbols. The goal is to fill the grid with Grand Jackpot symbols and net 48,000 coins.
Be aware that the RTP drops from 96.08% (base game) to 94.72% when you buy the bonus. I’m still willing to deal with this downside considering the cheap price. I highly suggest trying Amazons Unleashed if you want to chase serious money for a smaller feature buy.
5. Buffalo Bounty XL: Spin & Lock
Buffalo Bounty XL has one of the more exciting bonus rounds I’ve seen, offering random modifiers like instant wins, expanding wild symbols, and Jumbo symbols.
It also features four jackpots, including a Grand Prize worth 2,500x your wager. This jackpot is in addition to a 5,000x standard max win.
I’ve ponied up the 70x feature buy cost plenty of times. I personally had the most luck in the bonus round when getting jumbo symbols (3×3). Of course, expanding wilds and instant wins (up to 50x) definitely help too.
Due to its entertaining bonus, Buffalo Bounty XL is a good game if you’re looking for something with long-term playability. It’s especially fun when you can afford to buy the bonus multiple times in a session.
What Bonus Buy Slots Are & How They Work
Bonus buy slots let you pay a premium to instantly trigger the bonus round. Costs commonly range from 40x to 100x your bet size. Once you pay the amount, the necessary number of scatter symbols will land and trigger the feature. Bonus buys are incredibly popular because they let you skip straight to the most exciting part of a slot.
If you’re new to using this option, here are the general steps to buying a bonus:
- Choose your bet size and click the bonus buy button.
- Double check the cost and adjust your wager if necessary.
- Confirm that you want to purchase the feature.
- The bonus will automatically trigger on the next spin.
5 Tips for Playing Bonus Buy Slots Online
Bonus buying adds thrills, but strategy matters if you want to make the most of your experience. Here are five tips to help you stay in control and have fun.
1. Start with Cheaper Buys
Cut your teeth on low-cost feature buys if you’re new to these games. This way, you can get used to the volatility of spending so much at once and see how your bankroll handles it. For example, Legend of Sparta (40x) is easier on your bankroll than Book of Thor (89x).
2. Decide What Buys Fit Your Budget
You should strategically choose games based on their feature buy cost and your bankroll. If you have $200 and wager $0.50 per spin, for instance, that gives you 400 total units. You might then shoot for games with a 40x–50x cost so you have enough for at least 8–10 shots at buying the bonus.
3. Know a Game’s Volatility
Some slots like Piggy Bjorn 2 feature extreme volatility and are boom or bust in the bonus department. Others like Legend of Sparta are less volatile, which helps you win more consistently with bonuses.
4. Map Out Your Playing Strategy
Are you somebody who strictly likes playing bonuses and chasing huge wins, or do you prefer mixing between feature buys and the base game for extended sessions? Knowing yourself helps when looking for the perfect combo of volatility and bonus buy costs.
5. Don’t Get Too Hung Up on Max Wins
I know that dreams of hitting a huge max payout are exciting, but they’re not everything. Some max wins have long odds in the tens of millions, so don’t wear out the bonus buy button hunting for a massive payday. I personally focus on more manageable goals like tripling my starting bankroll through bonuses.
No-Go Bonus Buy Slots (Slots We Do NOT Recommend)
I’ve tried each of the following bonus buy games and would avoid them for reasons covered below:
- Crypto Jackpots: Combines terrible RTP (93.89%) with an uninspiring max bonus win (1,080x).
- Big Payday: Although I like the max payout (15,000x), I didn’t have much success with three different bonus buys worth 70x apiece.
- 3 Tech Bros: Fun theme, but a pricey bonus buy (92x) considering the moderate 3,500x max win.
- Raiders of the Lost Book: This game lagged badly during my session, which made it difficult to buy the bonus and sit through 10-second long spins.
- Carnival Forever: The max win (10,848x) is nice, but I really felt the low hit rate (19.13%) after mostly losing several 100x buys.
Pick Your Favorite Slot and Enjoy!
I chose my list of the best bonus buy slots with a broad range of interests in mind. If you love volatility and chasing huge scores, you might try Piggy Bjorn 2 or Amazons Unleashed. Perhaps you’re a beginner looking to ease into this genre, which Fruity Spins and its classic vibe are perfect for.
Whatever the case, be sure to stay within your budget and refer back to my bonus buy slot tips. Buying bonuses can get pricey, so have a plan in mind when choosing games that fit your bankroll.
Contact Jeremy
