Best Bonus Buy Slots: Pay, Spin, and Win Online!

Written by: Ashley Grasse, Casino, Games, and Trends Specialist
10 minute read
Best Bonus Buy Slots

Bonus buy slots are an attractive choice for those who love to spin the reel at online casinos. We all know that the best part of a slot game is the bonus round, but sometimes the wait for it to happen naturally can feel like an eternity.

That’s why I’ve compiled a list of the best slots to buy bonus for 2024 so you can fast-track to the good part. I’ll review their key features and the details of the bonus buy.

Get ready to spin the reels and call the shots.

What Are Bonus Buy Slots?

A bonus buy slot lets you purchase the bonus feature instead of waiting for it to trigger randomly in the game.

Usually, a certain number of scatters will earn you a bonus round, but sometimes it can take a long time before you hit the right combination. Wouldn’t you want to skip the wait if you could?

If you answered yes, you’re not alone. In fact, so many people want to jump into the bonus feature that this kind of slot has become one of the most popular online gambling games

Top 10 Bonus Buy Online Slots

I played through many titles in my quest to find the best bonus buy slot games, and the ones below are the top ten. They have the most lucrative features, above-average RTP, exciting themes, and of course, bonus buy options.

You’ll find these and other real money online slots at our leading, secure, and trusted casinos.

Bonus Buy Slot RTP Game Highlight Casino Bonus Play now
Carnaval Forever LogoCarnaval ForeverRTP 96.63%Game Highlight 10 FS for 100x wager DuckyLuck Casino
500% up to $7,500
Play Now
Tower of Fortuna LogoTower of FortunaRTP 96.09%Game Highlight 10 FS for 50x bet SlotsandCasino
500% up to $7,500
Play Now
Alien Fruits slot logo
Alien Fruits
RTP 96.00%Game Highlight Buy FS with multipliers
between 2x-100x
Bovada Casino
125% up to $3,750
Play Now
Sweet 16 Blast Slot Logo
Sweet 16 Blast
RTP 96.00%Game Highlight 10 FS for 100x stake Las Atlantis Casino
280% up to $14,000
Play Now
Merlin's Riches Slot Logo
Merlin’s Riches
RTP 95.00%Game Highlight 10 FS for 35x bet Lupin Casino
$8,888 Welcome Package
Play Now
Take Santa's Shop LogoTake Santa's ShopRTP 96.08%Game Highlight 10 FS for 95x stake Wild Casino
100% up to $5,000
Play Now
Wild Cash Bonus Buy slot
Wild Cash
RTP 96.00%Game Highlight Multipliers
up to 999x
Ignition Casino
150% up to $1,500
Play Now
Faerie Spells LogoFaerie SpellsRTP 96.03%Game Highlight Purchase FS and trigger
4 jackpots
SuperSlots Casino
250% up to $6,000
Play Now
Expansion LogoExpansionRTP 96.08%Game Highlight 8 FS for 60x your bet DuckyLuck Casino
500% up to $7,500
Play Now
Book of Helios LogoBook of HeliosRTP 95.58%Game Highlight Bonus rounds
at 65.5x your stake
500% up to $7,500
Play Now

Top Picks: My Favorite Bonus Buy Feature Slots

Of the top ten bonus buy slots, there were some standouts. Check out my favorites below.


Carnaval Forever

Carnaval Forever Buy Feature

This slot will make you feel like you have a front-row seat to the wild, colorful Carnaval party.

Dancers in beautiful costumes fill the reels of Carnaval Forever as samba music plays in the background.

Three or more Carnaval Queen symbols trigger free spins, but you can skip the wait and buy ten of them for 100x your bet.

When I purchased them, I ended up with a ton of free spins. I set the buy feature to $150 and won $208.65 for a profit of $58.65.

With the Double Up feature, you can also wager your win on a coin flip for the chance to win more.

Slot RTP & Betting Limits

  • RTP: 96.63%
  • Betting Limits: $0.10 – $10
Please wait ...
DuckyLuck Casino
DuckyLuck Casino
Accepts US players with a 500% up to $7,500

Tower Of Fortuna

Tower of Fortuna Slot Features

See if the fates are smiling upon you in this stunning, mythology-themed slot.

Every spin without a win sends you climbing one story higher in a tower set among lush green mountains and ancient Greek temples.

As you ascend to the next level in the tower, a multiplier increases by 1x.

When you do hit a win, the multiplier applies, and you start over at the bottom. Three or more golden sun symbols trigger ten free spins where your current multiplier is also in effect.

The buy feature in Tower Of Fortuna lets you purchase them for 50x your bet. I set my bet to $1.50 and bought the spins for $75.

I scored plenty more free spins and a mega-win for $214.50.

Slot RTP & Betting Limits

  • RTP: 96%
  • Betting Limits: $0.60 – $9.60
Please wait ...
Accepts US players with a 500% up to $7,500

Alien Fruits

Alien Fruits Bonus Buy Slot Gameplay

This slot game invites you to taste the extraterrestrial rainbow. Alien Fruits has a 6×5 grid slot bursts with bright colors, wacky characters, and exotic flora.

It also features cascading reels, meaning symbols part of a winning combination get cleared to make room for more to fall into place.

Four or more scatters trigger up to 30 free spins, during which random multipliers between 2x and 100x come into play.

The buy bonus feature is also 100x your bet for ten free spins, so I set mine to $1 and paid $100. The round starts with a spaceship appearing and whisking you off into space.

I only won $40 in the end, but the whole experience was highly entertaining.

Slot RTP & Betting Limits

  • RTP: 96%
  • Betting Limits: $0.20 – $50
Please wait ...
Bovada Casino
Bovada Casino
Accepts US players with a 125% up to $3,750

Sweet 16 Blast

Bonus Buy Feature Slot Sweet 16

You’re sure to get a sugar high with this super sweet candy-themed slot. Tasty treats fill the 6×5 grid, and cotton candy clouds float by in the background.

In this high-volatility game from RTG, symbols that are part of a winning combination explode, and new ones appear until all winning combinations have been exhausted.

Four or more scatters trigger free spins, during which multipliers ranging from 2x to 100x appear randomly on the reels.

The bonus bet feature increases your odds of landing them for an additional 25% of your wager, while the bonus buy feature lets you buy ten free spins for 100x your stake.

The bonus round starts with a candy explosion, and even though I didn’t break even, it was a great time.

Slot RTP & Betting Limits

  • RTP: 96%
  • Betting Limits: $0.20 – $5
Please wait ...
Las Atlantis Casino
Las Atlantis Casino
Accepts US players with a 280% up to $14,000

Merlin’s Riches

Merlin's Riches Slot Gameplay

Merlin’s Riches is a high-volatility slot and a whimsical adventure to Camelot, where you’ll find the legendary King Arthur, Queen Guinevere, and Merlin the Wizard.

With a grid-changing bonus round and a free spin gamble feature, there’s plenty of mischief on the reels.

For 35x your wager, you can buy ten free spins. I set my stake at $2.50, costing me $87.50.

When the buy feature starts, you have the option to gamble for more spins. If you guess a coin toss correctly, you can win 15, 20, 30, or even 50 spins, but I stopped at 15.

Then, I was transported to a dark library full of potions and spell books, where my games commenced. When all was said and done, I walked away with a noble win of $124.

Slot RTP & Betting Limits

  • RTP: 95%
  • Betting Limits: $0.25 – $25
Please wait ...
Lupin Casino
Lupin Casino
Accepts US players with a $8,888 Welcome Package

Benefits And Drawbacks of Buy Feature Slots

  • You don’t have to wait for potentially hundreds of spins to land the bonus.
  • Bonus rounds can come with other perks like multipliers and re-triggerable spins that can give you a big boost when you want it.
  • It gives you a little more power in an otherwise entirely luck-based game.
  • As I have said, it’s convenient for those with short patience or less time.
  • Some games have a slightly higher RTP during the bonus round, allowing you to choose when you up the RTP.
  • It can be costly to buy a bonus.
  • Buying a bonus takes some of the fun out of triggering it randomly.

5 Tips for Playing Slots with Bonus Buy Feature

Even though bonus buy slots let you decide when you land a bonus, slot games are still luck-based. However, you can do a few things to play your best. Check out the following tips.

Pick a Lucrative Game

The best thing you can do to give yourself an advantage from the start is to choose the most lucrative bonus buy slots.

Look for games with RTPs of 95% or above and perks like multipliers.

Read the Rules Carefully

Make sure you understand what the bonus buy does before you purchase it. Does it give you free spins, a unique game, or another perk?

Another key point is to read the game rules before committing.

Buy Bonuses at a Fair Price

Some bonus buys can be over 500x your wager. If you’re not a high roller, that might not be what you’re after.

Look for reasonable bonus buy slots to take advantage of the feature.

Consider Casino Offers

If you claim a casino welcome bonus, keep the terms and conditions in mind.

Some promotions have a maximum bet limit, and if the bonus buy in the slot you’re playing exceeds that, your bonus may get forfeited.

Manage Your Bankroll

Always practice good bankroll management and gamble responsibly. Decide how much you want to spend before playing, and don’t deviate from your plan.

Only purchase the bonus feature if it fits into your budget.

Online Bonus Buy Slots vs. Standard Slots

Let’s look at some differences between playing slots with bonus buy features and regular online slot machines.

Bonus Buy SlotsStandard Slots
You can purchase the bonus outrightYou will have to wait for a bonus to get triggered randomly
They give you some control in the gameYou have zero control over the game
The bonus buy is an added riskThe only risk is the base game
Bonus buys can be 100x or more your wagerYou only have the option to make a standard wager

Are Bonus Buy Slot Games Worth It?

Bonus Buy Slots Icon

In my opinion, bonus buy slots are worth it, but only you can decide what’s right for your budget.

Bonus buy features often increase the RTP, have other perks like multipliers, and can result in big wins. But, ultimately, the outcome of a bonus round is up to luck.

There is a possibility you strike out and don’t break even. Stick to your budget and only buy the bonus feature if it fits into your bankroll management plan.

Play Slots with Buy Feature and Win Real Money

As shown above, bonus buy slots have a lot of advantages. They allow you to boost your game when you want, forgoing the random wait for a bonus round to drop.

But they can come with a hefty price tag, so make sure you understand the cost and the rules before hitting that button. Always make informed decisions when buying bonuses and gamble responsibly. 

If you’re ready to play, skip ahead to the best part of spinning the reels. Try one of the games on this page today!

FAQ Bonus Buy Slots

We’ve already discussed that slots with bonus buy features have the potential to generate some great wins. To sum up, we’ll now answer some of the most frequently asked questions about them.

Which online casinos have slots to buy bonuses?

You can find bonus buy slots online at legit casino sites like the ones we recommend on this page.

How much does a bonus buy cost?

Most bonus buy slots generally cost between 50x to 100 times your wager. However, some bonus buys can go up to 500x.

What are the best bonus buy slots software providers?

Betsoft, RTG, and Rival Gaming are some of the top software providers of slots with buy features.

Does buying bonuses impact the RTP of a slot machine?

Few things are certain in gambling. However, I found that the RTP of bonus buy slots is slightly higher than standard slots.

Ashley Grasse

Ashley Grasse Casino, Games, and Trends Specialist

Ashley Grasse is a research writer and casino entertainment expert. She's a game theory enthusiast, and an expert on information accuracy, making difficult concepts easy to understand, dissecting casino games, and reviewing games, software, and online gambling sites.

Learn More About Ashley