Are you one of those players who can’t resist a good Bonus Buy feature? If so, I have created a list of slots with the best-paying Buy a Bonus feature on the market. Let’s dig in together!
Buy Bonus Feature slots are emerging rapidly, and they usually have high RTPs
Slots with the Buy a Bonus feature, also known as Bonus Buy Feature slots, are becoming incredibly popular. We have around 200 of them and this number grows rapidly.
You can play slots with Buy a Bonus feature at Betti, BC.Game, Players Club VIP and Casiplay Casinos.
Take, for example, Nolimit City, Relax Gaming, Pragmatic Play or Netent.
- Nolimit City did not release one single slot with a Bonus Buy Feature until 2025, when released 19 in total.
- The same for Relax Gaming. Only 1 in 2019 but 14 in 2025.
- Netent started in 2020. Now the incredibly popular Dead or Alive 2 comes with the Buy feature.
Big Time Gaming was the first provider to introduce the Buy a Bonus Feature in 2017 with White Rabbit Megaways slot. Another brilliant idea from this Australian slot provider, who also invented the famous Megaways mechanic.
Many players love slots with such a feature. The main advantage is that you access the free spins straight away, without the need to “struggle” in the main game. If you’re impatient, it works perfectly.
Another advantage is the higher Return to Player.
The RTP of Feature Buy slots, compared to the RTP of the main game
Below we have the RTPs of all Feature Buy slots of 22 providers.
The blue dots are the RTPs of the main game (base game) of these slots, and the red dots are the same slots’ RTPs if you opt for the Feature Buy.
The Feature Buy’s RTPs are way more attractive than the RTPs of the main game. Online casinos encourage players to increase their stakes by offering more attractive payout percentages, which is an effective way to incentivize them.
Besides, there’s a lot of competition. As a player, wouldn’t you be more interested in a slot with a 98% RTP compared to one with a 96% RTP?
The Buy a Bonus Feature slots with the highest RTP
Below is the top 20 list of Buy Bonus Feature slots up to June 2025, showing that there are already 20 slots with an RTP exceeding 97%.
Money Train 2 and Money Train, a couple of fantastic Relax Gaming slots, have an RTP of 98% if you choose to play the Buy a Bonus Feature. In the main game, these percentages are 96.4% and 96.2%, respectively.Kalamba slots are not on the list. Kalamba released over 30 slots with a Buy a Bonus Feature, and some 10 of these have RTPs ranging from 97.5% and 98%. You need to be careful, though, as it only applies to the highest bet level if you increase the stake to that level.
Why a higher RTP is so important
| RTP Percentage | Expected Loss per $€100 Bet | Total Wager | Expected Loss |
|---|---|---|---|
| 96% | $€4 | $€500 | $€20 |
| 97% | $€3 | $€500 | $€15 |
And it becomes larger and larger once you start to wager higher amounts.
The RTP has nothing to do with the volatility (or variance) of the slot. Variance says something about the variation of the sizes of wins. High volatility slots pay more top prizes, but less frequently.
Low variance slots payout smaller prizes, albeit more often.
Conclusions – Slots with a Buy a Bonus Feature usually have attractive payout percentages
There are more than enough Buy Bonus Feature slots with attractive RTPs. It pays off looking for those with an RTP of 97% or more.
There are plenty of choices, and that will increase going forward. I saw around 200+ slots in 2025, and I expect to see at least another 100 of these in a few years.
Play Bonus Buy Feature slots at these online casinos
If you are looking for Bonus Buy Feature slots with a high Return to Player, you can check out the trustworthy online casinos in our list below.
These online casinos let you choose whether to play with real money or just for practice.
Available in your country
- 🤑Crypto-friendly
- 📱Mobile app
- 🚀Leaderboard feature
It has a wagering requirement of 60x and I have to say that the bonus terms and conditions are not fair, 60x is an above the standards, so be aware before you deposit for welcome bonus.
Bonus Info & Terms
- ⚡️Fast deposit and withdrawal options
- 🤑Mouthwatering bonuses
- ✅24/7 live chat support
Note that the deposit + bonus amount is subject to a 35x wagering requirement for any winnings to be withdrawn. Ensure you complete the wagering requirement within the 30-day validity period. Slots contribute 100%, and table games and video poker contribute 10% to the wagering requirement.
Bonus Info & Terms
- 📱Top-notch mobile performance
- 🤑Crypto gambling
- 🎁Exciting bonuses
You need a minimum of $20 to claim the offers. Additionally, if you can deposit $100 or more for your first deposit, you can claim up to 100 free spins to play the Hot Lucky 7s slot.
Bonus Info & Terms
- 🤑 No-deposit bonus
- 🎁 Generous promotions
- ⚡️ Progressive jackpots
The minimum deposit for the welcome offer is $50, which is a bit higher than most other online casinos I gotta admit. However, if you don’t mind the steep deposit, you can get a pretty decent starting bonus to try out what this casino has to offer.
Bonus Info & Terms
- ✅ 24/7 Customer support
- 🎁 Enticing welcome offers
- 🤑 Existing promos and VIP program
The wagering requirement must be beaten in 90 days to win and withdraw the bonus fund. All games except jackpot slots contribute to the wagering requirement. Slots contribute 100%, Keno contributes 50%, and Video Poker contributes 20%.
Bonus Info & Terms
- 🤑 Crypto-friendly
- ✅ Licensed and secure
- ⚡️ Instant deposits
The qualifying minimum deposit for these welcome bonuses is capped at $25. It’s important that you redeem the code before you make these deposits for the bonus to be valid. In addition, you must beat the wagering requirement of 25 times before you can withdraw the bonus funds on any deposit.
Bonus Info & Terms
- ✅Crypto Casino
- 🍓300 Free Spins
- ⚡️Fast Cash-outs
Deposit: Does not require a minimum deposit Bonus Match Percentage: 110%, 50%, 75%. Maximum Bonus Value: 1 BTC (and Cryptocurrency equivalent) or 100 EUR (and FIAT equivalent) No Deposit Free Spins: 50 Free Spins Free Spins: 300 Free Spins Free Spins Slot Game: Princess of Sky, Brave Vikings, Book of Pyramids, Cherry Fiesta, Desert Treasure, Lucky Lady Clover, West Town, Lucky Blue, Princess Royal, Hawaii Cocktails Bonus Wagering: 35 x Bonus Free Spins Wagering: 40 x Free Spins Remarks: 250 Free Spins offered as part of the 1st Deposit Bonus will be rewarded in a set of 50 spins for 5 days. Minimum deposit required for the spins is 0.05 BTC (and Cryptocurrency equivalent) or 50 EUR (and FIAT equivalent). Full T&C Apply. begambleaware.org. 18+
Bonus Info & Terms
- 🎁 Juicy Welcome Bonus
- 🔥Various Slots
Select the Welcome Casino Bonus option from the menu drop-down and deposit at least €25 to qualify for this offer.
Bonus Info & Terms
- 🤩 7000+ casino games
- 🎁 Various payment options
- 🤑 24/7 customer service
JackBit Casino does not offer a welcome bonus. Instead, you can benefit from 3+1 freebet offer. Minimum bet is $10 along with 1.3 odd for position.
Bonus Info & Terms
- ✅Bitcoin Casino
- 🎁Gigantic Welcome Bonus
- ❤️Excellent Customer Support
Bonus Code: MAX300 Deposit: Minimum required deposit is $20 Bonus Match Percentage: 300% Maximum Bonus Value: $3000 Free Spins: 200 Free Spins over 10 days Free Spins Slot Game: N/A Bonus Wagering: 40 x Bonus + Deposit Free Spins Wagering: 35 x Free Spins Remarks: Slots, Keno & Scratch Cards only to fulfil wagering requirement. The max cash out from free spins is $200. Full T&C apply. begambleaware.org. 18+
Bonus Info & Terms
