Bonus buy slots are the latest innovation in the iGaming industry: If you don’t like to make hundreds of spins just to activate the feature, slots where you can buy bonus may be the best option for you. However, there is a lot of controversy about this type of slot game and most players do not know exactly what they are.

We have provided basic information about these games in our online slots guide, so this time we will talk about 3 reel slots and 5 reel slots with the bonus buy feature. Below, you can find answers to all your questions about slot games where you can purchase the bonus round.

Our Best Online Casino Picks for 2021

But, as always, let’s start with a list of the best casinos to play slot machines with bonus games. We checked dozens of online casinos and played hundreds of bonus buy slots in order to find the best websites that offer them. Below, you can see a list of them: Any of these casino sites will be a good option to play slots where you can buy bonus. You can visit our online casino reviews page to learn more about them or simply pick one and start playing: It is your call!

Cobra Casino
Cobra Casino logo small
The welcome bonus of Cobra Casino awards the first three deposits of new members. You need to deposit at least 20 EUR each time and use the relevant bonus code. In total, you can win up to 1.050 EUR and 300 free spins. Let’s list these bonus codes first:

  • 1st Deposit: Use the COBRA100 code. The match rate is 100% and the maximum bonus is 500 EUR. You will also get 250 free spins.
  • 2nd Deposit: Use the COBRA50 code. The match rate is 50% and the maximum bonus is 150 EUR. You will also get 50 free spins.
  • 3rd Deposit: Use the COBRA125 code. The match rate is 125% and the maximum bonus is 400 EUR. No free spins this time.
Big5 Casino
Register today at Big5Casino to benefit from this amazing welcome bonus:

  • Get a 100% up to €500 on your first deposit with a minimum deposit of  €20
  • Get an additional 500 Free Spins when you deposit €55+
  • The free spins are released in bundles of 50 free spins per day, over the course of 10 days
  • Wagering requirements: 30x
Katsubet Casino
KATSUBET WELCOME PACKAGE: UP TO €500 + 100 FREE SPINSRegister today at Katsubet and grab the outstanding welcome package:



  • 1st deposit: 100% up to €100 + 100 free spins
  • 2nd deposit: 75% up to €100. Bonus code: ‘2DEP’
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  • 4th deposit: 100% up to €100. Bonus code: ‘4DEP’
Spin Samurai Casino
Get the amazing welcome package at Spin Samurai Casino: Up to €800 + 75 Free Spins!

  • 1st deposit: 60% up to €100
  • 2nd deposit: 50% up to €200 + 25 Free Spins
  • 3rd deposit: 40% up to €500 + 50 Free Spins
  • wagering requirements: 45x
MrLuck Casino
Make three deposits and start playing with up to 1200% bonus + 100 Wager Free Spins!

  • First deposit is 500% up to €100
  • Second deposit is 400% up to €120 + 50 Free Spins (no wagering)
  • Third deposit is 300% up to €120 + 50 Free Spins (no wagering)
  • Wagering requirements: x30

Slots Where You Can Buy Bonus: What Are They?

Suppose you are playing a classic video slot: Let’s say you are playing the Pharaoh’s Fortune slot machine or you decided to try your luck on the Valkyrie slot machine. All of these games have a bonus feature that you can activate when you meet certain conditions. For example, when you find three scatter symbols in the Lucky Charm slots, you activate the free spin round. However, doing so depends on luck and may require you to do a lot of spins. If you are not lucky enough, you might not be able to trigger a bonus round even after you’ve done hundreds of spins.

In games like Roller Coaster slots and Center Court slots, there is a reason you want to start the bonus round: You win more often and more than ever on these rounds. So when the feature starts, you can be sure that you will make a profit. Of course, it is not possible to know the amount of this win, but this is what makes bonus rounds in slot games attractive.

Bonus buy slots are exactly the same as classic video slots in this respect. There is no difference in terms of rules and features. These games also have bonus features and you can activate them as usual. However, if you don’t want to wait, there is an option you can use: buy it. In bonus buy slots, you can trigger the bonus feature whenever you want by paying for it. Imagine playing 3 slots Captain America: If you have enough money, you can try your luck only in the bonus round instead of wasting time with the regular game. The amount you have to pay is calculated according to the bet amount and is different for each slot.

Top Casinos List Where You Can Gamble Online (2021)


Casino Name


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How Bonus Buy Slots Work?

Slots where you can buy bonus are still video slots, so you don’t need to “re-learn” how to play them. In fact, you can try them for free, just like regular slots: bonus buy slots free play option is available. As explained above, the only difference is the option to purchase the bonus feature. And this is very easy to do: You will see a big button on the interface that says “buy” (or “purchase). When you click this button, a menu will appear where you can specify the buy amount. In other words, bonus buy slots do not have fixed prices: You can specify this amount freely by changing the bet value. As soon as you approve the purchase, the bonus round will start.

We cannot tell what the bonus round will be: It depends on the game. Most of the time, you will activate the free spin round – the majority of 20 line slots offer this feature. And this feature is different in every game: Sometimes you get 10 spins with multipliers, sometimes 15 spins with sticky wilds, sometimes just 50 free spins. Check the paytable of bonus buy slots before purchasing the feature: This way, you can understand what you are buying.

High Volatility For Bigger Payouts


There are a couple of things you need to be aware of in order to maximize your return from bonus buy slots. First, the answer to the “do high limits slot pay better” question is no, the payout frequency does not depend on the bet values. In other words, you don’t need to spend a fortune: Even penny slots can pay quite satisfying amounts on a regular basis. The thing you need to look for is volatility. As a general rule, the higher the volatility, the bigger the payments will be. They will also happen less often but when you win, the amount will be worth all your troubles. So prefer bonus buy slots with high volatility. You can also think about playing slots where you can buy a bonus in a slots tournament: This way, you also get a chance to win a big prize.

Should You Play Bonus Buy Slots?

This depends on your budget and expectations. When you buy the bonus feature, the online casino software still offers the same RTP values, so there is no “guarantee” that you will win. In other words, you may not win a single penny even after purchasing the feature: Whether you will win or not still depends on how lucky you are. However, in general, we can say that you will be able to make a profit in the long run, especially if you prefer bonus buy slots with high volatility. Whether this profit will be enough for you or not depends on your personal expectations. We recommend checking the bonus buy slots list and try all the games on that list for free first. This way, you will have a better idea of whether it will be worth it or not.

Bonus Buy Slots Banned In The United Kingdom


At the end of 2019, The United Kingdom Gambling Commission has banned all kinds of bonus buy slots at online casinos licensed by the UKGC. As a justification, it was stated that “players spend 3 times more money than they normally do in these games.” In other words, bonus buy slots were claimed to be against responsible gaming practices. As a result of this decision, bonus buy slots UK have been removed from UK-licensed online casinos. It is still possible to play these games, but there is no buy option, you can only play them like a normal video slot. So, for example, you can still play Immortal Romance slot (and other Microgaming slots) but you can no longer purchase the bonus feature.

Pros And Cons Of Slots Where You Can Buy Bonus

  • You don’t have to wait to activate the bonus round
  • You can win quite big if you are lucky enough
  • You can enjoy more frequent payouts
  • You don’t have to waste money on regular spins just to trigger the feature
  • You can spend more than usual if you are not careful
  • The RTP values do not change

Start Playing Top Bonus Buy Slots Today

We highly recommend trying bonus buy slots: They offer a different experience and a chance to win really big. Pick one of the payment casino sites listed above and register today to start playing hundreds of slots where you can buy bonus. You can pick an online slots Canada site or any other country: We have an option for every jurisdiction in the world. And bonus buy slots are not the only thing you can play at our recommended casinos: You can try your chances also on card and table games. (Speaking of which, make sure to check our online roulette guide too.) In any case, we wish you good luck: See you at the tables!