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Bonus Buy Slots Explained – Will You Win?

Game providers constantly come up with new features in their slots, and one that seems to be extremely popular right now is the 'buy a bonus' feature. These features allow you to pay to start a bonus round, and since bonus rounds are what most players are after, it's naturally become a huge hit!

Gone are the days when you have to play spin after spin after spin, sometimes counting in the hundreds, before a bonus is triggered. Now, thanks to bonus buy slots, you can simply pay to start it whenever you want. Perfect! Or…?

Pay to Get Free Spins and Other Bonuses

As we all know, it's usually the bonus rounds in a slot that is the most likely to pay out the huge wins, and that's why we all want them.

How often a bonus like this is triggered is, however, anyone's guess. Sometimes you can be fortunate enough to get them with just a couple of spins in between, while other times, you'll have to spin hundreds of spins before you finally get to enter the bonus round.

Most often, you'll need three scatters or bonus symbols lining up just perfectly to make this happen. And as always, with RNG games, there is no telling when that will happen. At least, that used to be the case before the buy bonus feature on online slots hit the market.

Lately, more and more slots are released where you can pay to trigger free spins or whatever other kinds of bonus feature the game has. In some online slots, you'll pay a fixed amount to activate it, and this can be somewhere between 50x and 100x your bet per spin.

In other progressive slots, you'll be collecting a token of some sort that will eventually trigger the bonus. The more tokens you already have, the less it will cost you to pay to start the bonus.

How to Buy a Feature on Online Slots?

With bonus buy feature slots, you don't need luck as much as you need money to get the best experience on the game. Every game has its own rules and prices.

Typically, you'll see the "Buy Bonus" button somewhere around the reels. When you click on it, a pop-up will reveal the feature's cost and what you get for it. Expect to get a number of spins or trigger a pick-and-win slot machine feature. Other options are on the menu now that online slots come with all kinds of mechanics.

Once you confirm your purchase, the adequate amount of money will be removed from your playing funds.

Most online slot machines will trigger a spin and land the symbols necessary for activating the bonus game. Then, whatever you paid for will happen.

Slots where you can buy bonus don't promise or guarantee any winnings. So, you may buy 15 free spins and win nothing or win a massive payout. No rules here.

Best Bonus Buy Slots

It seems like new slots with the 'buy a bonus feature' are released almost weekly now. Here at GoodLuckMate, we're reviewing a whole bunch of new slots every week, and you can always stay informed by following our blog about new slot releases.

However, even though we love new slots, we already have some favorites. Here's our online bonus buy slots games list we believe everyone should try out:

Money Train 2

Money Train 2 is a Relax Gaming slot and part of the Money Train series of slots. It's a 5-reel, 40-payline video slot with a dark theme. This game boasts a solid RTP of 96.40% and it's also a popular buy feature video slot among fans of the options. Players can buy the Money Cart bonus feature for 100x their bet.

Extra Chilli

Extra Chilli is among the most popular games by Big Time Gaming. It has a delicious theme, and boasts the Megaways mechanic. Extra Chilli is also a video slot with the Feature Drop option, which is how BGT has named the buy bonus feature. It costs 50x your bet, and grants free spins.

Deadwood xNudge

Deadwood xNudge is yet another grim and Wild Wild West slot by Nolimit City. The game has made headlines thanks to its graphics and animations. For fans of bonus buy, however, it's an excellent slot for purchasing the bonus rounds. You can buy two special features, one costs 71x your bet, while the other one is 750x your stake.

Iron Bank

Iron Bank is an impressive Relax Gaming video slot telling the story of a group of animals trying to rob a bank in Havana. Sounds random for sure, but the game is very entertaining. Iron Bank also has the buy feature slots option, which gets players free spins with various additions for 100x their bet.

Casinos With Bonus Buy Slots

If you've had enough wondering how to trigger the bonus on slot machines and want to try your luck with a different approach, let us help. We already provided you with an online bonus buy slots list of the top titles.

If you open any of them, you can test out the gameplay in free playing mode right on our website. Alternatively, you will see the best casinos that offer each of the respective titles.

However, it's also good to know what providers typically release buy bonus feature slots and what casinos offer them. As far as game suppliers go, we must mention the likes of Quickspin, NoLimit City, Pragmatic Play, Relax Gaming, and Yggdrasil. Naturally, many other iGaming brands have joined the craze, including ELK Studios, iSoftBet, and NetEnt.

As you can guess, all the best online casino sites work with all or some of these providers. Some of the leading casinos where you can buy bonus feature on online slots are:


Q88Bets is a top-rated bonus buy gambling site that has an amazing 4.8-star GoodLuckMate rating. This online casino is generous, licensed, and safe. It offers thousands of games, and many of those are state-of-the-art slot machines with the buy bonus mechanic.

Gslot Casino

Gslot Casino is another leading online casino with a 4.3-star GoodLuckMate rating and plenty of bonus buy slots. This brand is part of a popular iGaming group known for pampering its new and loyal users. Among the thousands of titles in the Gslot Casino lobby, players will love the wide selection of slot machines with buy feature.


KatsuBet is an excellent gambling site where newbies typically get free spins upon signup. The operator has a 4.5-star GoodLuckMate rating thanks to its great performance across various sectors. KatsuBet has thousands of slots by reputable providers, many of them have the buy bonus option.

Things to Consider When Playing Slots With Buy Feature

The concept may seem cool at first sight. And it really is. However, there are some things you must consider before you purchase a bonus feature.

We listed the essentials below to help you make better choices regarding buy feature slots:

  • Is it profitable – many times it's not, so don't have high expectations.
  • Is there a win guarantee – often there isn't, so set your expectations straight.
  • Do you get to choose – sometimes there are multiple bonus features, and you get to pick which one you want.
  • Impact on active bonus – may be against the rules and considered betting more than the max bet set in the bonus terms.
  • Geo-restrictions – some jurisdictions don't allow bonus buy slot machines, like the UK, for example.

Will You Win by Only Playing Bonus Rounds and Free Spins?

Choosing not to play any regular spins on a video slot with a buy a bonus feature can be tempting, but will it pay off in the long run? The answer to this is, without a doubt, no.

Even though you can be lucky and land massive wins in a bonus round, you will, on average, win less than what you pay to trigger the bonus instantly. If the average win were higher, the casinos would lose money, which is the case for all types of wins in a slot, whether you buy a bonus or just play regular spins.

So, even though we do love bonus buy slots and this new type of feature, it should, without a doubt, be used with caution. Use it when you feel a bit extra lucky or when you're just after the thrill of knowing that you might have a chance to win one of the top prizes in the game.

Good Luck!

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Eve Luneborg
Eve Luneborg
Last Update: 03 Jan 2024
Eve started working at an online casino back in 2014, and she’s been involved in the iGaming industry ever since. Here at GoodLuckMate, she’s our go-to writer for in-depth guides, specialising in anything related to payments and account verification, table game guides and even casino and slot reviews. Eve is also religiously following industry news, keeping a close eye on any regulatory changes, new game releases, upcoming trends and much more.

Are feature buy slots worth it?

A: It depends on what you expect from the bonus buy casino slots. If you want to experience the thrill and test the bonus rounds, then buy feature slots are worth it. If you want to score big wins, there are no guarantees at all.

Are casino bonus buy slot games expensive?

A: Every slot buy feature comes with an individual price. You can check it out before you purchase it. Some are relatively cheap, and others are expensive. If you want to bet $1 per line and the casino bnuy bonus is 700x your bet, you'd have to pay $700 for the feature. Not cheap!

Are buy feature slot machines legal?

A: In the UK, they have been banned and are illegal. In most other jurisdictions, however, the bonus buy feature is perfectly legal. So, it really depends.

What are the best bonus buy slots?

A: We have listed the best buy feature slots on this page. The list includes Extra Chilli, Money Train 2, and Iron Bank. There are plenty of other feature buy slots available, so you can try different themes, special features, etc.

Can I try slot buy feature on mobile devices?

A: Yes, you can try slots with bonus buys on your smartphone or tablet. Most casinos that offer these games are mobile-friendly. And the games themselves typically support mobile play, no download needed.
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