Top 10 Online Slots With Most Free Spins in Bonus Game

Last Updated on May 12, 2024

Suppose you were to survey the most popular features among slot players. We can guarantee that free spins are at the very top. Nothing is more satisfying than landing a ton of free spins and just sitting back and watching them reel in the wins.

With that in mind, have you ever wondered which online slots give you a chance at unlocking the most amount of free spins via their bonus rounds? If you have, you can thank us later, as we have put together a list of ten of the best online slots with the most free spins in their bonus games.

Before we continue to the top 10 rankings, let’s look at the 4 Best Casinos to Play Free Spin Slots at:






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The Top 10 Slots & Number of Free Spins

1. Cat Wilde and the Doom of Dead – Unlimited Free Spins

Cat Wilde and the Doom of Dead Slot Machine Screen View

Cat Wilde and the Doom of Dead was one of the most highly anticipated online slot games in 2021 by Play’n GO. This Egyptian-themed slot machine will allow you to discover all of the secrets in the tomb. Its RTP rate is 96.45%, and the maximum jackpot exposure is set at 10,000x the stake.

Free Spins Screenshot on Cat Wilde and the Doom of Dead

To trigger the Free Spins feature in Cat Wilde and the Doom of Dead, players need to land at least three scatters. Thanks to the game’s mechanics, the number of Free Spins that players can receive is unlimited as they can be retriggered infinite times. Other features include Expanding symbols and Wild symbols. In addition, cat Wilde and the Doom of Dead features 20 paylines and winning combinations are created from left to right.


2. Siberian Storm – 240- Free Spins

Siberian Storm Slot Machine

If you prefer to play on 720-ways-to-win slots but do not want to miss out on a good number of free spins, Siberian Storm by IGT is going to be the online slot for you. Siberian Storm will undoubtedly keep you happy as there is the potential to unlock as many as 240 free spins should you get lucky enough.

Tigers Eye Free Spin Symbol

Initially, you can be awarded up to 96 free spins in the base game when you land five of the ‘Tiger Eye’, but during that free spins round, you get an increased chance to add even more of them which could see you land that maximum 240 free spins that the slot has to offer.

Siberian Storm is a popular slot at the online casinos and it has to be said that these free spins are a big reason for that popularity.


3. Cleopatra – 180 Free Spins

Cleopatra Slot Machine Game

IGT is responsible for another free spin hungry slot, with it this time being Cleopatra, the 5-reel, 20-payline affair offering up the potential for as many as 180 free spins for players to take advantage of. Initially, you will have just 15 free spins, but many more can be added during that free spins round to get you closer to that maximum amount.

Cleopatra Free Spins Symbol

Cleopatra is not only an enjoyable slot because of those free spins as you can also benefit from other bonus features on the slot such as wild symbols, multipliers and scatter symbols too. In fact, with a jackpot of 10,000 coins up for grabs from the base game, you might not even need to rely on those free spins.


4. Buffalo King – 100 Free Spins (Top Slot Game)

Bufferlo King slot Machine With 100 Free Spins

Buffalo King is a popular Pragmatic Play slot with a lot to offer. It has fast-paced gameplay, great visual details, and a very lucrative bonus round. Once you try this game, it can quickly become one of your favourite Pragmatic Play slots.

As for the design, this is a 6-reel slot with 4 rows and 4,096 ways to win. The bets in the game range from $0.40 to $60 per spin.

The most attractive part about the game is the Wild symbol. It can land on reels 2, 3, 4, 5, and 6, replacing all other symbols except the bonus. The Wild can come with a random multiplier attached during the bonus round. It can be x2, x3, or x5. If more than one Wilds contribute to a payout, they will be multiplied together. So in a single spin with lots of wilds on the reels, you can walk away with a big payout.

Buffalo King Free Spin Symbol

To trigger the Buffalo King bonus round, you need to land 3, 4, 5, or 6 Bonus symbols. You are awarded 8, 15, 25, and 100 free spins in return. The bonus round can also be re-triggered by landing another set of 2, 3, 4, 5, and 6 bonus symbols. You will get 5, 8, 15, 25, and 100 free spins in return.

The best part is that there is no limit to how many re-triggers you can get. So this is why Buffalo King can produce massive payouts in the bonus round. If you don’t want to wait, you can instantly buy the bonus round by clicking the Buy Free Spins button on the left side of the reels.


5. Fortunes Of Sparta – 100 Free Spins plus 97.04% RTP (The Best Free Spin Slot 2018)

Fortunes Of Sparta Slot

Fortunes Of Sparta is a superb 25 pay lines slot machine from Blueprint Gaming.

The Spartans were a brutal warrior society in ancient Greece (431-404 B.C.).

The game graphics are outstanding on Fortunes Of Sparta, and, in our opinion, it is the most exciting online slot machine on this top 10 list.

When playing the game, you can win up to 100 free spins, this is really a top online slot machine, and when we tested the game, it was so fun, so we played for many hours.

Free Spins on Fortunes Of Sparta

You can play spins for as little as $€£0.25, and if you like to play big, the maximum bet is $€£125 per spin. The game also has a very high 97.04% RTP, and Fortunes Of Sparta is for sure a must-try slot machine.


6. Kronos Slot – 100 Free Spins

Kronos Slots Game

Kronos is another online slot popular among players, and we feel that the potential for 100 free spins will be one of the primary reasons behind this. Developed by WMS, Kronos is a pretty old slot machine released back in 2013. However, it still offers more than enough to hold its own against more modern online slot releases.

Kronos Free Spin Symbol

The game action is played out across 20-paylines. Besides free spins, which are unlocked when you land 5 of the scatter symbols, you will also get features such as stacked wilds and scatter symbols.


7. Rainbow Riches Reels of Gold – 100 Free Spins

Rainbow Riches Reels of Gold View

Rainbow Riches Reels of Gold is another excellent option if you are looking for an online slot with a good number of free spins to enjoy. You can win as many as 100 free spins in this slot machine, and when that happens, you can be pretty damn sure that you are going to earn yourself some good payouts.

Developed by WMS, Rainbow Riches Reels of Gold does not stop there either, as you will be able to witness various types of wild symbols such as stacked wilds, magic wilds and wild bursts. At the same time, other features like multipliers and a bonus game will also add to the entertainment.


8. Mystic Dragon Slot – 100 Free Spins

mystic dragon

Another online slot with 100 free spins is Mystic Dragon by RTG. Here you will have a combination of good bonus features, quality graphics and plenty of entertaining gameplay, but of course, it will be the free spins that you will be hoping to see more than anything

What is great about the free spins round on Mystic Dragon is the fact that you will have stacked wilds helping you along the way as those spins roll out. This gives you far more potential for some handsome wins. There are plenty of other good features for you to enjoy on Mystic Dragon too – but it is an RTG game, and they do not have the best reputation.


9. Gladiator Slot – 100 Free Spins

Gladiator Slot Machine Game View

This is not to be confused with the slot of the same name by Playtech. Instead, this one is the Gladiator slot that Microgaming developed. It has 50-paylines, the sort of top-quality gameplay you would expect from Microgaming and more importantly, 100 free spins that can be unlocked.

As with many other slots on this list, the games scatter symbol will need to be found anywhere on the reels at least five times for those free spins to come your way, but once they do, you can sit back and watch the reels spin and the wins flow into to your account.


10. Zeus – 100 Free Spins

Zeus View

Zeus by WMS Gaming is another online slot worth checking out due to the handsome number of free spins that it could give you. Themed around Greek mythology, this slot has always been a popular one at the online casinos, and with the potential of landing 100 free spins, it is easy to see why.

The Zeus slot machine offers plenty of other good bonus features for players to take advantage of, but it is those free spins where big money will come from. The slots scatter symbol is once again responsible for winning you these free spins with 5, 25, to max 100 on offer. You can even retrigger even more free spins from within that round, so technically, you could get even more than 100 in total.

You can also look forward to reasonable graphics and a bunch of other enjoyable features on this 5-reel, 30-payline slot.


11. Bier Haus – 80 Free Spins

This online slot is all about beer, slots and free spins? This slot machine offers a chance to win up to 80 free spins on this 5-reel, 40-payline slot from WMS. Themed around a German-style pub, Bier Haus provides a colourful slot experience as well as several excellent bonus features, including a free spins round that could see you enjoy the winnings from as many as 80 free spins.

Among those other features that you will find on this includes shifting wilds, locked wilds and scatter symbols.



Free spins will always be one of the most popular bonus features on slots – simply because people love nothing more than getting something for free. The free spin feature is usually one of the more lucrative as well, as it is rare to come away from a session of so many spins without recording some healthy profits.

The ten I have listed above are the ones with the freest slot spins we were able to find, but we are sure you will be able to find a few others for yourselves as well. If we chose a favourite one, it would be the relatively new slot Fortunes Of Sparta, which can be played at online casinos like Don’t forget to let us know if you think we missed any online slots on the above list with high numbers of free spins.


How to get Free Spins on Slot Machines?
Online slots have a bonus game that is triggered randomly. Free spins are usually triggered when you spin the slot game and three or more scatter symbols show on the pay-lines.
How Much can I win on the Free Spins
It depends on how much you bet when the free spin was awarded; the higher the bet, the more you can win. It also depends on the slot game you are playing and how many free spins you win

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