10 Most Popular Online Slot Games (Ranked, Reviewed, Compared)

10 Most Popular Online Slot Games (Ranked, Reviewed, Compared)
10 Most Popular Online Slot Games (Ranked, Reviewed, Compared)

Slot games have always been growing in popularity but during 2020 it has sat an all-time high with stay at home online gambling activity increasing and the popularity of online slot sites growing.

The increase in online slot play is partly down to the limited stakes applied in high street betting shops, but also because players have realised the range of slots that can be played at online casino apps.

So how do we know which are the most popular slots games this month? EGR Technology tracks the 50 of the largest online casinos in Europe and records the number of hours each slot spends in the top 10 played games including new slots.

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This article is updated monthly as the new playing figures are released, so check back each month to see which online slots are climbing the popularity table, which are dropping and which mobile casino you can play them at..

You can also check out other articles covering things like the best payout slots and 9 smart ways to win at slots in our casino guide section.

1. Book of Dead Slot Review

Rich Wilde’s Book of Dead Slot Review Summary

The Book of Dead is a high volatility online slot with variable RTP (Check individual casino), playing 5 reels on 3 rows, with Scatters awarding free spins, expanding wilds as well as a gamble feature for any win. Created by Play’n Go it is available is many online casino slot sections.

My View

The Book of Dead online slot is good for players who like simplicity in an online slot game. There are both low and high value tiles to land, and most wins will come from combos of 3 of the same tile. You need 3 x Scatter symbols, That also act as wild in normal and free spin play, to land 10 x free spins.

The free spins feature provides one symbol from all available as a bonus symbol. If you land the bonus symbol on any three lines during free spins they expand for 10x combo wins. Landing three scatter symbols during the free spins creates a free spins retrigger.

An alternative slot to this is the newer Cat Wildes Doom of Dead with expanding wilds and more action

Landing three free spins rounds in the session I played for this review awarded x11, x7 and x23 total stake wins, which were not big given the time between awards.

Where to Play Book of Dead Slot?

All British Casino has a huge range of slots including Book of Dead as part of a wide range of Play’n Go slot options. Rating highly with OLBG casino users, you’ll find slots and more at the casino claiming Great British Excellence.

2. Gonzo’s Quest Megaways

Gonzo’s Quest Megaways Review Summary

Gonzo’s Quest Megaways features 6 cascading reels and exploding winning lines across a maximum of 117649 megaways. Offering free spins, scatters, and bonuses with medium volatility and a 96% return to player score, this Aztec themed online slot from Red Tiger Gaming has a max win multiplier of x21000 and is one of the most popular online slots right now.

Feature Details
Developer Red Tiger
RTP 96%
Theme Aztec
Reel Style 6 Reels
Paylines 117649
Max Win x21000
Volatility Medium
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes

casino

My View

I am a Red Tiger game fan it has to be said, I find the bonus rounds to have the potential to be crazy, but by the same token, both Red Tiger and independently megaways games can frustrating in the wait to land free spins and/or bonuses. Gonzo’s Quest was primer fro a Megaways upgrade from the incredibly popular original slot on the same theme, and it has worked well.

The graphics are superb and the multiplier has you on the edge of your gaming chair for the next win to cascade in, especially when hitting free spins when the multiplier can rise to a juicy 15x for big wins.

With minimum total stakes as low as £0.20p it is accessible for all players and the x21000 max win can leave the 20p players with very nice returns.

I particularly enjoy the Wild Symbol also acting with the scatters to land the free spins round. It is not often the wild will replace a scatter with slots.

Where to Play Gonzo’s Quest Megaways Slot?

Try the Pots of Luck casino. it is an Irish themed casino and you will find a menu tab to highlight Irish themed slots, but all the favourite slots are available in a huge selection including daily Drops & Wins jackpots.

3. Starburst Review

Starburst Review Summary

Starburst online slot offers a 96% return to player in a space theme over 5 reels and 3 rows. There are few features but expanding wilds triggering respins. This is a high volatility slot from NetEnt and one of the most popular online slots in recent years with the best wins coming from respin combos.

Feature Details
Developer NetEnt
RTP 96.09%
Theme Space
Reel Style 5 Reels 3 Rows
Paylines 10
Max Win x250
Volatility High
Free Spins No
Scatters No
Bonus No
Wilds Expanding

My View

Despite this being consistently on of the most popular online slots available, I have never been a huge fan thanks tot he high volatility and simplicity of the gameplay. maybe that’s what makes it so popular. There is a full review of the slot available on the Best NetEnt slots page

Where to Play Starburst Online Slot?

Casushi Casino often has promotions based around NetEnt slots and offer a huge range of online fruit machine to choose from. As one of the newer casino sites here on OLBG they have proven quite popular already, mainly down to an excellent welcome offer.

4. Eye of Horus

Eye of Horus Review Summary

Eye of Horus is an Egyptian based online slot with a retro music score reminiscent of the land-based casinos. With 5 reels and 3 rows, wilds, scatters and bonuses, free spins are awarded and players are paid at a 96.31% RTP. Minimum stakes are @0.10 per spin with 10 win lines in this popular online slot from Blueprint gaming.

Feature Details
Developer Blueprint/Merkur
RTP 96.31%
Theme Egypt
Reel Style 5 Reels 3 Rows
Paylines 10
Max Win x500
Volatility Medium
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes

My View

The music may do your head in, Fishin Frenzy fans will be used to it, but this Egyptian themed slot will keep you entertained with medium volatility. The expanding wilds add a dimension to keep you ever watchful for the high-value symbols lining up. the 10 win lines lead to infrequent wins in some runs and belie the medium volatility claims, however, normal play wins can pay well to maintain that claim with 5 of a kind wins and the expanding wilds increasing the winning lines.

Overall a good game that may just need the sound effects turned down!

Which Casino Has Eye of Horus Online Slot?

SlotsMillions hosts Eye of Horus but also the ‘gambler’ version and the ‘megaways version too. That’s just a hint at the huge range of slots available at this online casino that has become a firm favourite since being listed on the pages of OLBG

5. Wolf Gold

Wolf Gold Slot Review Summary

Wolf Gold offers 5 reels snd 3 rows of online slot action with scatters, free spins, expanding wilds and a jackpot bonus round, which can repeat. A medium volatility slot with 96%RTP, Pragmatic Play has produced one of the most popular online slots of the year with a 25p minimum stake and a progressive jackpot.

Feature Details
Developer Pragmatic Play
RTP 96%
Theme Wild Animals
Reel Style 5 Reels 3 Rows
Paylines 25
Max Win x200
Volatility Medium
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes +Expanding

My View

A favourite of mine based on the varied gameplay, wild wolf symbols, and frequent wins across 25 win lines. The Wolf symbols are wild and the reels slow when you are on the verge of a significant win to build the anticipation The scatters are the aim for 5 free spins with jumbo symbol, or the moons with attached values that if you hit 6 gives you entry to the jackpot bonus round.

Free Spins

Free spins are awarded by landing three or more scatter symbols, which will provide 5 free spins. This seems not many, but reels 2, 3, and 4, turn into a single jumbo symbol offering chances of multiple 4 or 5 of a kind wins

Jackpot Bonus

Land 6 moon with value symbols anywhere to start the jackpot bonus round. here you have 3 respin chances to land further moons with more values all going into the bonus round win pot. You also have a chance to win the x30 mini jackpot, the x100 Major jackpot, or x1000 mega jackpot. Each time a moon is landed the respins reset at 3 spins. Complete the board and fill all 15 slots for a retrigger of the bonus. Landing this bonus whilst playing fo this review provided a x45 total stake win – Thanks!

Which Casino Has Wolf Gold Online Slot?

PlayOJO Mobile Casino brings you the best online slot games designed specifically for mobile users. Check out the review below or the welcome offer to try out Wolf Gold from Pragmatic play

. Bonanza

Bonanza Megaways Slot Review Summary

Bonanza was one of the first megaways slots released from Big Time Gaming, offering a generous 96% RTP and 117649 possible win lines. With an exciting bonus round with multipliers won by landing the letters G,O,L,D through the cascading wins, big bonus wins are not uncommon.

Feature Details
Developer Big Time Gaming
RTP 96.00%
Theme Gold Mine
Reel Style Megaways
Paylines 117649
Max Win
Volatility Medium
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes

casino

My View

As slot development continues at a pace, Bonanza still remains one of the best Megaways slots online. The premise is simple, wins are calculated by multiplying the number of symbols on each reel. If you land K’s and you have 1 on the first reel 3 on the second and a further 2 on the third reel, you win 1x3x2=6x the prize value. Wins can soon mount up when landing 5 or 6 on a reel in a winning combo, especially when hitting the high-value symbols.

The GOLD bonus doesn’t drop often but when it lands, each win and subsequent cascading wins increase the win multiplier by x1, it is not uncommon to see the multiplier hitting above x10 and then a big win becomes a serious win.

Fast-paced with furious musical accompaniment, Bonanza may be getting old but it remains in the most popular slots for a reason.

Which Casino Has Bonanza Online Slot?

William Hill is primarily a sports betting site but the casino offers one of the largest slot selections online. Find Bonanza and a whole lot more after registering a new account and taking advantage of the current welcome offer.

7. Legacy of Dead

Legacy of Dead Slot Review Summary

The Legacy of Dead online slot from Play’n Go offers 5 reels and 3 rows of action with wilds, scatters and free spins. The 96.58% RTP is one of the highest of the popular slots and an Egyptian theme will remind you of the Book of Dead or Doom of Dead slots. 10 Paylines offer up to x5000 top prize

Feature Details
Developer Play’n GO
RTP 96.58%
Theme Egyptian
Reel Style 5 Reels 3 Rows
Paylines 10
Max Win x5000
Volatility High
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes

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My View

This online slot is very much in the series that has developed into the Rich Wilde and Cat Wilde titles of Book of Dead and Doom of Dead. It offers less action than the other two, Wilds are static and the bonus round has less features. So there are options if there is not enough going on in this slot, to go for the other two. However, as is the theme through this list of most popular online slots, simplicity seems to be the key.

The less going on, the more popular the slot seems to be in terms of playing time, so give it a go at the casino below.

Which Casino Has Legacy of Dead Online Slot?

32Red boasts one of the largest game selections of any online casino. This huge and established casino brand have various free spins offers and promotions for existing customers with instant withdrawals to boot.

8. Gonzo’s Quest

Gonzo’s Quest Slot Review Summary

Gonzo’s Quest online slot was a long time leader of the most popular online slots, offering a 96% RTU, and cascading wins as one of the first tile falling titles for slots. Scatters, Free Spins and huge jackpots keep this Aztec themed Slot from NetEnt with 20 win lines still high in the most popular charts.

Feature Details
Developer NetEnt
RTP 96%
Theme Aztec
Reel Style
Paylines 20
Max Win x2500
Volatility Medium
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes

My View

Gonzo’s Quest was never one of my favourite slots as it took me a long time to get used to the cascading tile format. That said, it has grown on me since, but was tailormade for the megaways format, a version of which has since been released and rides higher in this most popular online slot chart. Still, the action can be fast and furious and the bonus rounds very rewarding if you are fortunate enough to land one.

Which Casino Has Gonzo’s Quest Online Slot?

LeoVegas is a multi-award winning online casino voted best mobile casino on more than one occasion. So if you are someone who likes to play casino on the go on your mobile, LeoVegas might be the right fit for you to play Gonzo’s quest online.

9. Fishin Frenzy

Fishin Frenzy Slot Review Summary

Developed by Blueprint gaming Fishin Frenzy has been a hugely popular online slot since release. the 96,12% RTO offers 5 reels and 3 rows of online slot action, and a huge x5000 top prize. Medium volatility provides Scatters and a free spin bonus round that can pay huge prizes. An all-time favourite online slot

Feature Details
Developer Blueprint
RTP 96.12%
Theme Fishing
Reel Style 5 Reels 3 Rows
Paylines 10
Max Win x5000
Volatility Medium
Free Spins Yes
Scatters Yes
Bonus Yes
Wilds Yes

fishin frenzy

My View

Another slot on the most popular list that took a long time for me to appreciate. The medium volatility belies some fo the losing streaks you can have on this cash guzzler, and the bonus rounds can frustrate returning very small wins. However, when this slot goes into pay mode, it can go crazy. I personally would pitch this as high volatile but hey. Lining up the fish symbols in normal play, will provide nice wins, but land them in the bonus round after hitting 3 or more scatter can be super lucrative if the fisherman lands to reel them in.

A thoroughly rewarding slot if you hit it at the right time, but a real cash guzzler if you time it wrong. And look out of you hit four or more scatters for free spins – Expect fireworks!

Which Casino Has Fishin Frenzy Online Slot?

Yako Casinos host many of the most popular online slots including Fishin Frenzy and often have free spins promotions to try out games. The perfect idea to give Fishin Frenzy a go, and see if you can land the 3 scatter and enjoy a bonus round of fishing for cash.

10. Reactoonz

Reactoonz Slot Review Summary

Reactoonz video slot provides a different take on traditional slots by offering a cascading 7×7 symbol grid and cluster wins. Highly volatile huge wins can be achieved as the bonus rounds trigger and huge multiples and clusters form. 96.5%RTP and a max win of x4750 from Play’n Go, Reactoonz can also have long and quick losing streaks.

Feature Details
Developer Play’n Go
RTP 96.51%
Theme Space
Reel Style 7×7 Grid
Paylines Clusters (Min 5)
Max Win x4750
Volatility High
Free Spins Yes
Scatters No
Bonus Yes
Wilds Yes

reactoonz

My View

This game is just a little too volatile for me. Not unusual to go 20 spins without even a sniff of a win, it can drive you crazy but when the action starts, you’ve no idea where to look there is so much going on. Winning clusters pay, and disappear tobe replaced by more symbols, more wins, more explosion and then various bonus features for running up consecutive wins that lad to more wins. It’s mad, and throughout the time I played, I don’t think I had a clue what was going on.

The bonus rounds can be even crazier and will pay well, with a max win of x4750

Which Casino Has Reactoonz Online Slot?

Mansion Casino is a huge casino brand delivering the same quality and service online that they are famed for in the City. With Reactoonz and other Play’n Go slots available, they also have a good current welcome offer which you can see belo

5 Ratings

Huge Casino brand with all the favourite Casino games, on an easy to navigate mobile site, Super Quick Withdrawals and Speedy Registration

Read Our Review

  • Over 200 Games
  • Easy Sign Procedure
  • Very Quick Withdrawal Processing
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