Are you a fan of slot machines? Do you need information about the most popular slot machines out there? This makes sense because if you want to be successful while playing these games on your favorite casino site, you must learn more about the trends in this industry.
There are literally hundreds of slot machines on the market and they are usually the main offer of most casino sites. But, with so many solutions, it can be difficult for an average player to decide which slot machine they should choose. This is where our list of 14 most popular slot machines online comes in the picture.
- Find out attractive slot machines with amazing graphics and sounds
- Learn more about online slots with special features
- Figure out how to play the most popular slot machines and how to get the most from them
This selection of slot games that you are about to unveil contains slots with different gameplay and themes. Some of them are brand new while others have been around for a long time. Yet, what they all have in common is that they are played across the globe. We hope that you will enjoy our list of the 14 most popular slot machines online.
1. Gonzo’s Quest
Published: November 2013
Brand: NetEnt
Number of reels: 5
Number of paylines: 20
RTP: 96%
Variance: High
It’s quite easy to find a casino site where you can play Gonzo’s Quest. This slot machine is one of the most popular games made by one of the global leaders in the field of online slots – NetEnt. Gonzo’s Quest is a slot with a story focused on a Spanish conquistador looking for the treasures of America.
In terms of visuals, this is a very attractive 3D game with a colorful design and a background where you can see the animated conquistador and a temple in the jungle. Gonzo’s Quest has 5 reels and 20 paylines. This game features seven regular symbols and all of these symbols are unique and look like masks in specific neutral colors.
The symbol which has a question mark on it is actually the wild symbol. So, this question mark image substitutes for all symbols in this game if it helps players build winning combinations.
The golden token with a mask on it is the so-called free fall symbol. When a player hits three of these symbols on any active payline, they will get ten free spins. Gonzo’s Quest comes with an avalanche system where the winning combinations are replaced with new symbols which could lead to consecutive wins with increasing multipliers.
Why is Gonzo’s Quest popular?
- It has a unique theme
- A slot machine with 3D graphics
- It has three special features
2. Starburst
Published: November 2013
Brand: NetEnt
Number of reels: 5
Number of paylines: 10
RTP: 96.1%
Variance: Low
It seems that 2013 was a very successful year for NetEnt because they’ve made at least two extremely popular slot machines – Gonzo’s Quest and Starburst. Even today, many casino sites are offering free spins for new players in this game.
Starburst is an online slot game with an abstract theme. The story revolves around gems and stars that are orbiting around our planet. Once again, the guys from NetEnt have done an excellent job with the graphics – smooth visual elements in shiny colors and special effects.
Starburst has a simple setup which includes 5 reels and 10 paylines. On the paylines and reels, you can notice seven basic symbols – five of these symbols are represented by gems in different colors while the other two look like a red seven and a gold bar sign. The latter represents the most valuable symbol you can find here.
To make thing more thrilling, they have also added a wild symbol – a rainbow-colored star symbol. This symbol counts as any standard symbol and shows up only on the three central reels. When it does, it expands and cover the reel and activates a re-spin. In theory, you can win up to three re-spins.
Why is Starburst popular?
- A simple gameplay
- Beautiful graphics and sounds
- An upgraded wild symbol which activates re-spins for free
3. Pirates Plenty: The Sunken Treasure
Published: November 2018
Brand: Red Tiger
Number of reels: 5
Number of paylines: 20
RTP: 96.12%
Variance: High
The best slot machines don’t have to be old and Pirates Plenty: The Sunken Treasure is an example of that. This online slot game by Red Tiger was released in 2018 and it has managed to gain thousands of fans around the world. You can probably find this game on your favorite casino site.
The graphics of this online slot look great and include a detailed view of the captain’s cabin in the background and reels that look like maps. Pirates Plenty: The Sunken Treasure is played on 5 reels and has 20 paylines. Players with experience in this area, know that this is a standard matrix, but this game has a few unique features.
First of all, the paytable includes nine regular symbols including four playing card suits, a bottle of rum, crossed pistols, a cannon, a pirate’s hat, and a skull and bones symbol. There are a few special features in this slot. For instance, you can collect map symbols in order to unveil the treasure reel.
When this reel is unlocked you can hit four different wild symbols which are covering entire reels and bring multipliers to the wins. Hit three Ocean Spins symbols to launch a bonus game with extra wilds and a chance to unlock a special prize while using free spins, Finally, the monkey irate is the wild symbol which replaces missing basic symbols.
Why is Pirates Plenty: The Sunken Treasure popular?
- An exciting pirate-themed slot
- Inventive special features
- A good RTP percentage
4. Immortal Romance
Published: December 2011
Brand: Microgaming
Number of reels: 5
Number of paylines: 243 ways to win
RTP: 96.86%
Variance: Medium
Even though it’s quite older compared to most slots here, Immortal Romance by Microgaming definitely deserves to be on this list. We can’t say that this is the best slot machine of all time, but there are a few things that we really like about it. First of all, there’s a story that reminds us of the story found in the Twilight movie and book.
Next, this online slot features nice illustrations that make it look like some sort of a comic book. When it comes to the matrix, you will find an unusual combination of 5 reels and 243 ways to win (no classic paylines). There are 14 symbols in this game including playing card symbols, a book, a castle, a lion token, a logo, and four characters.
The lion is the scatter symbol and it pays out cash prizes regardless of the position on the reels. By completing all payouts for each symbol, you will unlock bonus features which are basically free spins modes with different extras like additional wilds, multipliers for the wins, etc.
Why is Immortal Romance popular?
- Based on a popular vampire book/movie
- Made by one of the most popular software suppliers in this sector
- Unique special features
5. Extra Chilli
Published: April 2018
Brand: Big Time Gaming
Number of reels: 6
Number of paylines: 117649 ways to win
RTP: 96.82%
Variance: –
This list of the best slot machines continues with a very cheerful online slot. Extra Chilli is an online slot made by Big Time Gaming. This slot based on Mexican cuisine features very interesting visual elements including colorful icons on brown reels and what appears to be some sort of a market with food stands in the background. Needless to say, this slot has wonderful animations.
Extra Chilli comes with 6 reels and offers 117649 ways to win. So, this game is part of Big Time Gaming’s Megaways series. The list of regular symbols includes ten symbols – six playing cards in specific colors, and four chili peppers in different colors. The chili symbols can appear extended on the reels.
So, there’s an extra reel in this game which adds a symbol too. When a player hits the H, O, T letters on the reels they will activate 8 free spins. In addition, there are firecracker rockets which represent the wild symbol. The wild replaces all standard symbols to build winning lines.
Why is Extra Chilli popular?
- It offers thousands of ways to win
- It radiates a positive atmosphere thanks to the visuals and the story
- You can enjoy a few bonuses
6. Ancient Fortunes: Zeus
Published: April 2019
Brand: Triple Edge Studios
Number of reels: 5
Number of paylines: 10
RTP: 96.02%
Variance: Medium
If you prefer brand new slot machines, then you should check this one. Ancient Fortunes: Zeus is an online slot game which was released in April 2019 by Triple Edge Studios. It’s a game with impressive graphics which include unique symbols set on reels made of stone and a background where you will find some sort of an ancient building and tons of gold.
Ancient Fortunes: Zeus is a slot game with 5 reels and 10 paylines. On the matrix of this slot game, players will notice eight symbols. They all look like images made of stone which represent different characters or animals including an octopus, a vulture, an ancient god, a warrior, etc. There is also a wild symbol here.
The golden square with an older character is the wild symbol which has the ability to substitute for all symbols. The famous lightning bolt used by Zeus is the free spins symbols. Wait to land three or more of them on the screen to activate between 10 and 20 free spins. Finally, this game has a so-called cascading system which eliminates winning combinations and provides new symbols for free.
Why is Ancient Fortunes: Zeus popular?
- A game with smooth gameplay
- It uses a cascading system
- It has a beautiful design
7. Vikings
Published: November 2018
Brand: NetEnt
Number of reels: 5
Number of paylines: 243 ways to win
RTP: 96.05%
Variance: Medium-High
Are you a fan of the popular TV show called Vikings? Well, NetEnt has created a slot machine which is based on this TV show. In Vikings, players can expect to find their favorite characters like Ragnar, Loki, and Bjorn as well as a few other elements that will remind them of these epic warriors.
This game includes photorealistic images and nice animations as well as a mysterious background where you can see the Nordic countryside. You can find this online slot on many casino sites.
Vikings features 5 reels and offers 243 ways to win. It has 10 symbols on the paytable – five playing cards, four characters, and the TV show’s logo. The high-paying symbols in this game (the characters) can appear extended on the reels. What makes Vikings one of the best slot machines today is the presence of multiple special features and symbols.
For instance, the shield is the free spin symbol. Wait to get three of them on the three central reels to launch so-called raid spins (free spins). Players can also hit a Shield Wall at random – a group of mystery symbols that are revealed later in the game. Of course, there is a wild symbol in this game which substitutes for all regular symbols.
Why is Vikings popular?
- A game based on a popular TV show
- It has beautiful graphics
- It can be found on many casino sites
8. Hit it Big
Published: April 2019
Brand: ELK Studios
Number of reels: 5
Number of paylines: 5
RTP: 96%
Variance: High
There are situations when slot players want to try a classic slot machine. If you are in the mood for playing a game like this, then you can count on Hit It Big. This slot machine was developed by ELK Studios and it’s a brand new online slot.
The game looks like an old slot machine although it comes equipped with colorful visual elements and interesting special effects. Hit It Big comes with 5 reels and 5 paylines. It’s a simple matrix for an upgraded classic slot game.
The symbol payout list includes seven symbols that you’ve probably seen in other slot machines – a single green bar, a double blue bar, a triple red bar, a green seven, a blue seven, a red seven and a triple brown seven. The red wild sign on a crown is the wild symbol. This is the symbol that replaces missing regular symbols to help players create winning lines.
Above and below the reels, there are different features like multipliers, stacked wilds, locked wilds and respins. When you land two matching features below and above the reel, you will activate the special feature. In addition, if you hit three bonus symbols, you will launch a bonus game where you have to move on the matrix to reveal prizes.
Why is Hit It Big popular?
- This is a slot game with a classic design, but modern gameplay
- It comes with many interesting special features
- It has a solid RTP percentage
9. Mustang Gold
Published: January 2019
Brand: Pragmatic Play
Number of reels: 5
Number of paylines: 25
RTP: 96.53%
Variance: Medium-High
Our list of most popular slot machines includes titles from a few different well-established providers. For instance, Mustang Gold is a popular slot machine made by Pragmatic Play with a unique theme. This game’s story takes place in the Old West.
We can’t say that this slot game uses the most refined and modern graphics, but the illustrations look decent and there are nice animated effects that make the game livelier. There are 5 reels and 25 paylines in Mustang Gold. This is a standard matrix for a game like this.
On this set of reels, every player can find eight basic symbols – four playing card symbols, a cowgirl, a cowboy, a black horse, and a white horse. As some of you might have already guessed, there are symbols with special properties too.
First of all, the logo is the wild symbol which replaces missing basic symbols when it can help you build a winning combo. It shows up on all reels except for the first one.
The campfire, on the other hand, is a scatter symbol. Whenever you get at least three of them on the three middle reels, you will activate eight free spins. There is also a horseshoe money symbol which takes a certain value from a predetermined set or jackpot. The collect symbol looks like a sheriff’s badge. In case you land at least one horseshoe symbol and a collect symbol on the fifth reel you will be paid accordingly.
Why is Mustang Gold popular?
- A game with a few interesting special features
- A specific Old West theme
- You can win a jackpot prize
10. Cleopatra
Published: January 2012
Brand: IGT
Number of reels: 5
Number of paylines: 20
RTP: 95.7%
Variance: Medium
To be honest, this popular slot machine might not have the best RTP out there, but it is present on many casino sites. Cleopatra is an Ancient Egyptian-themed online slot game with simple gameplay. Visually, it’s a slot game with decent graphics which include unique symbols on the reels, simple animations and a background that looks like some sort of a temple.
Cleopatra is played on 5 reels and has 20 paylines. In the base game, players might hit an interesting collection of standard symbols including playing cards, the eye of Horus, a scepter, a golden tablet, a hand fan, a scarab and Cleopatra herself.
Actually, Cleopatra is a wild symbol which has the power to substitute for all standard symbols when it can help a player create a winning combo. The wild symbol multiplies the wins. There’s a mask symbol too and this is the scatter symbol. Getting three or more of these symbols on the reels will activate a free spins round.
Why is Cleopatra popular?
- It has an evergreen theme
- It has a simple gameplay
- It’s a game with a decent Return to Player percentage
11. Thunderstruck II
Published: May 2010
Brand: Microgaming
Number of reels: 5
Number of paylines: 243 ways to win
RTP: 96.65%
Variance: Medium
It’s not unusual for casino software developers to create sequels to their popular slot games. Thunderstruck II is a good example of an online slot like this created by Microgaming. This is an upgraded and updated version of the original Thunderstruck game which is based on Norse mythology. When it comes to the graphics, this slot offers access to carefully designed icons set on stone and metal.
Thunderstruck II comes with 5 reels and provides 243 ways to win. There is a list of regular symbols which includes twelve icons – six playing cards, a Viking boat, Asgard, and four divine characters including Thor. The slot’s logo serves as a wild symbol. In other words, it substitutes for all standard symbols when it helps you form winning lines.
When a player hits at least three hammer (Mjolnir) symbols on the reels, they will trigger free spins mode with different options including multiplies for the wins, special symbols, and extra wilds. At random, this online slot turns a few reels into completely wild reels.
Why is Thunderstruck II popular?
- A nice game with a Norse mythology theme
- A plethora of inventive special features
- An upgraded version of the original game from Microgaming
12. Agent Jane Blonde Returns
Published: March 2019
Brand: Stormcraft Studios
Number of reels: 5
Number of paylines: 15
RTP: 96.6%
Variance: Low
Who says that only men can be successful agents? It might take some time to find a good online casino where you can play this slot machine on the Internet, but it’s definitely worth it. Agent Jane Blonde Returns is an online slot which was developed by Stormcraft Studios and comes with a thrilling theme.
The visual elements of this online slot look great – animated effects, polished and shiny icons and a city skyline in the background. This online slot has a standard matrix which includes 5 reels and 15 paylines.
There are nine unique basic symbols in this game – a watch, a laptop, a bunch of passports and some cash, a purse and a gun, a sports car, and four different disguises used by Agent Jane Blonde.
The same agent dressed in a regular outfit is the wild symbol. She substitutes for all basic symbols when needed. The good thing is that she appears stacked on the reels. There is also a logo symbol which acts as a scatter symbol. Wait to land at least two scatters to activate a respins feature with sticky wild symbols.
Why is Agent Jane Blonde Returns popular?
- One of the rare slot games where the main character is a female special agent
- It’s a modern game with relatively high RTP
- It has respins, wilds and scatters
13. Raging Rex
Published: January 2019
Brand: Play’n GO
Number of reels: 6
Number of paylines: 4096 ways to win
RTP: 96.34%
Variance: High
If your favorite casino site has games made by Play’n GO, then you should probably be able to find Raging Rex. This is a relatively new online slot game with a prehistoric theme focused on dinosaurs. We must say that the designers have created excellent visual elements including unique icons in striking colors, animations, and a nice background image.
Raging Rex has an unusual matrix which includes 6 reels and provides 4096 ways to win. Players should expect to find ten unique regular symbols including six mineralized insects, and four dinosaurs. The Rex itself is the wild symbol which replaces for missing basic symbol when required.
If you get at least three meteor scatters anywhere in view you will trigger so-called raging spins – free spins with interesting boosts.
Why is Raging Rex popular?
- It’s a slot game with good RTP
- There are interesting visuals and special effects
- You can trigger an interesting free spins mode
14. Buffalo Blitz
Published: July 2016
Brand: Playtech
Number of reels: 6
Number of paylines: 4096 ways to win
RTP: 95.96%
Variance: High
Next on the list of popular slot machines that you can play online, we have Buffalo Blitz. This is another slot machine made by a famous developer – Playtech. Buffalo Blitz has a little bit of simplistic design and uses simple colors and symbols. In the background, you can notice a valley.
There are 6 reels and 4096 ways to win in Buffalo Blitz. The list of regular symbols in this game includes playing card symbols, a bear, a moose, a raccoon, and a buffalo.
The buffalo is the highest paying symbol in this online slot game. The blue diamond acts as a wild symbol which means that it substitutes for all the symbols we’ve mentioned above when needed. Lastly, if you manage to get at least three free games scatters anywhere in view you will activate up to 100 free spins where the wild can bring different multipliers for the wins.
Why is Buffalo Blitz popular?
- A slot game with stacked symbols
- A slot game where you can win up to 100 free spins
- A free spins mode with wild multipliers
