Most Popular Online Slots in 2021

It's the clinking coins, the lights, the buzz, the ringing, the jackpot! The most popular game at online casinos is the slot machine. Online games have made great strides since they were first created. The days of three white reels and a few blinking lights are gone.

Machines today feature 3D graphics and sound effects, interactive bonus rounds, and movie franchise themes, taking the playing experience to new heights.

The most popular slots at online casinos are listed below. Many of these slots are older Playtech games.

Starburst Slot

NetEnt's Starburst is a popular online slot game. Initially, Starburst doesn't seem revolutionary, it doesn't need much figuring out, and it doesn't have much to offer. Perhaps that's why it's so beloved. The game does everything that a slot should do perfectly. Starburst is a 5-reel 10-pay line online slot that offers a top prize of 50,000x the stake as well as two different bonus features, making it an attractive choice for both experienced players and beginners. Starburst's simplicity and efficiency, particularly on mobile, will make it hard for anything else to knock it off top spot.

Desert Treasure Slot

Our list also includes Playtech's most popular slot game, Desert Treasure. Several Bonus symbols, Scatter symbols, and Wild symbols are available for players to line up to scoop up the prize. An interactive bonus mode is triggered when a bonus symbol appears on the Oasis. As part of this round, players choose prizes corresponding to the number of bonus symbols. If you line up five Golden Cobra Wil symbols, you'll win the 5,000x jackpot.

Additionally, Desert Treasure has a progressive jackpot called Dollar Ball. It is a side game in which the player picks five numbers out of 49. When the player's combination matches the machine's, a progressive jackpot is won, which takes a small portion of every wager. Thanks to its interactive bonus features, Desert Treasure is near the top of our list of most popular online slots, but it just missed out on number one.

A Night Out Slot

Playtech has developed an interactive online slot called A Night Out. A Night Out is, as the name suggests, a party-themed slot, and like any good party, it's a lot of fun thanks to the Barman Bonus, the Dancing Ladies Scatter, and the Frothy Beer Wild.

In the bonus game, you'll be rewarded with a multiplier and free spins. Five of the Dancing Ladies Scatter symbols will win you 50x your stake, while five of the Wild symbols will win you 10,000x your stake. Also included in A Night Out is a progressive jackpot, which runs simultaneously with the lottery. 1.00 is the fee players can pay to enter the draw. The player wins the big prize if their five numbers match those drawn.

Thunderstruck II Slot

Microgaming's Thunderstruck II is the sequel to its highly successful Thunderstruck slot, one of the most popular online games of all time. There are 243 different ways of winning in this five-reel slot.

Thor's legendary hammer, Mjölnir, serves as the Scatter. When three or more are landed, the bonus rounds will trigger with four levels. Based on how often the bonus feature is triggered, players can progress through them. A five-of-a-kind combination of the Wildstorm symbol triggers the game's 7,000x jackpot. Despite the popularity of the original Thunderstruck, it was difficult for the sequel to overtake it. There's no denying that Thunderstruck II is a better game than its predecessor, which is why it deserves to be included in our most popular list of online slots.

Furious 4 Slot

Furious 4 is the most popular title from Playtech's Age of the Gods series. As the name implies, the game's main symbols include four Greek gods - Apollo, Prometheus, Pandora, and Atlas. Each of the gods will trigger a different game feature, making this one of the more interactive slots available.

With a maximum payout of 10,000x, both seasoned and novice players can enjoy this game.

When three or more of the Golden Throne scatters appear, the slot awards 12 free games. Moreover, the game comes with a progressive jackpot. A life-changing prize can be won with each spin of this round, which triggers at random.

Beach Life Slot

It is not all the time that we are greeted with year-round sunshine or golden sand, but Playtech has done a good job in providing us with sunshine through Beach Life.