There are multiple types of online slots, we did an article on some of the types of slot machines, and we went through some of the criteria and ways in which we distinguish different types of online slots. Some people prefer classic slots with fruity symbols, others like more contemporary looking video slots, whereas a third group sticks to progressive slots where the jackpot prizes are pretty massive.

Regardless of the type and other characteristics and features of slot games, we put together a list of the five most popular online slots, the games that marked the last several years.

Double Bubble

Anybody who has played this game will immediately realise why we’ve listed it as one of the most popular online slots. If you want to know why this game is so popular, you can check Double Bubble SlotsWise, as it covers all important game details. This game features old-fashioned fruit symbols, but they have been given a modern makeover. The graphics may be simple, but the game actually looks exciting, maybe exactly because of that. This game features an RTP percentage that varies and could go between 95.75% and 96.24%, so it is one of the slots where the RTP may differ depending on the way you play and the options you choose during gameplay. The game is available on mobile devices, including smartphones and tablets.


NetEnt is one of the most renowned online slot developers and it is not surprising that we’ve placed one of their games in second position on this list. This slot features a unique theme and an exciting set of symbols and features and everything both on the reels and off them looks original. The game comes with five reels and ten paylines and it can be played with a minimum amount of 10p. Starburst features an RTP of 96.10% and although there are no standard bonus features the game is quite entertaining.

Gonzo’s Quest

Yet another NetEnt slot makes its way on our top 5 list and even though the game was released back in 2011 it is still played today. In fact, it is fair to say that Gonzo’s Quest was a revolutionary game in many ways. It was one of the first slots to include the Avalanche reels feature. Namely, after every win in Gonzo’s Quest, all winning symbols disappeared and new symbols would fall onto their positions creating an opportunity for a subsequent win. This slot also included some novel 3D graphic features unseen in slot games before.

Thunderstruck II

It wouldn’t make sense to make a list of top five slots that wouldn’t include at least one, if not two Microgaming titles. Thunderstruck II is a sequel to the original Thunderstruck. The first version was released in 2004 and while it was the most popular game of its time and very few players suspected that the subsequent release will be even more popular than the original.

Thunderstruck II was released back in 2010 and almost a decade later it still looks exciting and fun to play. You will see Thor, Odin, Loki and Valkyrie on the reels and there are more than few bonus features, including a feature named after each of the characters.

A Night Out

Playtech is one of the biggest competitors of NetEnt and Microgaming and it is rightfully considered to be one of the top three online slot developers. Some of the most exciting and most played slots have been developed by Playtech and it is not easy to pick a game that stands out, but Night Out is definitely one of the most top-notch slots in these past years.

The story of this game and what it is all about is right in the title – it’s a night out. You will see cocktails and girls in cocktail dresses, all the necessities for a fun night out.