Popular Slots at Unibet Casino

There are many hundreds of slot machines on the schedules at Unibet Casino and the different themes and titles mean that there will be options to suit all styles of player. Having a wide choice means that there is something for everyone but some classic slots games will always have a bigger following.

What makes classic casino games stand out from a crowded pack? Maybe it’s the chance to aim for a huge, life-changing progressive jackpot. Perhaps our players are looking for classic slots that have a nostalgic feel with familiar fruit symbols. Other games might be busy with bonus rounds and a host of additional features.

The following is a list of some of the most popular slot games on our schedules and, as we look at the mechanics behind each one, we might spot a pattern that underlines just why they’re reaching the top of the charts.

Fire Joker

At first glance, Fire Joker fits the bill in terms of classic casino slots. In the base game, we have a number of symbols relating to the golden age of fruit machine play including cherries, plums, lemons, grapes, bars and lucky 7s. Released by the well-known producers at Play’n Go in 2016, those images need to be lined up along one or more of five fixed paylines which have been set down on a 3x3 reel grid.

Many similar games are simple to follow but the best classic slots have bonus options attached and that’s the case with Fire Joker. In addition to the base game, this title provides:

  • Stacked Images
  • Wild Symbols
  • Respins
  • Multipliers

All images can appear stacked on the reels while the joker plays the part of the wild symbol and will replace all others as he goes in search of a winning combination,

Fire Joker has two bonus rounds and the first of these is the Respin of Fire. If two images match on the first two reels, the third reel will respin to see if a third image can drop in to complete the set.

The slot has one final, very special bonus known as the Wheel of Multipliers. If all three reels contain stacked symbols, the wheel will activate and spin automatically. It has 12 different sectors with various multipliers listed up to x10 and the spin will determine which multiplier applies to your win.

In summary, Fire Joker is one of those classic casino games which combines nostalgia with up to date bonus features and at an RTP of 94.23%, there is the potential for big wins. It therefore ticks a number of boxes and, as a great all-rounder, the title is one of our most popular slots.

Jammin’ Jars

There is a clue in the title and Jammin’ Jars is another game that uses classic fruit images at the heart of its gameplay. This time, the clever graphics add a modern twist and the whole layout is reminiscent of an arcade game.

There are other titles which combine arcade play with classic casino slots so why is Jammin’ Jars more popular than the rest?

A look at the base game tells us that we have a larger reel grid than usual with 8x8 dimensions. This time, there are no traditional paylines as the slot uses a clusterpay system implemented by developers Push Gaming. When six or more fruit symbols match in a cluster, a cash prize will boost a player’s bankroll.

Jammin’ Jars therefore offers a slightly different base game but, like all great classic slots, it comes with additional features and special symbols. The bonuses involved include:

  • Sticky Wilds with Increasing Multipliers
  • Free Spins
  • Rainbow Feature with Expanded Symbols

The wild in this slot game is the multicoloured jam jar and it has a traditional role to play in replacing other base images to form a winning cluster if possible. It can also appear as a sticky wild, moving one place along the grid and increasing multipliers up to a maximum of x5 as it goes.

When three or more of those Jam Jar symbols fall into view, the free spins round will activate and six additional spins will be awarded. During this section, the jars that have triggered the feature will remain as locked wilds throughout the round.

As for the Rainbow Feature, this can occur at random in the base game. A curtain will appear and then lift up to reveal a 3x3 fruit symbol which can boost the chances of landing a follow up win.

Jammin’ Jars comes with a RTP level of 96.83% which is above average and it can be a regular payer at times. Once again, we have a busy slot and, like all classic casino games, there are lots of bonuses to aim for in this title.

Book of Dead

Intrepid Explorers contribute to one of the most popular classic slots games genres but Book of Dead is one of the standout titles in this sector. The hero of this title is Rich Wilde who has appeared in a number of classic slots games with this particular release coming online in 2016.

Slot developers Play’n Go have implemented 10 paylines along a 5x3 reel grid and the symbols that players need to match are a mix of generic playing card images along with icons that relate to the theme of hidden treasure.

The bonus features that players are looking for in Book of Dead are:

  • A combined wild and scatter symbol
  • Free spins with expanding icons
  • A Gamble Feature

The gamble button comes along after any win and players get to call red or black on the turn of a card. A correct call will double winnings but an incorrect turn will lose the pot.

The Book of Dead is both the wild and the scatter in this game: As a single symbol, it can replace others as it looks for winning matches. However, three or more of those Book of Dead scatters will issue ten free spins which can be retriggered. During this section, a symbol will be chosen at random to expand and cover all positions on the reel if it lands.

Book of Dead’s RTP is confirmed at 94.25% and the appeal here lies in a slot that tells a story as the action is played out on the reels.

Super Flip

Another top quality release from the Play’n Go stable, Super Flip is one of those classic slots using familiar fruit machine symbols. Released in 2015, there is a 5x3 reel grid in play with the usual aim of lining up those icons along one or more of 20 fixed paylines.

In Super Flip, the bonus features that can come into play are:

  • Wild Symbol
  • Superflip Respin
  • Free Spins

The wild is clearly marked and has a conventional role of replacing others and looking for a winning match. The wild cannot, however, substitute for the scatter which is the game’s logo and this is responsible for activating the free spins section.

At least three of those logo scatters are required and, when they drop, fifteen extra spins are available and these can be retriggered. As for the Superflip respin, this occurs when reels one and two produce matching symbols but there is no match on reel three. The third reel will now respin to see if it can complete a set.

Super Flip has a confirmed RTP of 94.51% and this is another of those classic online casino slots where the theme of nostalgia has been met with a modern twist in terms of bonus features.


Anyone who has played classic casino games, whether on an occasional or more regular basis, will already be familiar with Starburst. It was produced by NetEnt and, having been released back in 2013, it’s one of the oldest-serving classic slots on our lists.

The aim in this slot is to line up brightly coloured gems along one or more of 10 paylines which are laid down on a 5x3 reel grid. Naturally, all popular classic slots have bonus options and, in Starburst, these are:

  • A wild symbol
  • Win both ways feature
  • Expanding wilds and free spins

The Starburst symbol is the wild icon in this game and it has the traditional role of replacing other images while it looks to form a match. However, it has another function as it will expand to cover all positions on a reel while triggering a free spin. As that spin takes place, the expanded wild will lock in position to enhance the opportunity of winning a cash sum.

The win both ways feature in Starburst simply means that wins can be formed from right to left as well as left to right. 

The RTP on Starburst comes in at 96.09% and that’s above average for a slot. Once again, we have one of the more simple classic casino games and that simplicity, together with the addition of a set of bonus features, has helped to make the title a popular choice. 

If you want to experience these popular slots games and more, sign up with Unibet today!

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