Double Bubble is an online slot machine at Jackpotjoy Games. This game is so successful that I originally reviewed it back in 2012. In the ever-changing world of online gaming, the fact one game has remained this popular for so long is incredible.

So what about the Double Bubble slot keeps us coming back for more? First off is the fact that it can be played in live mode, using real money, or in demo mode. Demo mode is completely free, although Jackpotjoy does require the user to create an account. There’s no obligation with the free account, and it transfers seamlessly if you ever decide to become a paying player.

The free mode is a nice gaming option for non-gamblers, and it’s convenient for those who want to get a feel for the game before they put their money on the line.

Double Bubble also uses a very colourful, airy theme, but don’t let that deceive you. This fun slots UK game has plenty of unique options that set it apart from most machines.

Double Bubble Slot Features

Double Bubble is a 5-reel, 20-line slot machine. The coin range is 1p to £10, which means the lowest amount you can play the game for is 1p per spin. If you go crazy and bet everything at the maximum, it will cost you £200 per spin.

All win lines are shown as a multiple of the coin size wagered. Simply put, if you land on 5 Double Bubble Wild symbols, you win 20,000 your coin size. So at 1p per spin, you would win £200. However, if you were playing for £1 per spin, you would win £20,000. Basically, the more you play for, the higher the amounts you could win.

The Double Bubble slot game also has a good selection of features: auto-spin, scatter symbols and two bonus features. The game plays exceptionally fast and smooth, and the data readouts are great, which makes auto-spin a great option for regular players trying to maximize their time.

The Double Bubble bonus/scatter symbols can appear and be active on any line, not just the ones where you have placed a bet. When the scatter symbols appear on the first, third and fifth lines, the Bubble Pop bonus feature initiates. First, the game determines all of the winnings, and then it launches a separate window.

Bonus Game

Pop a bubble to win a prize. It really is that simple. There are three bonus bubbles over a series of five boards. Each bubble conceals a multiplier that the game will apply to the current bet.

You select one of the bubbles, and the game adds the winnings to others in that round. The maximum bonus is 22x, and if you happen to be betting big, you could add hundreds of pounds to your win.

There are Double Bubble Bonus symbols. These symbols are not interchangeable. If the Double Bubble, which is wild, exists as part of a winning combination, it multiplies the winnings for that line. The multiplier is two plus the number of lines bet.

If you bet one line, the multiplier would be 3x; if you bet all twenty lines, then the multiplier would be 22x.

Double Bubble Variations

The original Double Bubble that was launched all those years ago proved so successful that three more versions of the game have since been created. All are available to play on Jackpotjoy.

Double Bubble Jackpot
This version of the game comes with its own progressive jackpot. The jackpot will always start at £25,000 and grows until it is won. As a percentage of each bet on the game is added to the prize fund, the more people that play, the bigger it gets.

Interestingly, your chances of winning the jackpot increase with higher bets. So if you play for £2 per spin, your odds of winning are bigger than if you bet 1p per spin.

You can win the jackpot within the Bubble Popper Bonus round.

Double Bubble Triple Jackpot
As with the first two versions, the game plays exactly the same way. Nothing changes except for the fact that there are now three jackpots up for grabs. They are known as the Mini, Major and Grand jackpots.

The Mini jackpot starts at £100, the Major starts at £1000, and the Grand at £25,000. Again, the more you bet per spin, the greater your odds of winning. Though, of course, that is in no way guaranteed, and it is purely down to luck.

Double Bubble Megaways
This is the newest addition to the Double Bubble slot family. In this version, the game is a six-reel slot, and each reel can hold up to seven symbols. A spin on Megaways can have up to 117,649 ways to win.

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It also comes with a bonus game called Bubblemania. Here if you hit on a winning line and all of the symbols are in bubbles, you get into the bonus game. This is where the bubble machine keeps adding extra winning symbols, potentially creating more and bigger wins.

There is also a Free Spins bonus round which is triggered when you land on three or more scatter symbols. There is also a progressive jackpot that can be won in the free spins game. You have to pop the right bubble!

Like most online slots machines, the Double Bubble slot provides its best odds at the maximum bet. If you have a small bankroll and are just playing for fun, stick to the smaller bets.

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