The Double Bubble slot machine features a 5×3 reels layout with a chance to wager on up to 20 pay-lines, a Wild multiplier that shows up on the reels quite often, a special “Pop The Bubble” bonus round game with the potential for great winnings, a traditional pub fruit-machine bonus game that will make your day (even your month!) and a maximum single Jackpot prize of 20,000 credits for a massive £80,000 top prize.

This game is known for its frequent payouts which makes it a thrilling slot to play. It's a fun and rewarding video multi-line slot game developed by GameSys and offered only at the best UK online casinos.

Double Bubble slot


Double Bubble slot Features

  • Reels: 5
  • Winlines: 20
  • Slot Variance: Medium
  • Coin Sizes: 1p - £10
  • Wild Reels: All @ 1x
  • Bonus Games: Pick a Box Bonus
  • Extra features: In-line bonus 22x multiplier
  • Top Jackpot: 20,000 coins
  • RTP: 95.53%

Double Bubble slot Basics

  • Game Type : Video Slot
  • Software : Gamesys

Casino Sites with Double Bubble Slots Online.

Sister Sites
Get 30 Free Spins on Secrets of the Phoenix or Double Bubble when you play £10
*New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins on Secrets of the Phoenix or Double Bubble only. 1p coin size, max lines. Rules apply. 18+. Play Responsibly.
Get 30 Free Spins on Double Bubble or £50 of Free Bingo when you play £10
*New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Double Bubble. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. Rules Apply. 18+ Play Responsibly.
Get 30 Free Spins on Paper Wins or £50 of Free Bingo when you play £10
*New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit.18+. Free Spins: on Paper Wins. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply.
Get 30 Free Spins on Double Bubble OR £50 of Free Bingo when you play £10
*New members only, must opt in. Min £10 deposit & wager. 30 day expiry from deposit. Free Spins: on Double Bubble. 1p coin size, max lines. Bingo: Advertised ticket value based on £1 tickets. Game availability & restrictions apply. Rules Apply. 18+ Play Responsibly.

The Double Bubble slot game is one of the best video slot games from Gamesys and it can be found at a limited number of selected bingo rooms, slots and casino sites that are part of the Gamesys network of sites. You can click here for the full list of casino sites with Double Bubble slot.

This slot machine is one of the top medium variance (risk) slots with a free bonus game that is played on every spin without an additional cost to you.

How much does the Double Bubble slot game pay out?

If you're familiar with the Gamesys video slot games you've probably already noticed that the payout of the games is sometimes not disclosed. Jackpotjoy has now made it public that expected RTP of Double Bubble slot is 96% when playing all 20 winlines and 92.5% if you play between 1 and 19 pay-lines. So I thought it would be a good idea to explain how to Double Bubble slots payout work and how much you can expect as a return.

My session with Double Bubble slot lasted around 30 minutes during which I placed a total of 203 spins with three different wager amounts. First I played a total of 150 spins with a £1 coin playing all 20 paylines, so stakes of £20 per spin. Then I switched to a £0.05 coin on all 20 win-lines and played 3 spins for a total of £1 per spin. And lastly, I played a total of 50 spins with a £4 coin on all 20 winning lines for a total of £80 per spin.

Out of the total 203 spins played on Double Bubble slots there were a total of 88 winnings spins across the three different wagered amounts. To be more specific, the game paid out a total of 55 spins @ £20 per spin, 2 spins @ £1 per spin and lastly 31 spins @ £80 per spin.

How much can you win in the Bubble Bonus game (Pick-a-box)?

Screenshot image of the Bubble Pop bonus in Double bubble slotIn Double Bubble slots game there’s a chance to increase your earnings on every spin thanks to the Bubble Pop Bonus game.

What’s the Bubble Pop Bonus you ask? The Bubble Pop Bonus is a ‘Pick 'emp' style of bonus game which is triggered when the scatter symbol (the Bonus Bubble) shows on reels 1, 3 and 5.

Once the Bubble Pop Bonus game is activated, you will be taken to the bonus game screen which offers you three bubbles to choose from each of which hide a bonus amount.

You must choose one of these three bonus bubbles to reveal the bonus amount hidden within. When the multiplier is revealed, your bonus amount is multiplied by the bet position of the original spin which trigger the bonus game.
Once the Bubble Pop Bonus game is finished, you will return to the usual Double Bubble slot game to continue to play and all the winnings earned during this bonus game are added to your total balance.

Some of the complaints I've read about Double Bubble slots on other websites and forums is the lack of free spins and bonus games. While it's true that there are no Free Spins on Double Bubble there is, however, one Pick 'em style bonus in this game.

In other games like Thunderstruck 2 slot the bonus game is where the money is and I've seen some complains about Double Bubble's bonus game not being too generous. The truth is that yes, you won't be winning millions from this bonus game but you won't be leaving empty-handed either.

The amount you uncover by clicking one of the three bonus balls will be multiplied by 4 which in turn should produce some decent winnings. In my case I got 180 credits in the bonus ball which turned into a total winning of 720 credits (180 x 4). I don't know about you but 720 credits won on a bonus game seems pretty generous to me and it's probably about average when compared to most other video slot games worth your time and pounds.

How much can you win in the In-line bonus game?

Screenshot image of a Line Bonus win in Double Bubble slot machineYou can win up to 22 times your stake when you trigger the In-Line bonus game available in the Double Bubble slot game. If you look closely at the slot screen, you will notice there’s an area right below the reels (see image above); this is known as the Bubble Line and based on my own experience, this bonus game is where you can expect most of your highest earnings to come from. In Double Bubble slot, the Bubble Line Bonus is where the money is!

If you're familiar with the traditional fruit-machines found at pubs around the United Kingdom, you will immediately recognize this style of bonus game. The way this Bubble Line bonus works is that every time you spin the reels, you have a chance to build an additional winning line on this bubble line apart from the winning combinations from the 5×3 reels layout of the game. Whenever you get two, three or more symbols of the same kind on this bubble line AND these symbols also appear on the top reels of the game, you will earn an additional bonus. The bonus amount will depend on the symbol you line up on this bubble line, the number of matching symbols you get (min 2 or 3 depending on the symbol) and the amount of paylines that you are playing.

I've seen some players get confused with how this bonus works, so I'll explain it using the example from the image on the left. In this specific case you can see that I got three (green) Bar symbols on the Bubble Line and because I matched these three Bar symbols with three Bar symbols on reels 1, 4 and 5, I activated the bonus. The amount won on the bonus was 2,200 and I will tell you where this comes from. If you look at the paytable you will see that getting three (green) Bar symbols pays out 100 credits and the bonus rules states that if you're playing all 20 winlines, then your bonus is multiplied by 22. So, 100 credits for getting three Bars times 22 multiplier = 2,200 credits bonus. Pretty neat, isn't?

How much does the Double Bubble Wild Symbol pay?

This Double Bubble slot review found that the wild symbol, represented by the Double Bubble image, as with most Wilds in online video slot games, the wild symbol can substitute any symbol to complete a winning payline except for the Bonus symbol.

Cash prizes that come from winning paylines using the wild symbol are awarded to only one single winning combination per spin. This means that when the Double Bubble wild symbol is used to complete more than one winning payline, the player will cash the prize of the highest value.

Luckily the Wild symbol in Double Bubble slots game seems to show up with an amazing frequency thus helping you create more and more winning combinations. In my experience with the game, the Wild symbol was truly my best friend and alley. As you can see in the image to the right, the Wild symbol can be crucial to complete that winning payline that truly boost your bankroll. In this specific case, the Wild simple helped me build a Five-of-a-Kind winning line using the Super 7 symbol which produced a massive 2,000 credits win.

How many paylines can you bet on Double Bubble?

Screenshot image of Double Bubble slot with all 20 paylines activatedThe fact that Double Bubble slots machine is a multiline game does not mean you're forced to wager on all 20 paylines every time, but doing so if highly recommended because of the reasons highlighted above.

You will notice there are three buttons on the bottom right corner of the game's layout. To choose the number of paylines you want to activate, you can click the ‘Bet One' button. Every time you click this button you will activate an additional winline starting with 1 payline and up to a maximum of 20 winlines. Once you have activated the number of winlines you want, just click the green ‘Spin' button and let the reels do the rest.

If you want to play with the highest chance of winning then you will wager on all 20 paylines, and the fastest way to do this is to simply click the ‘Bet Max' button and let the magic happen. Again, keep in mind that activating more winlines increases your odds of building a winning combination but it will NOT increase the payouts because these are determined by your coin size.

What are the min and max coin sizes available in Double Bubble?

Screenshot image of how to select the coin size in the Double Bubble slot machine gameYou should note that betting on more than one payline will increase your overall stake size (total bet per spin) because your coin size is multiplied by the number of active paylines. For example if you choose a 10p coin size to play Double Bubble slot and you activate all the 20 winlines the game offers, you're total stake/bet per spin will be £2. You will adjust your coin size depending on your bankroll size, your style of play and how much of a risk taker you are.

The coin sizes available in Double Bubble slots range from just 1p and up to £4 for the real High Rollers and professional slot players. Learning how to choose your coin size is essential because this is how you take control over the amount of money you bet on every spin. The coin size is also very important because the payouts on the game will be multiplied by the coin size, so the higher the coin size, the higher the payout!

Does Double Bubble have an Autospin feature?

Yes, you will notice that in Double Bubble slots game (and many other slot machines) there's an ‘Auto Spin' button. This feature gives you the opportunity to choose how many spins you would like to play with the current set up of coin size and paylines and have the game play them out for you without having to click ‘Spin' every time.

Using the Auto Spin feature may seem unnecessary at first and for some players but it's quite handy if you're having longer gaming sessions. You should note that the Auto Spin will stop when a bonus game is triggered and hand over the controls back to you to play out the bonus feature. There is also a ‘Stop' button during the Auto Spin to cancel the feature; thus making sure you're in control of the game all the time.

Well, here you have it, a our comprehensive Double Bubble slots review. As you can see playing is dead simple and you should be up and playing in no time. On that note, why not give it a try now?