Double Bubble Online Slot

Published: 14 Mar 2023 | Updated: 14 Mar 2023
Published: 14 Mar 2023 | Updated: 14 Mar 2023
Game Provider
Bonus Feature
Maximum Win
Progressive Jackpots

Licensing Authorities and Testing Agencies

Slot Setup and Betting Options

  • 3D Graphics
  • Mobile Version
  • 5 Reels
  • 5 Rows
  • £0.10 Minimum Bet
  • £10.00 Maximum Bet
  • Win Both ways

Double Bubble Online Slot Review

Get a taste for juicy wins from the Double Bubble online slot. Grapes, oranges, and watermelons feature on the 5 reels and 20 lines, and if any symbols land within a bubble, your bankroll could be bursting with big payouts.

A Bubble Line feature multiplies symbol values by up to 22x, while a special bonus symbol unlocks a bubble popping game with guaranteed wins. Extra prizes could be yours as a wild symbol steps in for others to compete combinations. The bright colours and simple gameplay have made this one of the biggest games at desktop and mobile casinos. 

It’s the work of Roxor Gaming and it’s such as hit that several other slot games and even a Bingo game have been developed around the same theme. The Double Bubble slot has a high volatility and average returns of 96.02%. You can win 22,000x the stake from the perfect combination of symbols and multipliers as you play this massively popular game at the best online casinos.

How to Play the Double Bubble Slot Machine

The graphics are simple, but clear and colourful, with traditional fruit symbols joined by golden bells, a blue 7, plus single, double, and triple BAR icons. The BAR symbols look like soap to cleverly link with the theme of soapy bubbles that fill the background and trigger one of the bonus features. 

You can enjoy this soapy dish on PCs, iOS, Android, and Windows mobiles for between 0.01 and 20.00 per spin. That’s a range of 0.01 to 1.00 on each payline and you can play any number of lines. It’s always best to activate all available paylines, just so you don’t miss out if a valuable combination lands on an inactive line. It’s even more important here, as the Bubble Line bonus only pays the maximum prize when every part of the game is active.

Click the 3 little dots above the reels, followed by the Game Info tab to see how the Double Bubble online slot works. This table also has a list of symbol values, and you win whenever 3, 4, or 5 matched symbols land across a payline from the left. The game logo is a wild symbol that can act as others to help complete wins, and also pays the most, at up to 1,000x the stake.

Multipliers & Other Double Bubble Slot Features

A special Bubble Line system places random symbols within bubbles on the Bubble Line that sits below the main reels. It works like a normal payline but the symbol values are multiplied by the number of lines in play. If you have just a single line active the multiplier is 1x, and with 2 lines in play the multiplier is 2x and so on. If you have all 20 paylines active, the Bubble Line multiplier gets a boost to 22x!

The Bonus symbol on reels 1, 3, and 5 starts a Bubble Popper mini game. Simply tap bubbles to reveal a random prize. 

Slot Features

  • Bonus Buy
  • Gamble Feature
  • Multipliers
  • Quickspin
  • Re-Spins
  • Scatters
  • Wild Symbol

Double Bubble Slot Maximum Wins, Volatility, & Average Returns

A full Bubble Line of game logo symbols with all lines in play will add up to a win of 22,000x the stake. That’s 440,000.00 if you play at the maximum bet of 20.00.

Double Bubble has a high volatility, so it tends to pay out less often than lower volatility games, but the prizes can be higher, which often makes up for this. Just be sure that your bankroll can take the ups and downs that come with high variance gaming. 

Taken as a long-term calculation, the return to players percentage of the Double Bubble slot machine is 96.02%. That means for every 100.00 in bets, it pays out 96.02 in prizes, but like the volatility, this can vary widely over the course of a session on the game.

Our Double Bubble Slot Machine Rating

It’s easy to see why the Double Bubble online slot is so popular. It bursts with colour and uses classic symbols that everyone is familiar with. There are no free spins or respins features, but the Bubble Line and Bubble Popper game can trigger quite often to add extra excitement to any spin.

It’s so popular that a whole range of Double Bubble slots are available, including Triple Jackpot, Megaways, and Fizz versions. You can join the huge number of Double Bubble slot fans as you play it alongside many other hits at the best online slots UK sites featured here.


You can win a maximum of 22,000x your stake from the Double Bubble slot. That’s 440,000.00 at the highest bet level, and it’s possible when the wild symbol fills a special Bubble Line at any time.

The Double Bubble slot works perfectly well on Android phones and tablets, Windows mobiles, iPhones, and iPads. The mobile version is exactly the same as the desktop game so you can enjoy it across all platforms.

The bright, cheerful style, easy gameplay, and opportunity to grab big wins on any spin are some of the reasons why the Double Bubble online slot is so popular. Give it a spin at our recommended casinos to experience the game for yourself.

The Bubble Line below the main Double Bubble slot reels can fill with random symbols on any spin. It pays multiples of the symbol value based on how many paylines are active. This is your path to the biggest wins as you play this slot online.

You can bet as much as 20.00 on each spin of the Double Bubble slot, which is less than many other games, but there is no need to stake this amount if you don’t want to. All of the exciting gameplay and features are available for a minimum of 0.20 with all lines active.

Read about the latest online casino promo codes here at There’s no guarantee that you will find a code linked to the Double Bubble slot, but you could use a promo offer to play a selection of popular games.

If you are in the UK you will need to pass an age conformation check on this site before playing the Double Bubble slot or any other game for free. The rules are different in other countries, so you may be able to simply log on and play it right away.

The Double Bubble slot is part of a hugely successful range of similar games. Join a recommended casino and you could find others in the series, such as Double Bubble Megaways, Double Bubble Jackpot Splash, Double Bubble Fizz, and more.

Roxor Gaming make the Double Bubble slot game, along with other highly popular titles such as Tiki Totems, Paper Wins, Rainbow Riches Rising Wins, and Frog of Riches.

Roxor Gaming launched the Double Bubble slot into the top online casinos on 1st August 2008.

Meet Our Slot Tester

Adam Kenny

Senior content operations specialist at

With over 12 years of experience in online gaming, Adam has seen, played, reviewed, and tested hundreds of slot games. He is always keeping an eye out for new features, themes, and potential jackpots by testing slot games even before they are released to the market.