Double Bubble: Bubble Line, Coin Awards and Similar Slots

Published: October 2020 | Reviewed by the SlotsLike editorial team

Double Bubble is a five-reel fruit slot with a separate Bubble Line win area below the main reels. Bubbled symbols move into that area; its multiplier depends on active lines. The original also has a three-bubble pick bonus. Bubbling Falls and Double Bubble Cash Wall offer different ways to extend that idea.

The original Double Bubble belongs to the Gamesys/Roxor game catalogue and has become a recognisable name on UK bingo and casino sites. Its artwork is a simple fruit-machine display, but the second win area adds a separate result to watch. This review concerns that original game. Double Bubble Jackpot, Cash Wall, Fizz and Megaways are separate titles; the shared brand name is not a rulebook for all of them.

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Double Bubble Pros and Cons

The original combines fixed-line fruit wins with a separate Bubble Line and a short pick feature. Those concrete distinctions are more useful than a promise of frequent small wins or a longer-lasting balance.

Pros	Cons
Bubbled symbols form a separate result in the win area below the reels	The original offers a short pick feature rather than a free-game sequence
The active-line setting explains the Bubble Line multiplier	A main-reel line win does not automatically qualify for a Bubble Line boost
Cash Wall and Bubbling Falls provide specific, different bubble-feature comparisons	Return figures belong to particular versions; the name alone does not identify the RTP
Coin awards can be converted into cash using the actual selected coin value	The coin amount and total wager must be separated before comparing maximums
The pick feature presents three bubbles and asks for one selection	Older reel and control artwork is less detailed than later Double Bubble editions

How Double Bubble Works

Double Bubble uses five reels and three visible rows, with up to twenty active paylines in the original description. The main reels form ordinary line combinations. Symbols appearing inside bubbles are also placed in a second win area, the Bubble Line, below the reel set. This is not simply the middle horizontal payline with a special colour. The original screenshot makes the separation visible: the reels occupy the main frame, and the Bubble Line display sits underneath.

The Double Bubble logo acts as the wild substitute for ordinary symbols, excluding the Bonus symbol. The bonus trigger and the bubble-covered symbols have different roles. Follow the main line result, the second-area result and the Bonus symbols separately. A symbol helping an ordinary combination need not also create a paying Bubble Line result.

Symbols and Paytable

Fruit, bars and bells give the game its traditional reel identity. Their cash awards depend on the applicable paytable and selected coin value. The logo’s substitute function helps complete combinations, while bubble coverings send symbols to the separate win area. Counting matching fruit on the main display is therefore only one part of following a result. The row of line markers at each side identifies the main-reel paths; the separate Bubble Line label below identifies another area.

The Bubble Line and Multiplier

A symbol inside a bubble is placed along the second Bubble Line win area. If the symbols there form a paying combination, the Bubble Line multiplier applies. The original operator rules tie this multiplier to the number of active paylines, with a special 22x value when all twenty are active. It is not a counter that automatically climbs through a succession of paid spins. The main-reel award should be read separately from this second-area combination.

The Bubble Bonus

Bonus symbols on reels one, three and five start Pop the Bubble. The feature presents three bubbles and asks for one choice; a revealed coin multiplier determines the award. It is not a repeated pick-until-Collect feature. The selection is the visible action, but the hidden prize is not knowable beforehand. The original does not have a scatter-triggered free-spins round. A casino’s additional jackpot option or a separately titled Double Bubble Jackpot is also a distinct product condition, rather than a hidden stage of this pick bonus.

Coin size, twenty lines and the top line award

The original description expresses the five-wild line award as 20,000 times coin size. That unit is crucial. Suppose an illustrative version uses a 1p coin and twenty lines at one coin per line. The total stake is 20p, while a 20,000-coin award is £200. Dividing £200 by 20p gives 1,000 times the total stake, not 20,000 times it.

That calculation does not assert a complete-round ceiling. More than one paying line or another qualifying event may contribute to the round total, and the loaded game can have its own overall limit. It simply explains why a large paytable number cannot be read as a total-stake multiple without knowing its unit.

The Bubble Line is a different calculation again. Imagine its qualifying prize is £2 before an applicable 22x boost. The result is £44. It does not follow that every ordinary £2 line win is multiplied by twenty-two. First identify the win area receiving the prize, then apply the rule for that area. The example amounts are illustrative rather than a recorded round.

At a hypothetical ten-line setting with one 1p coin per line, the total stake is 10p. A £2 award would be twenty times that total stake. At twenty lines and the same coin size, the total stake is 20p and the same £2 cash award is ten times it. Comparing cash, coins and total-stake multiples separately prevents a larger line count from being mistaken for a free increase in return.

Bubbling Falls: a Bubble Line with cascading wins

Bubbling Falls combines its Bubble Line with Raining Reels. Winning symbols disappear and replacements can create more wins on the same wager. Four or more consecutive wins lead to a Pearl Pick, and its separate Bubble Line pays qualifying combinations at 25x. These are concrete additions to compare with the original.

The cascade is the key distinction. In Double Bubble, watch symbols arriving in the second win area after the main result. In Bubbling Falls, also watch how removing a paying combination permits another main-reel evaluation. A longer animation need not mean a new paid spin: several results can belong to the same wager.

The Pearl Pick condition also differs from the original Bonus symbols on reels one, three and five. It measures a run of consecutive wins within the cascade sequence. A reader attracted to repeated reel activity has a clear reason to examine this title, while someone wanting the shortest original feature has a clear reason to retain Double Bubble as the comparison point.

Double Bubble Cash Wall: bubbles that move through a grid

Cash Wall’s own feature description identifies a five-column, three-row Bubble Grid and five pipes above it. A bubble leaving a pipe enters the bottom position of that column. Existing bubbles move upwards and the top bubble leaves the grid. The bubble can carry a cash value or free Double Bubble spins.

This makes movement through a column the useful comparison, rather than an ordinary fruit combination on one drawn line. Keep the bubble’s displayed amount separate from a spin award inside it. A cash label represents an amount, while a free-spin label represents a further game event. They should not be added as though both were pounds.

Cash Wall is a separate game, even when a casino promotes it alongside the original using the same bright logo style. Its pipes and Bubble Grid are not hidden controls in the original screenshot. Read the whole title before interpreting a bonus or a maximum, and compare the particular event you want to follow: a second-area combination, a cascade or a value-bearing bubble moving upwards.

Our Verdict

Double Bubble is the relevant comparison for someone who wants to follow two win areas on a compact fruit display. Its Bubble Line connects symbols from the main reels to a separate result, while the three-bubble bonus stays brief. The limitations are equally specific: no original free-game sequence, a coin-style award structure that needs careful conversion, and simpler visual progression than the later family titles. Bubbling Falls adds cascading reel wins; Cash Wall moves value-bearing bubbles through a grid. Those changes offer a more useful choice than assuming that an older, simpler game preserves a balance better.

SlotsLike rating: 6/10

Games like Double Bubble

The illustrated alternatives below use different combinations of line wins, respins and wild behaviour. Cosmic Fusion offers a wild-respin contrast, while Chibeasties 2 has selectable wild modes. Celebrity in the Jungle and Castles in the Clouds broaden the settings. None should inherit the Bubble Line rule simply because the archive groups them near Double Bubble.

Celebrity in the Jungle is a jungle-setting alternative with a conventional reel display. Its illustrated catalogue profile is a wider theme route, rather than a second version of Double Bubble. A different background and headline RTP do not establish the same second-area win or the same coin structure. Use the title’s own information screen for its actual line paths and feature entry, and use the substantial Bubbling Falls comparison above when the Bubble Line itself is the attraction. This keeps the visual alternative distinct from the closer mechanical relationship.

Cosmic Fusion is useful as a contrast around what a special symbol changes. Its wild-respin feature changes coverage on the main reel set and gives those reels another result. Double Bubble instead places bubbled symbols into a separate win area. Both can produce an additional event beyond the first ordinary line evaluation, but the position and cause of that event differ. The cosmic gemstone setting is secondary to that distinction. Do not apply Double Bubble’s active-line multiplier to a Cosmic Fusion respin, or assume that a similar stated return guarantees similar individual results.

Castles in the Clouds is a wider adventure-setting comparison with several bonus routes. A wheel, prize selection and respin are different event types: a wheel selects an award, a pick reveals a prize, and a respin creates another reel result. The original Double Bubble’s short one-from-three selection should not be expanded into all three merely because an archive feature list groups them together. Compare the actual trigger and stopping condition in Castles in the Clouds rather than importing a twenty-line Bubble Line calculation. Its illustrated profile supplies another setting, with different feature structure.

Chibeasties 2 offers four wild modes and a free-game choice. The modes alter how wilds mirror, spread, teleport or expand, making their changing reel coverage the meaningful comparison. Double Bubble has neither that mode selection nor a separate free-game sequence. Choose Chibeasties 2 to compare a more involved wild system, and the original Double Bubble for its main reels plus second win area. The fact that both can show twenty lines does not establish the same trigger or multiplier. Their individual mode and paytable rules remain separate.

Celebrity in the Jungle: a broader visual alternative. Its jungle setting and ordinary line display do not reproduce the separate Bubble Line. Confirm the precise title before comparing stake or return.

Cosmic Fusion: compare the main-reel wild respin with Double Bubble’s second-area evaluation. The same word “multiplier” does not establish which result receives the increase.

Castles in the Clouds: compare the feature type and its stopping condition. A multi-route bonus game is different from selecting one of three bubbles.

Chibeasties 2: compare selected wild movement in free games with the original’s fixed extra win area. The wild mode changes the next board; the Bubble Line measures a separate symbol combination.

More slots along the lines of Double Bubble

Double Bubble’s original main reels use a bright fruit-machine setting, with fruit, bars and bells surrounded by bubbles. The picture theme identifies the game’s appearance; the separate Bubble Line explains what changes the result. A fruit image on an ordinary reel and a bubbled symbol copied into the lower win area have different roles. The lower area is therefore the useful point of comparison with Bubbling Falls, rather than the brightness of the artwork alone. This helps distinguish the original from a game that merely has a similar colour palette.

The adventure illustration below is a broader archive route. Its landscape is not a view of Double Bubble’s original reels. Aldos Journey, Cosmic Fusion Mini, California Gold and Burglin Bob change the setting; the substantial Bubbling Falls and Cash Wall profiles above explain closer bubble-related mechanics. For either kind of comparison, use the complete title and feature trigger before transferring a payout example between games.

Double Bubble’s pastel fruit and bubble design identifies the original. Bars, bells and fruit are ordinary reel symbols; a bubble covering supplies a separate mechanical role. That is more precise than describing the original as an adventure game.

More Adventure themed slots to try

The landscape picture supplies a broader adventure-theme link, while the fruit-and-bubble display belongs to the original Double Bubble. Gamesys is the historical catalogue label on this site. Roxor is the game studio identified by current original-game operator descriptions, and Aristocrat completed its acquisition in February 2023. A casino’s consumer brand and a game studio have separate roles: a brand appearing beside this game does not establish studio ownership or promise current availability of a particular mathematical build. The studio paragraph below supplies the primary acquisition source. Its illustrated catalogue offers other Gamesys-era game routes with their own bonuses and reel formats.

Aldos Journey, Cosmic Fusion Mini, California Gold and Burglin Bob are broader archive alternatives by setting. They are not Double Bubble editions and should not inherit its Bubble Line or Pop the Bubble rules.

Behind Double Bubble: Gamesys

Double Bubble began in the Gamesys game catalogue and is presented by operators under Roxor Gaming. Aristocrat announced the completed Roxor acquisition in February 2023. The game studio and the business operating a casino account are separate roles. Bally’s ownership of the former Gamesys consumer business is not evidence that Roxor remains a Bally’s-owned studio.

Pirates Plunder, Chuzzle, Winstones and Battleship Wild Targets are other routes through this site’s Gamesys catalogue. A shared historical catalogue provides the relationship; each title’s feature description provides the mechanical comparison. For the closest connection to the Bubble Line itself, use Bubbling Falls rather than a supplier label alone.

Double Bubble: Key Stats

The original’s reel count and second win area are distinct from version-specific RTP, coin settings and payout limits. The historic ranks in this table are catalogue positions, not live measures of popularity or proof of a better expected session.

Double Bubble — Key Stats
Name:	Double Bubble
Provider:	Gamesys/Roxor catalogue; Roxor acquired by Aristocrat
Developer Rank:	Historical catalogue position; not a current popularity measure
RTP:	Historical catalogue 96.02%; read the loaded configuration
RTP Category:	Medium-High
RTP Rank:	Historical catalogue position; not a current popularity measure
Feature Description:	Separate Bubble Line win area; three-bubble pick; ordinary wild substitution
Feature Categories:	Bubble Line multiplier and Pop the Bubble selection
Reels:	5
Rows:	3
Paylines:	20
Volatility:	Version-specific; no session-length guarantee
Volatility Rank:	Historical catalogue position; not a current popularity measure
Min Bet:	Read the offered game’s total-stake limits
Max Bet:	Read the offered game’s total-stake limits
Max Win:	Five-wild line award: 20,000 × coin size in original operator description; check round limit
Slotslike Rank:	Historical catalogue position; not a current popularity measure

Double Bubble slot information last reviewed: May 2026

Double Bubble screenshot

Games with the same features as Double Bubble

The original has ordinary paylines, a separate Bubble Line evaluation and Pop the Bubble. A broad multiplier category does not mean that every recommended game uses active lines to set a second-area multiplier.

Slot games with Increasing Multipliers

Other matching slots with Increasing Multipliers are Spartacus, Furballs, Adelia the Fortune Wielder and Redroo.

Double Bubble Slot FAQs

What is the RTP of Double Bubble?

Read the RTP in the offered game’s help. The historical catalogue reference is 96.02%, but it is not a certified universal return across every casino or later Double Bubble title. The game name and familiar fruit artwork do not identify a mathematical configuration.

What is the Bubble Line in Double Bubble?

The Bubble Line is a second win area beneath the main reels. Symbols landing inside bubbles are placed there. A paying combination receives a multiplier related to active lines, with 22x when twenty lines are active in the original operator description.

Does Double Bubble have free spins?

The original has no free-game round. Bonus symbols on reels one, three and five start a selection from three bubbles. That short coin-prize pick is different from a repeated pick-until-Collect bonus and from a free-spin promotion offered by a casino.

What is the maximum win on Double Bubble?

The original operator description states a top line award of 20,000 times coin size for five wilds. That is not automatically 20,000 times the total stake. Convert the award using the selected coin value and the total wager; see the worked example above. Check the loaded complete-round limit separately.

Who makes Double Bubble and is it UK-licensed?

The original game is associated with Gamesys and Roxor Gaming. Aristocrat completed its Roxor acquisition in 2023. The game supplier is distinct from the company operating a casino account, so a consumer-brand ownership change should not be substituted for the studio history.

Is Double Bubble high or low volatility?

A volatility label does not provide a reliable hit frequency or a predictable session length. The original’s compact display and short pick bonus describe its format, rather than promising that a small budget will last longer.

Can I play Double Bubble for free?

There is no Double Bubble demo launcher shown in this article. The review and comparison links remain available. If you use a practice version elsewhere, confirm the full title and configuration, since Cash Wall and Megaways have different features.

What are the best slots like Double Bubble?

Bubbling Falls is the closer comparison for a Bubble Line combined with cascading wins. Double Bubble Cash Wall uses bubbles carrying values or spins in a grid. Cosmic Fusion and Chibeasties 2 offer different wild/respins or mode-choice comparisons. Their rules should be compared individually.