Bubble Craze Slot – 94% RTP, Rules & Features

Quick answer

Bubble Craze is a IGT slot (2015) with 94% RTP and medium volatility. It uses cluster pays with free spins and wild symbols. RTP can vary by casino.

Key specs

RTP: 94%
Volatility: Medium
Grid: 5×5
Pays: Cluster pays
Released: 4 March 2015
Jackpot: None

Not published by the provider: max win, bet range

Top-rated casinos (check the game is available)

We haven't confirmed which partner carries this game.

Aurivo Casino100% up to $1,000 + 200 Free Spins30x bonus
Get 200 spins + 100% at Aurivo Casino (opens in new tab)
18+. New customers. Min dep $20. 30x bonus wagering. Max bet $5. 30 days. 200 spins on Book of Dead at $0.20. Credited in daily batches of 20 over 10 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. 30x bonus wagering requirement. Max bet $5 while wagering. Free spins on Book of Dead at $0.20 per spin. Spins credited in daily batches of 20 over 10 days. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
Velmora150 No-Wager Free Spins Keep every winNo wagering
Claim 150 no-wager spins at Velmora (opens in new tab)
18+. New customers. Min dep $20. No wagering. 7 days. 150 spins on Big Bass Bonanza at $0.10. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $20. No wagering on winnings. Free spins on Big Bass Bonanza at $0.10 per spin. Offer valid 7 days. Full T&Cs apply. Please gamble responsibly.
Kronos Royale200% up to $2,000 + 10% weekly cashback40x bonus
Get 200% bonus at Kronos Royale (opens in new tab)
18+. New customers. Min dep $50. 40x bonus wagering. Max bet $10. 60 days. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $50. 40x bonus wagering requirement. Max bet $10 while wagering. Cashback: 10% of net casino losses each week (Monday to Sunday), paid as cash with no wagering every Monday, up to $500 a week. Offer valid 60 days. Full T&Cs apply. Please gamble responsibly.

Game availability varies by casino and country.

What does an hour cost?

Themes:

Fantasy & magic

Member access — full guide unlocked

How to play Bubble Craze (members only)

Wins pay for groups of matching symbols that touch horizontally or vertically. Larger clusters pay more, and winning clusters usually disappear to make room for new symbols.

Bubble Craze is played on a 5×5 grid with cluster pays.

Set your stake. Choose your total bet per spin. Wins are paid as multiples of this stake.
Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
Trigger the bonus. Land the required scatter symbols to start the free spins feature.

The full Bubble Craze guide: how winnings work, 3 features and 3 strategy tips

Your stake plan: a $50 budget → about $0.25 a spin (medium volatility)
What 94% RTP costs per $100 wagered: $6.00 on average
3 features explained: free spins, cluster pays, wild symbols
Stake plans for $20 to $250 budgets
4 slots with the same style and a higher RTP (up to 98%)
Strategy tips and a session planner for Bubble Craze

Free · no card · 18+ only

Never sold · export or delete any time · What do members get?

Already a member? Get a sign-in link

How winnings work (members only)

What 94% RTP costs per $100 wagered

Because wins don't depend on lines, every symbol in view can count towards a pay. The paytable lists how many matching symbols each tier needs.

What 94% RTP means

Expected return = stake × 94%
Over $100 of total bets, the long-run average loss is $6.00

RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a medium volatility game.

Features explained (members only)

3 features explained: free spins, cluster pays, wild symbols

Free spins

A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.

Cluster pays

Wins are formed by groups of matching symbols touching horizontally or vertically, rather than along lines.

Wild symbols

Wilds substitute for regular paying symbols to help complete winning combinations. They do not normally replace scatter or bonus symbols.

Strategy tips (members only)

Size your stake to the volatility. Medium volatility balances hit rate and win size. Expect dry spells between features, but not extreme swings. A simple rule: bring at least 200 spins' worth of budget, so a $50 budget suggests a stake of about $0.25.

2 more tips and a session planner

Bonus wagering: at 94% RTP, clearing $1,000 of wagering costs about $60.00 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.

More on this in slot RTP and volatility explained and bankroll management.

Does it fit your budget? (members only)

Stake plans for $20 to $250 budgets

For medium volatility we suggest a budget of at least 200 spins. This is what that means for Bubble Craze.

Stake plans for Bubble Craze
Budget	Stake a spin	Bet range	Average cost of 200 spins
$20	$0.10	Bet range not published	$1.20
$50	$0.25	Bet range not published	$3
$100	$0.50	Bet range not published	$6
$250	$1.25	Bet range not published	$15

Averages only: a short session can end far above or below them. Set a loss limit before you play.

Same style, better RTP (members only)

4 slots with the same style and a higher RTP (up to 98%)

Slots with the same mechanic (cluster pays) and volatility (medium) as Bubble Craze, with a higher published RTP. Casinos can still run lower versions of any of them.