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Coral Nebula · Climbing free spins

Bubble Reef Express

A glass bubble train looping through coral arches.

Guest machine

Open Bubble Reef Express

This machine welcomes guests. Tick two boxes for a two-hour guest pass, or join free to open all 36.

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About Bubble Reef Express

Inside a giant bubble floating in space, a glass train loops through coral arches with a carriage full of chattering fish. Seashell tickets get punched and starfish wave from the platform. Three shimmering pearl bubbles start free spins, and the multiplier rises one stop at a time on every spin, x2, then x3, then x4, all the way down the line.

Measured return96.11%
Hit rate31.8%
Free spins1 in 130
VolatilityMedium

Measured over 10,000,000 spins of this page’s own engine (±0.17); the four pots add their exact long-run share, worked out from their settings. Figures describe free coin play only and say nothing about any real-money game. Every spin is independent.

Next Stop Multiplier

Free spins whose multiplier climbs with every spin of the round. Next stop: the multiplier moves up one more station.

Medium volatility makes this a comfy ride; read the rules once to see how the multiplier climbs during free spins.

Paytable for Bubble Reef Express

Special symbols

Golden Starfish · wildStands in for every symbol except the scatter.
3
184
4
752
5
5014
Pearl Bubble · scatterThree or more anywhere start free spins with a climbing multiplier (x2, x2, x3, x3, x4). It also pays on its own, multiplied by the total stake.
3
3
4
20
5
100

Picture and card symbols (multiples of the line stake)

Bubble Carriage3, 4 or 5 in a row from reel 1
3
125
4
500
5
2499
Shell Ticket3, 4 or 5 in a row from reel 1
3
80
4
318
5
1326
Coral Starfish3, 4 or 5 in a row from reel 1
3
51
4
188
5
771
Spiral Shell3, 4 or 5 in a row from reel 1
3
38
4
144
5
577
Stripy Fish3, 4 or 5 in a row from reel 1
3
28
4
104
5
340
A
Ace3, 4 or 5 in a row from reel 1
3
17
4
65
5
190
K
King3, 4 or 5 in a row from reel 1
3
13
4
53
5
159
Q
Queen3, 4 or 5 in a row from reel 1
3
10
4
37
5
111
J
Jack3, 4 or 5 in a row from reel 1
3
7
4
30
5
95
10
Ten3, 4 or 5 in a row from reel 1
3
7
4
28
5
84

20 fixed lines, paid left to right from reel 1 on adjacent reels; the highest win per line is paid. Your stake is split across every line. Four progressive play-coin pots grow with every stake and can drop on any paid spin.