Bubble Reef Express
A glass bubble train looping through coral arches.

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

- 3
- 184
- 4
- 752
- 5
- 5014

- 3
- 3
- 4
- 20
- 5
- 100
Picture and card symbols (multiples of the line stake)

- 3
- 125
- 4
- 500
- 5
- 2499

- 3
- 80
- 4
- 318
- 5
- 1326

- 3
- 51
- 4
- 188
- 5
- 771

- 3
- 38
- 4
- 144
- 5
- 577

- 3
- 28
- 4
- 104
- 5
- 340
- 3
- 17
- 4
- 65
- 5
- 190
- 3
- 13
- 4
- 53
- 5
- 159
- 3
- 10
- 4
- 37
- 5
- 111
- 3
- 7
- 4
- 30
- 5
- 95
- 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.