Editorial note: this is a general guide to how Great Blue works. Slot rules, feature availability and RTP can vary between operators and game versions, so always check the in-game information panel before you spin. Slots are games of chance — nothing here is a prediction of results, and no strategy changes the odds.
Great Blue slot review
Great Blue is a Playtech slot released in June 2013, set in the open ocean across five reels, three rows and 25 paylines. A whale wild doubles any line win it completes, and three sea shell scatters open free spins that start with a pick: two of five shells can add more spins and raise the multiplier as high as 15x.
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How Great Blue plays
This is a classic line slot: matching sea creatures pay from left to right on 25 lines, with no cascades or collect meters to track. Two symbols carry the extras:
- The whale wild: substitutes for every symbol apart from the scatter and doubles any win it helps form.
- The sea shell scatter: a pearl in an open shell.
The sea shell free spins
Three or more shells open the feature with eight free spins at 2x. First you see five closed shells and pick two, each revealing extra spins or a higher multiplier. A lucky pair can add as many as 33 extra spins or lift the multiplier to 15x, though most rounds settle in between.
Three or more shells during the round add 15 more spins at your current multiplier, and retriggers can stack. Reviewers rate the game highly volatile, so results can swing widely between rounds.
Game information
| Provider | Playtech |
|---|---|
| Released | June 2013 |
| Reels and lines | 5 reels, 3 rows, 25 paylines |
| Volatility | High |
| RTP | Shown in the game’s information panel |
| Stake per spin (UK) | UK stakes are capped at £5 a spin (£2 for players aged 18 to 24) |
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Find Great Blue in the Fortune Games lobby (18+). You can also browse our slot game guides.
All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time.
Frequently asked questions
What does the whale wild do?
It substitutes for all symbols except the shell scatter and doubles any win it is part of.
How does the shell pick work?
At the start of free spins you choose two of five shells, each adding extra spins or a bigger multiplier to the starting eight spins at 2x.
Can Great Blue free spins be retriggered?
Yes. Three or more shells during the round add 15 more spins at the current multiplier.
What is the RTP?
The game’s information panel shows it. RTP can differ between operators and game versions, so check the panel in the version you play.
Related guides
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