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Great Blue Slot Review

S. Stoynova
Svetlana is a seasoned iGaming writer who has been contributing to CasinoGamesPro.com since 2015. She specialises in in-depth reviews of casino games, including slots, roulette, blackjack, and video poker. Her expertise also extends to evaluating payment methods, mobile casino apps, and leading online gambling platforms.
(editor) | Updated:
18+ Only. Play Responsibly.
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Great Blue is a classic 5-reel, 25-payline video slot from Playtech that takes players into the deep ocean with high-volatility gameplay, an above-average 96.03% RTP, and a free spins pick feature offering up to 33 spins and 15x multipliers. This Great Blue slot review covers its underwater theme, fixed jackpot of 10,000x the line bet, flexible stakes from $0.25 to $125, and straightforward mechanics for new and experienced players.

Great Blue Pros and Cons

  • Pros
    • High maximum payout of 10,000x the line bet.
    • Free spins bonus with up to 33 spins and 15x multipliers.
    • Adjustable 1 to 25 paylines for flexible budgeting.
    • Simple interface suitable for mobile and desktop play.
    • Includes a gamble feature for double-or-nothing fans.
  • Cons
    • High volatility can cause lengthy dry spells.
    • Graphics feel dated compared with newer releases.
    • No progressive jackpot option.

Great Blue Data Table

Slot Summary
Game TypeVideo Slot
DeveloperPlaytech
ThemeUnderwater / Ocean
Release Date2013
Layout5 Reels × 3 Rows
RTP96.03%
VolatilityHigh
Minimum Bet$0.25
Maximum Bet$125
Max Payout10,000× Line Bet
Hit Frequency≈ 28.9%
Paylines25 (Adjustable)
Free SpinsYes
FeaturesWilds, Scatters, Free Spins, Pick-and-Win, Multipliers, Gamble
Jackpot TypeFixed

Great Blue Theme & Symbols

The Great Blue slot transports players to a serene yet suspenseful underwater world filled with whales, sharks, turtles, and shimmering pearls. The marine setting features vivid shades of blue and aquatic animations, while the symbols depict colourful sea life and classic card ranks.

Visuals & Audio

The slot’s clean 2D graphics retain their charm through animated bubbles and smooth reel spins, while gentle sonar pings and splashing effects highlight wins. Although the visuals are not three-dimensional, the crisp icons and calming soundtrack create an atmosphere that balances relaxation with excitement.

Symbols

Low-Paying Symbols: The 9, 10, J, Q, K, and A are styled as shimmering coral characters and provide smaller payouts.
High-Paying Symbols:

  • Shark: the top regular symbol with substantial payouts.
  • Sea Turtle: another high-paying marine symbol.
  • Starfish & Seahorse: mid-tier marine symbols.
  • Wild Orca: substitutes for other symbols except the Pearl Shell and awards the 10,000× jackpot.
  • Scatter Pearl Shell: triggers free spins and pays based on the total bet.

Great Blue Payout Table

Symbol2×3×4×5×
Wild Orca10×250×2,500×10,000×
Scatter Pearl Shell*2×5×20×500×
Shark2×25×125×750×
Sea Turtle2×25×125×750×
Starfish–15×75×250×
Seahorse–15×75×250×
Yellow Fish–20×100×400×
A–10×50×150×
K–10×50×150×
Q–5×25×100×
J–5×25×100×
10–5×25×100×
92×5×25×100×

*Scatter payouts multiply the total stake rather than the line bet.

How to Play Great Blue Slot

To play the Great Blue slot, first select the number of active paylines from 1 to 25 and adjust the line bet from $0.01 to $5, resulting in a total stake of $0.25 to $125. Select Spin or use the Auto-Play panel for consecutive spins. Winning combinations pay from left to right, except for scatter wins, and the Orca Wild substitutes for all symbols except the Pearl Shell. Landing three or more scatters triggers the pick-and-win feature. Choose two shells to reveal up to 33 free spins and multipliers of up to 15×. After any base-game win, you may use the gamble feature to double your prize by predicting the colour of the next card.

Tips & Strategies for Great Blue

  • Bankroll Management: Because of the high volatility, set a session budget and begin with smaller stakes.
  • Maximise Paylines: Playing all 25 lines helps prevent you from missing a jackpot combination on an inactive payline.
  • Target Free Spins: The bonus round provides extra spins and multipliers, making scatter symbols particularly important.
  • Avoid Long Gamble Streaks: Use the gamble feature sparingly to avoid losing accumulated wins.
  • Practice Mode: Test the demo to understand the paytable and game behaviour before playing with real money.

Great Blue Review Verdict

The Great Blue slot combines substantial multipliers, high volatility, and straightforward gameplay in a classic underwater setting. Its presentation may feel dated compared with newer slots, but the flexible paylines, free spins feature, and fixed jackpot still provide an engaging experience for players who prefer traditional mechanics.

FAQ

What is the RTP of Great Blue?
The game features a competitive return-to-player percentage of 96.03%.
Can I trigger more free spins during the bonus?
No, additional free spins cannot be retriggered once the initial batch is in play.
Is Great Blue available on mobile devices?
Yes, Playtech optimised the slot for HTML5, allowing it to run smoothly on smartphones and tablets.
What is the maximum possible win?
You can win up to 10,000× the line bet by landing five Wild Orcas on an active payline.
Does the slot offer a progressive jackpot?
No, Great Blue offers a fixed jackpot only.
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