Great Blue Jackpot Slot

First-Hand Look

Great Blue Jackpot is a game by the slot provider Playtech (released date: 2018). It takes a familiar sea-life theme and applies it to a jackpot format.

The graphics are a semi-realistic cartoon style. Although they may appear somewhat dated by today’s standards, they are clean and hold up well for long sessions.

There are no constant soundtracks, just sound effects activated by the spins, which is far more reminiscent of cabinet slots and gives a retro feeling.

This version is a legitimate extension of the earlier Playtech slot, Great Blue. The 2018 release added four progressive jackpots and provided more visual clarity, making it a sharper entry compared to its predecessor.

Features and Structure

Great Blue Jackpot gameplay is easy to follow, and the symbol progression is nicely paced. I like how fast the bonus mechanics emerge in this game – free spins with towering wilds and a jackpot picker, with little grinding in between.

While other jackpot slots with bells and whistles like Age of the Gods or Fire Blaze may focus more on ambiguity and pacing to create drama, this one prioritises clarity and steady action.

Symbols

• The low-value symbols are the classic card royals (9, 10, J, Q, K, A), and the royal symbols are all themed with a water design.
• The high-value symbols show the seahorse, starfish, clownfish, turtle, and shark. The shark symbol is the dominant standard symbol.
• Special symbols are the Orca wild and the pearl scatter. The Orca is stacked and replaces any symbol except the scatter, doubling wins it participates in. The pearl scatter activates the free spins feature when 3 or more appear anywhere on the reels.

Bonus Features

• Wild symbol (Orca): Stacked on all reels, substitutes for other symbols, and gives a 2x payout multiplier on wins.
• Scatter symbol (Pearl): Triggers a pick-me game when 3+ appear, awarding up to 33 free spins and a multiplier of up to 15x. Free spins can be retriggered without limit.
• Progressive Jackpots: Triggered randomly on any base spin. Match 3 identical jackpot coins to win the Fish, Turtle, Shark, or Whale jackpot.
• Gamble Feature: Optional. After any base win, players can risk their payout by guessing a card’s colour. Double or lose.

The stacked wilds and variable multiplier method mean that volatility swings are sharp. Max win is 10,000x your stake.

The pay table is weighted at the top, and the volatility is evident. This is not a slot to chase small hits-it’s either streaks or dryness. That said, the stacked Orcas and retriggerable free spins allow for big swing potential.

Jamie Wall Casino Analyst

Here’s a quick look at each symbol’s payouts, especially useful when paired with multipliers and retriggers.

Payout Table

With symbols and features covered, let’s now break down how the slot plays out spin by spin.

Gameplay and Setup

The Great Blue Jackpot slot game sticks to the tried and true 5×3 configuration and 25 fixed paylines but adds a pretty comprehensive suite of features. What distinguishes this UK-focused progressive game from others is the stacked wilds, retriggerable free spins with up to 15x multipliers, and a four-tier jackpot.

Players looking for decent multipliers and a relatively simple bonus round will appreciate this slot. The RTP is just below average at 95.02%. The game volatility is high, but up to 33 free spins with increased multipliers and four random jackpots will mitigate that risk. RTP may vary between UK online casinos, usually ranging from 94% to 95.02%, so check the game info before you play.

You may adjust your total stake from £0.25 to £2.50 per spin with the coin value, but the lines and bets per line are fixed.

Autoplay is available and working as it should. You can set the number of spins and set stop conditions for loss or win limits.

The panel below the reels shows the balance and total bet, as well as being able to access the paytable, autoplay, and game info. Everything is as you would expect.

I found the interface convenient, and it all performed well in my test. I changed autoplay in a few seconds with no problems. With a low maximum bet, I’d recommend this online slot for casual players or anyone experimenting with jackpot strategy on a very small budget.

Jamie Wall Casino Analyst

Our Feedback

A few spins into our test, it became clear this slot doesn’t hold back its bonus mechanics. From stacked wilds to fast-moving free spins, everything plays out with little delay. Below is an expert note based on what we saw during our hands-on testing session.

During my time testing the demo slot, I triggered the free spins bonus twice. The first time I had 11 free spins with a 5x multiplier, which paid a little over 60x my stake. The second time, I had only 9 free spins but maxed out to a 15x multiplier, and that one paid over 150x. The bonus is fast-paced, and the retriggers do land. I didn’t hit the jackpot picker, but the slot supplier rules said it is a random trigger, and the odds are better the higher stake you play.

Jamie Wall Casino Analyst

Conclusion

Great Blue Jackpot has a firm framework of 5×3 that does not make things complicated with odd multipliers and a gradually stepping approach to a progressive jackpot.

It will not be for anyone looking for the fun of aggressive visuals or flashy bonus overlays. However, it will satisfy someone familiar with the framework of retriggerable free spins, stacked symbols, and a rhythm that doesn’t speed up when won.

• Pros:
• Local jackpots scale with your bet
• Retriggers hit more often than expected
• Reliable autoplay options and clear controls with no clutter;
• Fixed jackpots tied to symbol stacking

• Cons:
• No variety within the bonus round
• Audio lacks a background theme
• Low max bet may limit high-roller appeal
• No retrigger logic variety in free spins

If you want to play Great Blue Jackpot, it’s best suited to players who like lean, high-volatility slots with structured rewards.