Dolphin’s Pearl Deluxe slot review

Dolphin’s Pearl Deluxe slot: the short version

Dolphin’s Pearl Deluxe is a ten-line game from Novomatic, distributed online by Greentube and released in 2009 as a refreshed version of the earlier Dolphin’s Pearl. It has two special symbols and one bonus round, and everything interesting comes from multiplication: the wild doubles, the free games triple, and retriggers extend the round.

Because the free games multiply normal line wins rather than turning one symbol into a screen-filler, a typical bonus produces a spread of moderate results. Big outcomes still happen, mainly when wilds and high symbols line up inside the free games, but the round is less dependent on a single random choice than in book slots.

The underwater look and sound

The reels sit over a deep blue seabed. Premium symbols are sea creatures, including a lobster and tropical fish, drawn in the bright, slightly glossy style Novomatic used across its deluxe range, and card ranks fill the lower tier. The audio is classic cabinet chimes rather than a soundtrack. It belongs with other ocean slots and appeals mainly to people who like the plain, arcade-cabinet feel.

Reels, lines and stakes

There are five reels, three rows and ten paylines. Wins run left to right from the first reel. Your stake is set as a bet per line multiplied by the active lines; most versions let you reduce the line count, though keeping all ten active keeps every free-game win available.

How to play Dolphin’s Pearl Deluxe

1. Sign in to a UKGC-licensed casino that has completed your age and identity checks.
2. Open the game and read the paytable to confirm the RTP and the dolphin’s doubling rule.
3. Set the number of lines and bet per line; the total appears beside the spin button.
4. Spin. The dolphin substitutes for every symbol except the pearl and doubles wins it completes.
5. Three or more pearls anywhere pay a scatter win and start the 15 free games automatically.
6. After a win, collect or, if a gamble option is shown, decide whether to risk it.

The dolphin wild and its doubling

The dolphin is the game’s wild symbol. It stands in for any symbol except the pearl scatter, and any line win it completes is doubled. It is also the highest-paying symbol in its own right, so a line of dolphins pays without any substitution.

Worked example at 20p a spin across ten lines (2p a line): suppose three lobsters on a line pay 20p. If a dolphin replaces one of those lobsters, the same line pays 40p because of the doubling. That is why the base game produces more mid-sized hits than its plain appearance suggests.

The pearl scatter: payouts and the trigger

The pearl in an open shell is a scatter symbol. Three, four or five anywhere on the reels pay a multiple of your total stake, whatever lines are active, and three or more also trigger the free games. Scatter wins are added to any line wins from the same spin.

Dolphin’s Pearl Deluxe free games: 15 spins with tripled wins

Three or more pearls award 15 free games played at the same lines and stake as the triggering spin. Every win in the round is tripled. Landing three or more pearls again during the round adds a further 15 games, so the feature can run well beyond its starting length.

How the multipliers work out

Take the same 20p stake. A line win that would pay 30p in the base game pays 90p in free games. A win completed by the dolphin is doubled as well as tripled where the paytable applies both, and the game’s help screen sets out how your version combines them. Over 15 spins, a round made up of a handful of ordinary line wins might return a few pounds, while one or two lines of high symbols with wilds can lift it much further. The bigger returns come from repeated retriggers, which are uncommon.

Gamble option after a win

Many versions include a red-or-black card gamble feature. A correct guess doubles the win; a wrong one loses it. It does not change the game’s long-term return in your favour, and you can always collect instead. Whether it appears depends on the casino’s build of the game.

Dolphin’s Pearl Deluxe RTP and volatility in pounds

At 95.13% RTP the theoretical cost is £4.87 per £100 staked. Over 300 spins at 20p, that is £60 staked and an expected cost of £2.92. Under UK rules each spin takes at least 2.5 seconds, so those 300 spins last 12 and a half minutes at the very least.

High volatility means the actual result of a 300-spin session will often be far from £2.92. Many sessions end with a bigger loss and no or small free games; fewer end ahead after a strong round. An RTP of 95.13% is lower than most modern slots, which tend to sit around 96%, so the game is relatively expensive to play over time. Our guide to RTP and what makes a good RTP put the figure in context.

Max win on Dolphin’s Pearl Deluxe

We have not found a single verified max win figure for Dolphin’s Pearl Deluxe that holds across versions, so we do not quote one. The largest outcomes come from free games in which dolphins and high symbols fill several lines with the tripling applied. The in-game paytable lists the top line payouts at your stake, which is the most reliable way to judge the ceiling for the version you are playing. Our explainer on what max win means covers how ceilings are calculated.

UK rules that apply to Dolphin’s Pearl Deluxe

• Stakes are capped at £5 per spin for players aged 25 and over and £2 for players aged 18–24.
• There is no autoplay, and spins take at least 2.5 seconds.
• Wins smaller than your stake are not celebrated with sounds or animations, so you can see a loss disguised as a win for what it is.
• Demo play is only available after age verification.

Dolphin’s Pearl Deluxe compared with similar sea and classic slots

Lord of the Ocean keeps the sea theme but uses Novomatic’s expanding-symbol bonus instead of multipliers. Lucky Lady’s Charm Deluxe shares Dolphin’s Pearl’s RTP. Great Blue and Fishin’ Frenzy both publish higher RTPs, and Fishin’ Frenzy is the gentler option for volatility.

Pros, cons and who Dolphin’s Pearl Deluxe suits

It suits players who prefer traditional cabinet-style games and steady rules over modern feature stacks. Value-focused players may prefer high RTP slots.

Where to play Dolphin’s Pearl Deluxe in the UK

Greentube games appear in many UK lobbies, but not every casino carries every title, so search for the game first. If a sea theme is what draws you, PlayOJO gives new UK customers (excluding Northern Ireland) 80 free spins on Big Bass Bonanza after a first deposit of at least £10, at 10p each with winnings paid in cash and no wagering, and Coral gives 100 free spins at 10p after you deposit and bet £10 on slots, with no wagering on free spin winnings (selected games, valid 7 days). 18+, T&Cs apply.

18+. Gambling should be entertainment that costs money, not a way to make it. Set a deposit limit before you play: how to set limits. Free, confidential help: National Gambling Helpline 0808 8020 133.