Dolphin’s Pearl Deluxe app play means loading Novomatic’s 2009 underwater slot inside a licensed UK casino app, because there’s no separate real-money download. It’s an old-school game: ten lines, a doubling dolphin wild and a 15-spin bonus where wins are tripled. This guide covers how it plays on a phone, the gamble option and what a 95.13% RTP means.
You play it inside UK casino apps; there’s no standalone real-money app.
The dolphin wild doubles any line win it helps complete.
Three or more pearl scatters award 15 free spins with all wins tripled, and the round can be retriggered.
Published RTP is 95.13%, lower than many modern slots, and volatility is high.
Some versions include an optional red-or-black gamble after wins, which adds risk without improving your odds.
Developer
Novomatic (Greentube)
RTP
95.13%
Volatility
High
Layout
5 × 3
Ways to win
10 paylines
Released
2009
Dolphin’s Pearl Deluxe app: where the game comes from
Dolphin’s Pearl Deluxe is a Novomatic game, published online through Greentube, the Austrian group’s Vienna-based online studio with a UK office in Nottingham. Novomatic was founded in 1980 and built its reputation on land-based gaming machines across Europe, and this slot carries that look: bold symbols, a simple grid and an emphasis on the bonus. The Deluxe edition arrived in 2009 as an updated version of an older cabinet game.
To play for real money in Britain, you need a UK-licensed casino app that carries Greentube titles. There’s no official app for this one game. Social-casino apps from Greentube with coin-based versions of Novomatic games do exist in app stores, but they don’t pay cash and aren’t the same as playing in a real-money casino app. Our Novomatic mobile slots page explains the difference and lists more of the studio’s titles.
How Dolphin’s Pearl Deluxe looks on iPhone and Android
The game was designed for a landscape cabinet screen, and in a casino app it still looks most natural sideways. Hold the phone upright and the 5 × 3 grid shrinks to fill the width, leaving space above and below. The symbols are large and simple (card royals, sea creatures, the dolphin and the pearl in its oyster), so they stay readable even when scaled down.
The control bar is where portrait gets fiddly. Older Novomatic conversions show separate buttons for lines and bet per line, as well as the total. On a narrow phone these can sit close together, so check your total stake before every first spin of a session. If you have a larger phone or tablet, our large screen phones guide explains how these games scale.
Control
What it does
What to watch for
Lines
Sets how many of the 10 paylines are active
Fewer lines means fewer ways to land a win
Bet per line
Sets the stake on each active line
Total stake = lines × bet per line
Total bet
Shows the cost of one spin
Check it before spinning
Gamble (some versions)
Offers a red-or-black guess after a win
Optional; you can always collect instead
How to play Dolphin’s Pearl Deluxe in a casino app
Sign in to your casino app and search for “Dolphin’s Pearl Deluxe”.
Open the game and wait for it to load fully; rotate to landscape if the controls look cramped.
Open the paytable to see the line shapes, symbol values and the RTP shown for this version.
Set the number of active lines (up to 10) and the bet per line. Most players keep all 10 lines active.
Confirm the total bet, then tap start. Each spin takes at least 2.5 seconds under UK rules.
After a win, choose Collect, or Gamble if the option appears and you want to risk the win.
Running fewer lines lowers your cost per spin, but it also removes winning combinations from play. A five-dolphin line on an inactive line simply doesn’t pay. If you want a cheaper spin, reducing the bet per line while keeping all ten lines active is usually the clearer approach. The paytable shows which lines are active at any time.
Dolphin’s Pearl Deluxe features: wild, scatter and free spins
Dolphin wild with double wins
The dolphin is both the top-paying symbol and the wild. It stands in for every symbol except the pearl scatter, and any line win it helps to complete is doubled. A line of three lobsters that would pay £1 pays £2 when a dolphin is part of it.
Pearl scatter
The pearl in its oyster shell pays anywhere on the reels, without needing to sit on a line. Scatter wins are based on your total bet.
Free spins with tripled wins
Three or more pearls in one paid spin award 15 free spins, played at the same stake that triggered them. During the round every win is tripled. Combined with the dolphin’s doubling, a line completed by a dolphin pays six times its base value. Landing three more pearls during the round adds another 15 spins. This is where the game’s high volatility comes from: most of the big outcomes depend on getting into this round and catching dolphins while you’re there.
The gamble feature: what it does and why to be careful
Some versions of Dolphin’s Pearl Deluxe offer a gamble feature after a win. A face-down card appears, and you guess whether it will be red or black. A correct guess doubles the win and lets you go again; a wrong one loses the whole amount. You can collect at any point.
The gamble doesn’t improve your odds. At best it’s a coin flip that doubles both the potential win and the risk. On a phone the gamble button can sit close to the collect button, so make sure you tap the one you mean. Whether the option appears depends on the version your casino runs.
Dolphin’s Pearl Deluxe RTP and volatility explained
The published RTP is 95.13%. That’s below the 96% many modern slots publish, meaning a slightly higher average cost over time. Volatility is high, so expect long stretches of small or no wins between bonus rounds.
Total bet
Spins
Total staked
Average cost
10p
300
£30
£1.46
50p
200
£100
£4.87
£1
200
£200
£9.74
£2
100
£200
£9.74
For comparison, the same £200 staked on a slot with 96.5% RTP would have a long-run average cost of £7. These averages only appear over huge numbers of spins; in any single session results can be much better or worse. Losses are likely over time whatever the RTP. Our best payout casino apps guide explains how to use RTP when choosing games.
UK rules for Dolphin’s Pearl Deluxe on mobile
Stakes capped at £5 per spin for over-25s and £2 per spin for 18–24-year-olds.
No autoplay: the old cabinet’s auto-start button is removed in UK versions.
Spins last at least 2.5 seconds, with no turbo or quick stop.
No feature buy for the free spins round.
Free-play demos only after age verification.
Novomatic’s older games were updated to meet the Gambling Commission’s 2021 design rules. Read more on our UK slot design rules on mobile page.
Dolphin’s Pearl Deluxe vs other Novomatic classics
Pros and cons of Dolphin’s Pearl Deluxe on a phone
Advantages
Simple 10-line game that’s easy to learn
Large, clear symbols stay readable when scaled down
Doubling wild and tripled free spins give the bonus real weight
Retriggers can extend the bonus
Drawbacks
RTP of 95.13% is below many modern slots
Designed for landscape; portrait controls can be cramped
Expect long gaps between bonuses at high volatility
Gamble option, where present, can tempt you to risk wins
Where to play Dolphin’s Pearl Deluxe on mobile
Not every app carries Greentube games, so search the title before depositing. The partner offers below are for new players aged 18+ and terms apply: PlayOJO’s 80 spins are on Big Bass Bonanza after a £10 first deposit, while Ladbrokes and Coral award 10p spins on selected games after £10 staked on slots. Our classic slots apps page covers similar games.
These three apps publish no-wagering spin offers for new players aged 18+ after a £10 deposit or slots stake; terms apply and the spins are tied to games each casino selects, which may not include Dolphin’s Pearl Deluxe.
Coral and Ladbrokes are both run by LC International Limited (Entain). If you already hold an account with one Entain brand, you may not be able to open a new account with another; check the terms before signing up.
Significant terms: 18+. New UK customers (excluding Northern Ireland). First deposit only. Minimum deposit £10. 80 free spins on Big Bass Bonanza, £0.10 each. No wagering requirements; winnings paid in cash. Cannot be used with any other offer. Only available to players who arrive through the designated offer link. Full T&Cs apply. GamCare.org.uk
Read the PlayOJO reviewLicence: Skill On Net Limited, UKGC account 39326. Offer checked 5 October 2026.
Significant terms: 18+. New customers only, from 14/11/25 until further notice. Certain deposit methods excluded. Deposit and spend £10+ on slots for 50 free spins a day during the first 10 days after first deposit and registration (max 500, £0.10 each, selected games, claim before 23:59 each day, valid 7 days). No wagering. Prepaid cards, PayPal, Paysafe, Neteller, Skrill and Moneybookers deposits do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Ladbrokes reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
Significant terms: 18+. New players only. Offer runs 01/10/2026 to 01/02/2027. Deposit (certain types excluded) and bet £10+ on slot games to get 100 free spins (selected games, £0.10 each, 48 hrs to accept, valid 7 days). No wagering on free spin winnings. Deposits by Neteller, PayPal, Paysafe, Skrill, prepaid cards and certain debit cards do not qualify. Restrictions and T&Cs apply. GamCare.org.uk
Read the Coral reviewLicence: LC International Limited, UKGC account 54743. Offer checked 5 October 2026.
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.
Frequently asked questions
Is there a Dolphin’s Pearl Deluxe app for real money?
There’s no official standalone real-money app for Dolphin’s Pearl Deluxe in the UK. You play it inside licensed casino apps that carry Greentube games. Some coin-based social casino apps include Novomatic titles, but they don’t pay real money and are a separate product. Before depositing anywhere, check the operator on the Gambling Commission register; our safe casino apps guide explains how to confirm a licence and the app developer.
What is the RTP of Dolphin’s Pearl Deluxe?
The published RTP is 95.13%. That’s a long-run average, so the game is designed to return about £95.13 for every £100 staked over a very large number of spins, with the remainder kept by the casino. A single session can end anywhere. Because it is below the 96% many newer slots publish, it costs slightly more on average. Our house edge glossary entry explains the link between RTP and the casino’s margin.
How many free spins do you get on Dolphin’s Pearl Deluxe?
Three or more pearl scatters award 15 free spins at the stake that triggered them. All wins during the round are tripled, and a line completed by the dolphin wild pays six times its base value because the wild’s doubling also applies. Landing three more pearls during the round adds another 15 spins. There’s no bonus buy in Great Britain. Our free spins glossary entry covers how scatter-triggered rounds work in general.
Does the dolphin wild double wins?
Yes. The dolphin substitutes for every symbol except the pearl scatter, and any line win it helps complete is doubled. During free spins, where all wins are tripled, a line with a dolphin in it pays six times its base value. Five dolphins on a line is also the top regular payout, because the dolphin is the highest-paying symbol in its own right. Our wild symbol glossary entry explains how wilds work across different slots.
Should I use the gamble feature?
That’s your decision, but understand what it does first. The red-or-black gamble gives you roughly even chances of doubling a win or losing all of it, so it adds risk without improving your long-run odds. It only appears in some versions, and you can always tap Collect instead. If you’re playing to a budget, skipping the gamble keeps outcomes more predictable. Our bankroll management on mobile guide covers practical ways to stick to limits.
Should I play all 10 lines on Dolphin’s Pearl Deluxe?
Most players keep all 10 lines active, because inactive lines can’t pay even if a winning combination lands on them. If you want a lower cost per spin, reducing the bet per line usually makes more sense than switching lines off. The total stake shown in the app is always the number of active lines multiplied by your bet per line. Our coin value glossary entry explains how line bets and totals relate in older slots.
Can I play Dolphin’s Pearl Deluxe on my iPhone?
Yes, through a UK-licensed casino app that carries Greentube games, or in a mobile browser. The game runs on HTML5, so there’s nothing extra to install. It looks best in landscape because it was designed for a widescreen cabinet. If the controls feel cramped in portrait, rotate the phone. Our iPhone casino apps guide compares the casino apps available on the UK App Store and what each needs to run.
Why can’t I find Dolphin’s Pearl Deluxe in my casino app?
Not every UK casino has a deal with Greentube, Novomatic’s online studio, so some libraries simply don’t include its games. Search the full name, then try a provider filter for Novomatic or Greentube if your app has one. If neither shows the game, it isn’t offered by that casino. Updating the app can refresh the game list. Our finding games in a casino app guide covers search tips.
Is Dolphin’s Pearl Deluxe high volatility?
Yes, it’s rated high volatility. Most of its larger outcomes come from the free spins round, where wins are tripled, so the base game can go long periods paying little. That suits players comfortable with swings but can use up a small budget quickly. Choose your stake with that in mind and consider a session time limit. Our session limits on casino apps guide explains how to set one.
Can I play Dolphin’s Pearl Deluxe for free?
Some UK casino apps offer a demo version, but only once you’ve registered and verified your age, which has been required since 2019. Credits in a demo are worthless outside it. Coin-based social casino apps also carry Novomatic games, but those are separate entertainment products with no real-money prizes. Our free casino apps guide explains the difference between demo play in a real-money app and social casino apps.
Gambling can be addictive. Free, confidential help is available 24 hours a day from the National Gambling Helpline on 0808 8020 133. Get support from GamCare or NHS gambling support, or block yourself from all UK-licensed gambling sites with GAMSTOP.
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