A Lord of the Ocean app isn't something you download separately: Novomatic's 2008 underwater slot, supplied online by Greentube, opens inside UK-licensed casino apps. This guide shows how a game first designed for arcade-style cabinets plays on a phone, how the golden gate unlocks 10 free spins with an expanding symbol, and what its 95.1% RTP and high volatility mean.
Lord of the Ocean is a Novomatic slot from 2008, delivered online by its studio Greentube.
The golden gate is both wild and scatter; three or more give 10 free spins.
One randomly chosen symbol expands to fill whole reels during the free spins.
Published RTP is 95.1%, below many modern slots, and volatility is high.
Developer
Novomatic (Greentube)
RTP
95.1%
Volatility
High
Layout
5 reels × 3 rows
Ways to win
10 paylines
Released
2008
Why there's no separate Lord of the Ocean app
Novomatic is the Austrian gaming group founded in 1980, and Greentube is its online arm, based in Vienna with a UK office in Nottingham. Greentube converts Novomatic's cabinet games, including Lord of the Ocean, into HTML5 versions that licensed casinos add to their lobbies. That's why searching the App Store or Google Play for a real-money version turns up nothing official. You play it inside your casino app, using your normal balance.
If you do find a store app with Lord of the Ocean in its name, check who publishes it. Greentube runs social casino products where coins have no cash value, and those are a different thing from real-money play. Our how to read casino app store listings guide shows what to look for in the developer line.
Lord of the Ocean on a phone: from cabinet to touchscreen
The game was drawn for a wide screen, so the reels are framed in landscape proportions. On a phone held upright, they usually appear as a strip across the middle with the controls stacked underneath. That's fine for checking a result, but the symbols are small. Turning the phone sideways lets the reels fill the display and is how many people prefer to play classic Novomatic titles.
Landscape: larger symbols and a clearer view of expanding reels in free spins.
Portrait: one-handed play, though line indicators can be fiddly to read.
Sound: the retro effects are distinctive; mute them from the game menu or your phone's silent switch.
Older conversions are light by modern standards, so they usually load quickly even on weaker signal, though the exact size depends on the casino's app. Our Wi-Fi vs mobile data guide has general advice.
How Lord of the Ocean plays
Wins form along 10 paylines, reading from the leftmost reel. Some versions let you choose how many lines are active, but playing fewer lines doesn't change the odds on each line; it just means fewer ways to land a win for the same per-line stake. The symbol set mixes card ranks with higher-paying sea-themed symbols, and the paytable lists what each pays at your stake.
Open the casino app, tap Search and type "Lord of the Ocean".
Load the game and tap the paytable or info button to see payouts for your stake.
Check whether your version lets you change lines. If it does, most players keep all 10 active.
Set the stake. The control stops at £5 for players 25 and over, or £2 for 18–24s.
Tap Start or Spin. Each round takes at least 2.5 seconds in the UK.
After a win, you may see a Gamble option in some versions. Tap Collect to keep the win.
The golden gate and Lord of the Ocean free spins
Poseidon's golden gate is the most important symbol. It acts as a wild, standing in for other symbols, and as a scatter that pays anywhere. Three or more gates trigger 10 free spins.
Before the spins start, one standard symbol is picked at random as the special expanding symbol. Whenever enough copies of it land to form a win, each one expands to fill its reel, and the win is paid across the lines. Three more gates during the feature add another 10 spins, and the same special symbol stays in place.
Special symbol lands on
After expansion
Effect
Reels 1, 3 and 5
Three full reels of the symbol
Pays as a three-of-a-kind on every line
Reels 1, 2, 3 and 4
Four full reels
Four-of-a-kind on all 10 lines
Reels 2 and 4 only
No expansion if two isn't enough to pay
No win from the special symbol
The table shows the logic rather than real pay values. The paytable in your app lists exact amounts for each symbol at your stake.
The gamble feature in Lord of the Ocean
Some versions include a red-or-black card gamble after a win. Guess right and the win doubles; guess wrong and it's gone. It's optional, and tapping Collect ends it. Mathematically the gamble doesn't improve your position, it only makes results swing harder. Our gamble feature glossary entry explains why many players simply leave it alone.
What a 95.1% RTP means for Lord of the Ocean
The published return is 95.1%, so the long-run cost is around £4.90 for every £100 staked. Compared with a slot at 96.5%, that's £1.40 more per £100, which adds up across many sessions. Casino versions can differ, so the figure in the game's information panel is the one that counts. High RTP slots apps explains how to compare games on this basis.
High volatility means the base game is often quiet, and the free spins carry most of the potential. Consider a £25 budget at 25p per spin: that's 100 spins before any wins, or around four minutes at the minimum UK spin time. If the feature doesn't land in that window, the budget may be gone. Setting a time-out or session reminder is a sensible habit with games like this.
Where a UK app offers a demo of this game, it'll only appear once your age is confirmed. Demo credits let you see the expanding symbol in action. Results in demo mode don't predict real play, and the demo may run a different RTP version from the paid game. The casino app demo mode verification page explains why a demo button might be missing.
Free spins can retrigger with the same expanding symbol
Light game that usually loads fast
Drawbacks
95.1% RTP is below many newer slots
Designed for landscape, so small in portrait
Long quiet spells between features
Optional gamble feature adds risk without improving value
Where to play Lord of the Ocean on mobile
Not every UK casino carries Greentube's catalogue, so search the app before you register. The licensed partner apps below have welcome offers for new players; none uses this slot, and each has its own deposit, game and expiry terms. 18+, T&Cs apply. Our classic slots apps page lists similar games.
None of these offers is on Lord of the Ocean. Ladbrokes gives up to 500 no-wagering spins on selected games after £10 of slot play, PlayOJO gives 80 no-wagering spins on Big Bass Bonanza, and Casumo's 50% match carries 10x wagering. 18+, T&Cs apply.
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 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. Opt-in required. 50% deposit bonus up to £100 on first deposit. Minimum deposit £20. 10x wagering on the bonus amount. Maximum bet or spin £5. Bonus valid for 7 days. Game, play and payment method restrictions apply. Full T&Cs apply. GamCare.org.uk
Read the Casumo reviewLicence: Recro Limited, UKGC account 61549. 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 real-money Lord of the Ocean app?
There's no official standalone real-money Lord of the Ocean app in the UK. Novomatic's online studio, Greentube, supplies the game to licensed casinos, which run it inside their own apps and mobile sites. Any store app with the name may be a social casino game where coins have no cash value. To play for money, install a UK-licensed casino app and search its lobby. Our how to check a casino licence guide shows how to confirm a casino is licensed.
How many free spins does Lord of the Ocean give?
Three or more golden gate scatters award 10 free spins. Before they start, one regular symbol is chosen at random to act as the special expanding symbol for the whole feature. Landing three more gates during the free spins adds another 10, and the same special symbol stays active. Wins from expanded symbols pay across the paylines. The exact payouts for each symbol are in the paytable. Our free spins glossary entry explains how in-game free spins work.
What is the RTP of Lord of the Ocean?
The published RTP is 95.1%. That means a theoretical return of £95.10 for every £100 staked over a very large number of spins, with £4.90 kept as the house edge. It's lower than many modern slots, which often publish around 96% or more. Casinos can run different versions, so check the information panel inside the game. Our house edge glossary entry explains how RTP and house edge relate.
Is Lord of the Ocean the same as Book of Ra?
No, but they're very similar. Both are Novomatic slots with five reels, three rows, ten lines and a free spins round where a randomly picked symbol expands to fill reels. The ocean game has an underwater theme and uses a golden gate as its wild and scatter, while Book of Ra Deluxe has an explorer theme and uses a book. Their published RTP figures are close. Our Book of Ra Deluxe page covers that game in detail.
Can I play Lord of the Ocean in portrait mode?
Yes, you can play in portrait, but the game was designed for a wide screen, so the reels appear smaller when the phone is upright. Many players turn the phone sideways for free spins, when the expanding symbols are easier to see. If the game doesn't rotate, check that your phone's rotation lock is off. On a tablet, either orientation is comfortable. Our portrait vs landscape mobile slots guide explains the differences in more detail.
Should I use the gamble feature on Lord of the Ocean?
The gamble feature is entirely optional, and it doesn't improve your expected return. In versions that include it, you can guess the colour of a hidden card after a win: get it right and the win doubles, get it wrong and you lose it. All it does is make outcomes more extreme. If you'd rather keep wins as they are, tap Collect each time. Our bankroll management on mobile guide explains how to manage swings.
What is the maximum stake on Lord of the Ocean in the UK?
The maximum stake is £5 per spin for players aged 25 and over and £2 per spin for players aged 18 to 24. These limits apply to all online slots in Great Britain, and casinos enforce them using your verified date of birth. Some casinos set a lower ceiling for older games. You can also set your own deposit and loss limits from the app's safer gambling menu. Our casino app maximum stake page explains what you'll see in the app.
Why is Lord of the Ocean not in my casino app?
Each casino chooses which studios and games to carry, and not every UK operator offers Greentube's catalogue. If a search for Lord of the Ocean returns nothing, that casino doesn't have the game. Occasionally games are temporarily removed for maintenance or certification updates. Searching for similar titles, such as other Novomatic classics, may help. Our finding games in a casino app guide explains how lobby search and filters work on mobile.
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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