Gaminator Slots Online: Novomatic Classics, RTP and Tips

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Quick answer: Gaminator is Novomatic’s brand of multi-game slot cabinets. Online, the name covers its classic slots such as Book of Ra Deluxe (95.10% RTP), Lucky Lady’s Charm Deluxe (95.13%) and Sizzling Hot Deluxe (95.66%), which are made by Novomatic’s online studio Greentube and played at real-money casinos.

“Gaminator” is the name of Novomatic’s multi-game slot cabinets, a fixture of land-based casinos and gaming halls across Europe. Online, players use the name for the classic Novomatic games that ran on those machines, such as Book of Ra, Lucky Lady’s Charm and Sizzling Hot. This guide covers the best-known titles with fact-checked RTPs, how the gamble feature works, and the difference between real-money casinos and the free Gaminator apps.

Our casino pick for Novomatic slots

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18+. T&Cs apply. Novomatic games are not available in every country, so search the lobby for Novomatic or Greentube.

Gaminator slots at a glance

SlotTop RTPVolatilityMain feature
Book of Ra Deluxe95.10%High10 free spins with an expanding symbol
Lucky Lady’s Charm Deluxe95.13%High15 free spins, wins x3; 2x wild
Dolphin’s Pearl Deluxe95.13%High to very high15 free spins, wins x3
Sizzling Hot Deluxe95.66%MediumNo bonus round; star scatter
Lord of the Ocean95.1%High to very high10 free spins with an expanding symbol

We checked each figure against at least two independent sources, listed under How we checked this below. Where they disagree, we say so. Casinos can choose lower RTP versions of some Novomatic games, so check the info screen before you play.

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What are Gaminator slots?

Novomatic is an Austrian gaming company that makes land-based machines; Gaminator is the brand of its multi-game cabinets, which let players switch between many games on one machine. The online versions are made by Greentube, Novomatic’s online games studio. The classic titles share a recognisable style: 5×3 reels, 9 or 10 paylines, free games with multipliers or expanding symbols, and a gamble button after each win.

The best Gaminator slots online

Book of Ra Deluxe

RTP95.10% (a lower version exists)
VolatilityHigh
Layout5×3, 10 paylines
Free spins10, with one expanding symbol
Max winSources differ: 5,000x to about 10,000x

The game that made the “book” mechanic famous. Three or more Book scatters give 10 free spins, and one randomly chosen symbol expands to fill whole reels when it lands, paying across all lines. Read our Book of Ra guide.

Lucky Lady’s Charm Deluxe

RTP95.13%
VolatilityHigh
Layout5×3, 10 paylines
Free spins15, with all wins tripled; can retrigger
WildLucky Lady wild doubles wins it completes

Three or more crystal ball scatters give 15 free games where all wins are tripled, and the wild doubles any win it is part of. Sources disagree on the maximum win, so check the paytable in the game. Try the Lucky Lady’s Charm Deluxe demo.

Dolphin’s Pearl Deluxe

RTP95.13%
VolatilityHigh to very high
Layout5×3, 10 paylines
Free spins15, with all wins tripled
WildDolphin wild substitutes for other symbols

An underwater version of the same formula as Lucky Lady’s Charm: three or more pearl scatters give 15 free games with a 3x multiplier. Try the Dolphin’s Pearl Deluxe demo.

Sizzling Hot Deluxe

RTP95.66%
VolatilityMedium (sources range from low to medium-high)
Layout5×3, 5 fixed paylines
Top line winFive red 7s pay 1,000x your total bet

A pure fruit machine with no free spins or bonus round. The star scatter pays anywhere on the reels, and the gamble feature is the only extra. Good if you want fast, simple spins. Try the Sizzling Hot Deluxe demo.

Lord of the Ocean

RTP95.1%
VolatilityHigh to very high
Layout5×3, 10 paylines
Free spins10, with one expanding symbol

Book of Ra’s expanding-symbol free games with an undersea theme. See our Lord of the Ocean guide.

How the gamble feature works

After a win in most classic Novomatic slots you can press Gamble and guess whether the next card will be red or black. A correct guess doubles the win; a wrong one loses it. There is a limit on how much you can gamble or how many times. The gamble feature makes your results swing more, so only use it with wins you are happy to lose.

Gaminator apps vs real-money casinos

The Gaminator apps you find in app stores are social casino apps: you play with virtual credits and cannot withdraw real money. To play Novomatic games for real money, you need a licensed online casino that carries Greentube games in your country. Never download “Gaminator hack” or “money generator” apps: they don’t work and can contain malware.

Where to play Novomatic slots

Novomatic games are restricted in some countries, so availability depends on where you live. Search the casino lobby for “Novomatic” or “Greentube” after you sign up. Our top-rated casino is 1win (9.9/10), which paid our crypto withdrawal in 15 minutes; new players can use promo code Ultragambler. You can also try iWild (9.8/10) and Snatch (9.8/10). For higher-RTP alternatives, see our highest RTP slots.

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How we checked this

  • Book of Ra Deluxe: 95.10% RTP, 5×3 reels with 10 paylines and 10 free spins with an expanding symbol. Max win differs by source (5,000x at OLBG, about 10,000x at Casinos.com): OLBG and Casinos.com.
  • Book of Ra Deluxe high volatility: Gambling.com and Casinos.com.
  • Lucky Lady’s Charm Deluxe: 95.13% RTP, high volatility, 10 paylines, 15 free games with wins tripled and a wild that doubles wins: OLBG and SiGMA Play.
  • Dolphin’s Pearl Deluxe: 95.13% RTP, 10 paylines, 15 free spins with wins tripled, and volatility rated high to very high: OLBG and Casinos.com.
  • Sizzling Hot Deluxe: 95.66% RTP, 5 paylines, five 7s paying 1,000x, no bonus round, and volatility rated from low to medium-high: WSN and Casinos.com.
  • Lord of the Ocean: 95.1% RTP, 10 paylines, 10 free spins with an expanding symbol, and volatility rated high to very high: OLBG and SlotCatalog.
  • Novomatic is an Austrian company and Greentube is its online games division: Wikipedia and Greentube.
  • Gaminator is a Novomatic cabinet range that runs multi-game packs: Intergame and GGRAsia.
  • Gaminator apps use virtual credits and pay no real money: Gaminator and the App Store listing.

Last checked: 13 October 2026, when we checked each figure on this page against at least two independent sources. Bonus terms and RTP versions change, so check the casino’s or game’s own page before you play.

Gaminator slots FAQs

What does Gaminator mean?

Gaminator is the brand name of Novomatic’s multi-game slot cabinets. Online, it is used for classic Novomatic games such as Book of Ra and Lucky Lady’s Charm.

Who makes Gaminator slots online?

Greentube, Novomatic’s online games studio, makes the online versions.

Can I win real money on the Gaminator app?

No. The Gaminator apps are social casino apps that use virtual credits. Real-money play needs a licensed online casino.

Which Gaminator slot has the highest RTP?

Of the classics on this page, Sizzling Hot Deluxe at 95.66%, followed by Lucky Lady’s Charm Deluxe and Dolphin’s Pearl Deluxe at 95.13%.

Can I play Gaminator slots for free?

Yes. Most Novomatic slots have demo versions, including the demos on our site linked above.


Important: check your local laws before you play

Online gambling laws differ from country to country, and in some places it is restricted or not permitted at all. Check that online gambling is legal where you live and that the casino accepts players from your country. You must be 18 or older (or the legal gambling age in your country, if higher). Only gamble with money you can afford to lose.

About the author: Jason Thompson

Jason Thompson is the founder and Editor-in-Chief of UltraGambler. He has more than 20 years' experience in bookmaking and the casino industry, and has spent the last 7 years reviewing online casinos. Jason oversees every review and rating on the site, and has run real-money payout tests at 1win, iWild, FortuneJack, Tsars and Casoo.

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18+. T&Cs apply. Check that online gambling is legal where you live.