Greentube Slots & Casino Games
Greentube's indexed catalogue of 237 slots includes high-volatility titles that pay up to 50,000x stake at peak, alongside a portfolio average return of 94.8% across all titles. Themes with strong representation in the portfolio include Fruit, Gems and Animals, drawing players who follow specific visual and narrative styles. The portfolio is actively expanding, with 6 new releases in the last 90 days.
In brief
Greentube: the digital custodian of Europe's enduring reel-machine vocabulary
Greentube is NOVOMATIC's digital gaming division and a long-running bridge between casino-floor slot design and online distribution. Its defining titles include Book of Ra, Sizzling Hot Deluxe, Lord of the Ocean, Lucky Lady's Charm deluxe and the newer Diamond Tales: The Ugly Duckling.
The house style begins with fixed reels, fruit symbols, books, crowns and uncomplicated bonus rounds, then layers on Win Ways, linked-prize systems and modern jackpot families. The catalog is volatility-heavy by broad-market standards, and its typical RTP sits closer to 95% than 96%.
Curated picks·22 of 237 games
Best Greentube Games
| Slot | Score | RTP | Volatility | Max Win |
|---|---|---|---|---|
 Bingo Staxx Thunder PowerGreentube | 82 | 96.11% | Medium/High | x20000.00 |
 Diamond Tales: The Ugly DucklingGreentube | 80 | 95.04% | High volatility | x50000.00 |
 Book of Ra deluxe 10: Win WaysGreentube | 77 | 95.15% | High volatility | — |
 Diamond Tales: The Little MermaidGreentube | 76 | 95.04% | — | x50000.00 |
 Pots of Treasure: Win WaysGreentube | 76 | 96.12% | Medium volatility | x1000.00 |
 Gems of GizaGreentube | 75 | 95.15% | Medium/High | x20000.00 |
 Book of Ra Deluxe Win WaysGreentube | 75 | 95.13% | Medium/High | — |
 Rise of Tut MagicGreentube | 74 | 95% | High volatility | — |
 Cyber WildzGreentube | 73 | 94.99% | High volatility | x20000.00 |
 Power Prizes Royal CraneGreentube | 73 | 95% | High volatility | x6714.00 |
- GreentubeRTP96.11%Max Winx20000.00Medium/High
- GreentubeRTP95.04%Max Winx50000.00High volatility
- GreentubeRTP95.15%Max Win—High volatility
- GreentubeRTP95.04%Max Winx50000.00
- GreentubeRTP96.12%Max Winx1000.00Medium volatility
- GreentubeRTP95.15%Max Winx20000.00Medium/High
- GreentubeRTP95.13%Max Win—Medium/High
- GreentubeRTP95%Max Win—High volatility
- GreentubeRTP94.99%Max Winx20000.00High volatility
- GreentubeRTP95%Max Winx6714.00High volatility
New Greentube Games
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Series
Greentube game series
Franchises from Greentube — each links to the full series with every game side by side.
- Bingo Staxx2 games
- Book of Ra4 games
- Brilliant Pots3 games
- Cash Cascade2 games
- Cash Connection9 games
- Diamond Cash15 games
- Diamond Link11 games
- Diamond Mystery13 games
- Diamond Tales4 games
- Lock Breakers2 games
- Lone Star Link3 games
- Lord of the Ocean2 games
- Lucky Lady's Charm2 games
- Match More2 games
- Money Maker2 games
- Piggy Prizes5 games
- Random Runner2 games
- Silver Lux5 games
- Simply Wild5 games
- Starlight Jackpots6 games
- Thunder Cash6 games
Fresh Greentube reviews
18 games
Studio score breakdown
High confidence (100%)Six signals shape this studio's composite score. Percentile-ranked against the full catalog.
Greentube: the digital custodian of Europe's enduring reel-machine vocabulary
- Specialization: online adaptations of NOVOMATIC classics alongside new video slots and linked-prize families.
- Recognizable games: Book of Ra, Sizzling Hot Deluxe, Lord of the Ocean and Lucky Lady's Charm deluxe.
- Core mechanics: expanding symbols, free spins, fixed paylines, Win Ways, hold-and-spin structures and jackpot links.
- Release model: established names return through Deluxe, Magic, Win Ways, Cash Connection, Thunder Cash and Diamond Link editions.
- Catalogue character: fruit-machine directness at the core, with a growing layer of themed series and contemporary features.
Character
- Cabinet continuity. Greentube preserves the visual shorthand and measured pacing associated with NOVOMATIC's land-based games.
- Franchise longevity. Book of Ra and Lord of the Ocean have remained active through sequels, conversions and feature-led editions.
- Classic-first math. Wilds, scatters and free spins remain more central than elaborate cluster systems across much of the catalog.
- Modern wrappers. Diamond Link: Mighty Dwarves Inc and Star Hit Jackpots show a supplier adding current jackpot structures without abandoning familiar reel grammar.
History and positioning
Greentube traces its beginnings to 1998 in Vienna, when Dürrschmid & Reisinger OEG launched the 3D sports game Ski Challenge. It subsequently became part of NOVOMATIC and developed into the group's digital gaming and entertainment division, giving it access to a deep bank of established casino-floor concepts.
The catalog's dated arc is unusually clear. Book of Ra and Book of Ra deluxe established the book-slot lane, while Sizzling Hot Deluxe and Ultra Hot Deluxe carried fruit-machine design online. Lord of the Ocean added a durable fantasy-adventure identity that later returned in Magic and bingo forms.
Recent releases have not discarded that inheritance. Instead, Greentube repackages familiar brands through Win Ways, Diamond Link, Cash Connection and Thunder Cash, while series such as Diamond Tales provide a more illustrated, digital-native counterweight.
Known games
- 2005: Book of Ra
- 2007: Sizzling Hot Deluxe
- 2008: Book of Ra deluxe, Lord of the Ocean, Ultra Hot Deluxe
- 2012: Captain Venture
- 2019: Lucky Lady's Charm deluxe
- 2020: Lord of the Ocean Magic
- 2022: Book of Ra deluxe 10: Win Ways, Sizzling Hot Deluxe 10 Win Ways
- 2023: Diamond Tales: The Ugly Duckling, Book of Ra Deluxe Win Ways
- 2024: Star Hit Jackpots, Diamond Link: Mighty Dwarves Inc
Flagship lines
Book of Ra
Book of Ra is Greentube's defining digital inheritance: a compact book slot built around an expanding-symbol free-spin feature. Book of Ra deluxe and the Win Ways editions preserve the recognizable subject while altering reel coverage and winning structures.
Sizzling Hot
Sizzling Hot Deluxe represents the catalog at its most stripped back, using fruit, sevens and classic paylines. Sizzling Hot Deluxe 10 Win Ways updates that formula without disguising its mechanical ancestry.
Lord of the Ocean
Lord of the Ocean applies the familiar book-slot framework to an underwater theme and has proved durable enough to support Lord of the Ocean Magic. It is more ornate than the fruit games but remains straightforward by modern feature-stack standards.
Diamond Link
Diamond Link: Mighty Dwarves Inc belongs to a broader linked-feature lane populated by recurring animals, historical figures and fantasy characters. It is Greentube's clearest move toward contemporary prize-symbol and jackpot presentation.
Mechanics and product systems
- Expanding-symbol free spins: Book of Ra and its Deluxe variants use a selected symbol that can expand during the bonus.
- Classic fixed paylines: Sizzling Hot Deluxe and Ultra Hot Deluxe rely on familiar reel evaluation with little procedural overhead.
- Win Ways: Book of Ra Deluxe Win Ways and related editions replace or expand traditional line evaluation with more positional combinations.
- Linked prize features: Diamond Link and Cash Connection games use collected value symbols and branded jackpot-style frameworks.
- Wilds and scatters: these remain the catalog's standard connective tissue, often supporting free spins rather than complex multi-stage bonuses.
Market influence
Greentube's market weight comes from continuity. It can take games recognized from European gaming floors, convert or extend them for online play, and distribute the resulting catalog across long-established regulated markets as well as newer North American jurisdictions. The company has entered New Jersey, Michigan and Connecticut, with its games live through major operators in Connecticut.
Compared with digital-first suppliers such as RubyPlay, Greentube is more conservative and visibly tied to cabinet-era design. That can make portions of the library feel dated, but it also gives the studio a recognizable identity and a body of titles whose commercial life spans decades rather than release cycles.
Questions & Answers
Greentube FAQ
Greentube is best known as NOVOMATIC's digital division and for enduring slot brands including Book of Ra, Sizzling Hot Deluxe, Lord of the Ocean and Lucky Lady's Charm deluxe.
Classic reel structures are central to the catalog, but newer releases add Win Ways, linked-prize features and themed jackpot series.
Greentube regularly preserves a recognized theme while changing paylines, reel behavior or bonus frameworks through Deluxe, Magic, Win Ways and linked-series editions.
Catalog RTP is typically around 95%, with high and medium volatility accounting for much of the selection. Settings can differ by game or operator configuration.