Greentube — Slots, Games and Provider Overview

Greentube did not begin as a conventional slot studio. Its first notable product was the 3D game Ski Challenge, released in 1998 by Austria’s Dürrschmid&Reisinger OEG. In 2000, the company adopted the name Greentube Internet Entertainment Solutions AG and gradually expanded into online entertainment and casino software.

Greentube joined NOVOMATIC Group in 2010. This shaped its modern role: the company became the group’s digital gaming and entertainment division and gained a direct route for bringing well-known NOVOMATIC land-based games online.

This is why Book of Ra, Sizzling Hot, Lucky Lady’s Charm and Dolphin’s Pearl are often described as both NOVOMATIC and Greentube games. Historically, they are land-based brands from the group, while Greentube is responsible for a significant part of their digital life, newer online versions and distribution.

The main corporate brand now operates through Greentube GmbH in Vienna. Separate licensed and operational functions are also handled by Greentube Malta Limited, Greentube Alderney Limited and other group entities. These companies should not be treated as a single legal entity.

Greentube is a B2B supplier of games and technology. The wider group also has operator and social-casino businesses, but registration, deposits, withdrawals, KYC and bonuses at a particular casino must not be attributed to Greentube as a game provider.

As of 31 August 2026, the official Greentube Games section listed 513 games. The Slot Games filter showed 458 results. The rest of the catalogue includes table games, video poker, video bingo, pub & arcade, scratch games and other formats.

These figures describe Greentube’s current official showcase, but they should not be interpreted as “513 games developed by one Vienna studio”. Greentube is part of a much larger NOVOMATIC operation and has subsidiaries and specialist teams. Its corporate Subsidiaries page, for example, separately lists AbZorba Games, Alteatec, BlueBat Games, Funstage and Platogo.

Part of the catalogue also consists of established NOVOMATIC blue-chip brands that originated in the land-based sector. For a player-facing review, it is more accurate to describe this as a portfolio supplied and developed by Greentube rather than attribute every title to one development team.

The total is dynamic as well: new games are added regularly, and regional versions or Buy Bonus variants may appear as separate catalogue entries.

Book of Ra is the flagship historical Greentube/NOVOMATIC brand. Its classic formula combines an Egyptian theme, a Book symbol acting as Wild and Scatter, and Free Games with a special expanding symbol. In the modern Book of Ra Deluxe Buy Bonus version, the official rules specify five reels, 10 paylines, a base RTP of 94.26% and a separate 94.00% RTP for the Buy Bonus.

Sizzling Hot Deluxe represents the opposite side of the portfolio: a straightforward five-reel, five-payline fruit slot whose core loop is not overloaded with bonus features. The classic configuration is widely documented with an RTP of 95.66%.

Lucky Lady’s Charm Deluxe uses five reels and 10 paylines, with Free Spins and multipliers. Current operator and game databases commonly list the main version at 95.13% RTP, although other versions in the series use different maths.

Other classic brands include Lord of the Ocean, Dolphin’s Pearl, Columbus, Reel King, Ultra Hot, Mega Joker and more titles familiar from NOVOMATIC land-based machines. Greentube continues to revisit them through newer technologies and game families, so the classic portfolio is not simply an archive.

Cash Connection combines several familiar Greentube/NOVOMATIC brands with a modern jackpot-led structure. The official family includes versions of Book of Ra, Sizzling Hot, Dolphin’s Pearl and Charming Lady, alongside original themes.

A common feature in the series is Lock & Spin. When enough special Coin symbols land, a separate bonus mode begins. Cash and jackpot symbols lock in place, while the remaining-spin counter resets when another qualifying symbol appears.

In Cash Connection – Golden Book of Ra, six or more Coin symbols trigger Lock & Spin. Additional Mega and Super Bonus features can launch Free Games with the familiar special expanding symbol, combining a modern jackpot mechanic with the historical Book of Ra formula.

The family continued to expand in 2026. Cash Connection – Charming Lady’s Boom Coins launched on 19 May with Boom Pays that can be doubled, while Cash Connection – Golden Sizzling Hot became available to B2B partners on 14 July. The releases show that Greentube continues to use its classic brands as active parts of new product lines rather than only remastering old games.

Diamond Link is one of Greentube’s major modern slot families. Its core idea revolves around collecting diamond symbols and entering a separate jackpot feature with four levels: Mini, Minor, Major and Grand. Extra features such as Wild Spin, Sticky Spin and Colossal Spin vary by individual game.

In Diamond Link: Mighty Elephant, six diamond symbols are enough to trigger the main feature. The bonus begins with three spins, and each new diamond resets the counter to three. Cash values and four jackpot levels can appear inside the feature. Mecca’s operator version lists an RTP of 95.00%, but that figure must not be applied to the whole Diamond Link series.

The Diamond Link line includes Mighty Elephant, Mighty Emperor, Mighty Buffalo, Almighty Wolf, Cops ‘n’ Robbers, Almighty Kraken, Mighty Sevens, Mighty Viking, Mighty Stampede and other variants. Some releases combine Diamond Link with Win Ways or local dice-style formats.

Diamond Mystery works differently. The family brings classic fruit and crown slots into a four-level mystery jackpot structure. Greentube’s official page cites potential maximum wins of up to 5,000x the stake, while noting that figures can vary from one game to another.

Win Ways is Greentube’s take on multi-way and cascading slot design. Winning symbols are removed, new symbols drop into the empty positions, and another combination can form without a new base-game stake. Some versions add a separate upper reel set and allow Wilds to transfer between grids.

Book of Ra Deluxe Win Ways uses six reels and offers up to 117,649 ways to win. Cascades are combined with the traditional Book of Ra Free Games and special expanding symbol, so the modern structure keeps the defining mechanic of the original.

The Win Ways range also includes Lucky Lady’s Charm, Sizzling Hot, Lord of the Ocean, Charming Lady, Apollo God of the Sun, Sharky’s Choices and Diamond Link: Mighty Sevens.

Greentube also uses cascading mechanics outside the Win Ways family. Gorilla Cash, for example, is a six-reel pay-anywhere slot built around a tumble mechanic. The current catalogue is therefore much broader than the classic “5×3 with fixed paylines” model, even though that format remains an important part of the brand’s heritage.

Piggy Prizes has become one of Greentube’s more prominent recent game families. It uses Coin symbols, collect features, recurring characters and several ways to enhance bonus rounds.

On 23 June 2026, Greentube released Piggy Prizes Wish of Riches 2. The game uses 15 independently spinning positions and 40 paylines. Features include Magic Spins, Magic Rewind, Super Genie, Free Games and Xtreme Bet. Current industry data places RTP at roughly 95.05–95.15%, depending on the configuration.

A Buy Bonus version exists in some licensed configurations. This distinction matters: a provider offering Buy Bonus functionality does not mean the feature is available in every country or at every casino. Regulatory requirements and operator settings can disable direct bonus purchases.

Other Piggy Prizes titles include Wand of Riches, Railroad Rumble, Jingle Jackpots and Coins O’ Plenty. In August 2026, Greentube’s official CDN already contained rules for Piggy Prizes Lock & Spin – Ghost of Gambini, indicating further expansion of the family.

Greentube does not have one universal RTP. Even within a single series, there may be standard, Buy Bonus, Ante Bet, Xtreme Bet or regional configurations. The correct RTP should therefore be taken from the rules for the exact version being played.

The historical Book of Ra Classic was listed at 95.10% RTP in an older official Greentube catalogue, further illustrating how the maths can differ between generations of the same brand. The newer Book of Ra Deluxe Buy Bonus uses a different configuration.

Claims such as “Greentube RTP is 95%” are therefore only very rough observations and are not suitable for checking a specific game. Before playing for money, open the Rules or Paytable supplied by the chosen operator.

Although Greentube is primarily associated with slots, its official catalogue covers other categories. The table-games section includes versions of roulette, blackjack and poker-style games. In 2024, for example, the company refreshed this part of its range with Lucky Lady’s Roulette and Royal Roulette.

The current Video Poker section lists American Poker II, Deuces Wild and Jacks or Better. These titles use classic card-game mechanics and should be assessed through their own rules and paytables rather than slot RTP figures.

Video Bingo has historically been particularly important in parts of Latin America. Greentube has supplied 1-2-3 Bingo, Bingo 10 and other bingo products alongside slots and table games.

This means the search intent behind “Greentube games” is broader than “Greentube slots”. Slots still dominate the catalogue, however: 458 of the 513 current entries in the official showcase are listed under Slot Games.

Greentube’s official website is greentube.com. The All Games section lets users filter the catalogue by game type and technology, sort titles by name or release date, and open individual game pages.

Greentube uses novoSDK and Mynt technologies. Current game rules for Book of Ra Deluxe Buy Bonus list novoSDK and HTML5 Desktop, while the interface also provides controls designed for mobile and tablet use.

The official site presents the portfolio as available on desktop and mobile, including iOS and Android through browser-based integrations. This does not mean players need a separate Greentube app: games are normally launched through a casino or a demo environment.

Many game pages include a demo. Free-play versions let users examine the reels and bonus features without staking money, but they do not guarantee that a specific operator offers the same title, the same RTP or every optional feature.

Greentube’s regulatory status is distributed across different legal entities in the group. Greentube GmbH holds an active Remote Gambling Software licence from the UK Gambling Commission under account number 41020. The current register shows the Gambling Software Remote activity as active since 16 March 2015.

Greentube Malta Limited holds Malta Gaming Authority licence MGA/CRP/120/2006. The current Dynamic Seal lists a B2B Critical Supply Licence for Type 1 Gaming Services / Casino, as well as a separate B2C Gaming Service Licence.

These are different legal and regulatory layers. A supplier’s B2B authorisation can permit the provision of gaming software within a regulated system, but it does not mean every casino offering Book of Ra or Sizzling Hot is licensed by the same regulator.

The group also includes other licensed entities, such as Greentube Alderney Limited. For a general provider review, however, those permissions should not be compressed into a fictional single “global Greentube licence”. Market access depends on the relevant legal entity, local requirements, game certification and the operator’s own regulatory status.

Greentube releases games regularly, so any section covering recent launches changes quickly. As of 31 August 2026, the official site listed Flaming Devil as the latest release. It became available to B2B partners on 18 August.

Flaming Devil uses 243 ways, Devil Collect and a Free Games Wheel. The Devil collects visible coin prizes, while the wheel can add spins or increase a cumulative multiplier during Free Games. It is an example of Greentube’s more modern design approach, combining a familiar visual theme with a layered collect mechanic.

Before that, Cash Connection – Golden Sizzling Hot launched on 14 July, Piggy Prizes Wish of Riches 2 on 23 June, Cash Connection – Charming Lady’s Boom Coins on 19 May, Piggy Prizes Railroad Rumble on 28 April, Rumble Riches Haulin’ Gold on 30 March, Firecracker Frenzy Money Toad on 17 February and Gorilla Cash on 27 January.

Highway to Bell Stack & Collect was already being promoted in Greentube’s iGB L!VE 2026 material, but the official showcase gives its launch date as 22 September 2026. As of the review date, it should therefore be treated as upcoming rather than already released.