Play Greentube Slot Games Free Online
Greentube, the digital gaming and entertainment division of NOVOMATIC, boasts a collection of about 500 games, many of them slots. The developer is best known for remaking popular classic land-based games into digital versions for online and mobile casinos.
You can learn more about the developer on this page. Better yet, you can try out some of their best slots for free – no sign-up or downloads required.
Greentube Provider
Most popular Greentube slots
Greentube has a selection of over 440 slots, many of which are accessible in the few states in which the developer is regulated. Notably, its slots are best known for being remakes of classic slot machines.
However, the developer has also been expanding the selection with newer, unique, more innovative slots. Take a look at the five most popular slots from Greentube:
1. Mighty Mayans
Mighty Mayans is a part of the Starlight Jackpots series. It features Greentube’s signature Hold & Spin mechanic, as well as other bonus features, including Wilds, Coin Drops, and Cash Collection symbols with values ranging from 0.5x to 100x.
Notably, as part of the Starlight Jackpot series, the game features four jackpots worth up to 1,000x the total bet.
2. Diamond Cash: Mighty Buffalo
Diamond Cash: Mighty Buffalo is centered on Greentube’s Hold and Spin mechanic. It also packs a few other exciting features, including wilds, sticky symbols that lock in place while the rest spin, and giant symbols that occupy multiple positions on the grid.
It also features a strategic aspect with the Gamble feature, which challenges players to guess the color of a hidden card to double or lose their winnings.
3. Thunder Cash: Sizzling Hot
Thunder Cash: Sizzling Hot is Greentube’s classic fruit slot reimagined with a Lock & Spin jackpot mechanic. Land six or more red Disc symbols to trigger it, and you’ll receive three renewable free spins.
Each Disc locks in place while the remaining reels spin, and landing a new Disc resets the counter back to three. The game pays out 1,000x your bet when you land five of the highest-paying symbols on an active payline.
4. Piggy Prizes: Wand of Riches
Piggy Prizes: Wand of Riches features a 5×3 grid with 15 individual reels that spin independently. It packs a host of bonus features, including Wild symbols, special coin and jackpot symbols, and even a rewind feature for losing spins.
There are four jackpots, including a grand jackpot of 1,000x the bet amount.
5. Silver Lux: Big Winner Spinner
Big Winner Spinner is the first title in the Silver Lux series. It blends the classic and the modern, featuring a retro three-reel stepper gameplay with a modern two-tier wheel jackpot system.
Wilds also double as multipliers, and there are other symbols that also function as multipliers. Volatility is medium, which is convenient for cautious players.
Greentube slot reviews
While we currently don’t have comprehensive reviews of any of Greentube’s slots, we have multiple articles covering the developer’s foray into the American market. You can also look forward to detailed slot reviews over time.
Greentube software
Greentube uses a blend of industry-standard technology and its own proprietary technology to develop its casino games. Based on the filters on the website’s games lobby, the developer appears to mostly rely on its proprietary NovoSDK technology to develop most of its games.
NovoSDK enables developers to write game code that is adaptable across different platforms – developers write game code once and apply it across different platforms without the need for more coding. This technology is a cross-compiler and toolkit developed in-house by the parent company NOVOMATIC.
The developer also relies on HTML5 for its games. Notably, HTML5 is the preferred tech for developing mobile-compatible games, and Greentube has a reputation for developing mobile-first online games.
Graphics
Greentube seems to specialize in adapting classic slots such as Sizzling Hot for the digital and mobile platforms. To this end, many of its games feature 2D and 3D graphics. While the graphics are high-quality and sharp, many players still view them as somewhat old-school because of the games’ original designs. However, they have also been expanding their collection with newer Deluxe series that boast significantly updated sharper, more aesthetic visuals and animations.
Sound
Greentube uses the IP audios of most of the classic games that it remakes. Overall, the soundtracks in its games can be described as engaging. They are designed to make the gameplay feel more immersive. Interestingly, many games feature soundtracks designed to mimic the atmospheric experience of a physical casino floor.
Playability
Greentube aims for a smooth gameplay experience with all of its games. It uses the NovoSDK technology and the Plurius system to ensure smooth cross-platform performance. To this end, the games’ progress and results are synchronized across all platforms, enabling a smooth transition across mobile devices, desktop computers, and even physical terminals.
The online games have responsive designs that make their user interfaces and layouts adapt to different devices and screen sizes. Moreover, they are optimized for mobile, touch-screen devices.
Safety and trust
Greentube is a credible game developer, and its games are both safe and trustworthy. The company is regulated internationally and in the U.S. across various states. Notable jurisdictions and regulators include the Michigan Gaming Control Board, the New Jersey Division of Gaming Enforcement, and the Connecticut Department of Consumer Protection.
To this end, Greentube games guarantee fair play. They use Random Number Generators (RNG) that are tested and certified by independent laboratories like SIQ and GLI.
Greentube also takes all the necessary measures to keep its players safe. It is the first game developer from Austria to receive the Global Gambling Guidance Group certification, one of the highest and strictest international player protection standards.
Types of Greentube games
Greentube does a little bit of everything when it comes to the game types in its portfolio. Slots make up the majority of its games. It also develops table games, video poker, video bingo, scratch cards, and arcade games. Here’s a quick overview of the various Greentube game types:
Slots
Greentube currently has a collection of 443 online slots. Some of the top games on the list include Golden Ark, Book of Ra, Panda Pals, and Gorilla Cash. It also has localized games like American Respin. Some of the games are stand-alone titles, while others are series.
Table Games
The developer also has 11 table games in its portfolio. They include different variations of roulette, baccarat, and blackjack. Top games in this category include European Roulette, Lucky Lady’s Roulette, Admiral Blackjack, Admiral Roulette, and Royal Crown Blackjack.
Video Poker
Greentube also has a small selection of video poker games – three to be precise. They include American Poker II, Jacks or Better, and Deuces Wild.
Video Bingo
Greentube also has 19 video bingo games under its belt. The selection is colorful and robust, with popular titles like Wizard Bingo, Silverball, Nineballs Bingo, Pharao’s Bingo, and Crazy Cactus Bingo.
Scratch Cards
The developer also has 7 scratch cards for players who prefer a fast-paced, simpler gameplay experience. Top titles in this category include Flame Queen, Bayou Queen, Luck of the Dead, and Golden Safari.
Pub & Arcade Games
Pub and arcade games are also ideal for a more casual, fast-paced gameplay experience. Greentube offers nine games in this category, including Power Joker, Simply Wild, Random Runner, and Super Dice.
Where can you play Greentube slots?
While Greentube is an international gaming software developer based in Austria, it is regulated and licensed in four U.S. states, including Connecticut, Michigan, New Jersey, and Pennsylvania.
These are the only locations from which you can play Greentube games. As for the casinos offering the developer’s games, there are many great options, including:
BetMGM
BetMGM offers quite a number of slots from Greentube, including popular titles like Prized Panda, Apollo God of the Sun, and the full Diamond Cash series. The platform and games are available to players in New Jersey, Pennsylvania, and Michigan. BetMGM often ranks as the overall best online casino in the U.S.
FanDuel
FanDuel also offers popular Greentube slots such as Silver Lux: Big Win Spinner and Piggy Prizes: Wand of Riches. It is available in all states where Greentube is regulated, including Michigan, Pennsylvania, Connecticut, and New Jersey. The casino has a reputation for the fastest withdrawals if you are looking to play real-money games.
DraftKings
DraftKings stands out for its all-in-one gambling app, which is convenient if you prefer playing on the go. It offers many games from Greentube, all of which are mobile-compatible. Notably, it is one of only two platforms offering Greentube games in Connecticut.
Unique slot features with Greentube
Greentube tries to make its games stand out by introducing new innovative mechanics, even in its classic remakes. There appears to be a pattern whereby the most unique mechanics are limited to specific game series or franchises. Here’s an overview of the developer’s most unique, exciting slot mechanics:
Lock & Spin
Greentube has a signature Hold & Spin mechanic that it dubs “Lock & Spin.” It unlocks a dedicated round of three free spins when you land at least six special symbols. The respins are regenerative, meaning that you can unlock more when a new special symbol lands. The developer also combines this mechanic with another feature dubbed “Wincreasing,” which unlocks escalating rewards.
Expanding Symbols
Expanding symbols is a pretty standard industry mechanic, whereby several symbols combine to make one large symbol that covers multiple positions on the grid. Interestingly, the developer tends to apply this mechanic in its Book-style slots, such as the Book of Ra series.
Progression and Feature Ladders
Some games have progression and feature ladders that unlock bigger, more exciting rewards based on certain milestones. For example, Diamond Tales: The Ugly Duckling has a chapter progression system whereby players unlock higher chapters with new or better features when they collect enough special symbols.
Tactical Board Game Bonuses
Greentube has also introduced an unusual, tactical Board Game feature to its newer games, including Gang Wars. The mechanic uses special symbols alongside multipliers to add a fresh twist to the standard gameplay style.
Stepper and Wheel Mechanics
This mechanic applies the classic Stepper mechanic and introduces a Wheel mechanic twist. The mechanic features a dual-wheel system, whereby three scatter wheels trigger the outer wheel to start spinning, awarding credit wins. Besides credit wins, players can also land an upgrade arrow, which unlocks the inner wheel, awarding progressive jackpot wins.
Software developers similar to Greentube
Greentube competes against over a dozen other game software developers, and while it does try hard to stand out, it shares some striking similarities with a few other developers. Here’s an overview of three software developers similar to Greentube:
IGT (International Game Technology)
Like Greentube, IGT is known for remaking iconic slots and digitizing them for online and mobile platforms. Some of its most popular slots are Wheel of Fortune and Cleopatra. Interestingly, its main slot mechanic, Cash Eruption, uses a Hold & Spin mechanic similar to Greentube’s.
Light & Wonder
Light & Wonder shares Greentube’s cross-platform approach, designing games that look, feel, and play the same way on physical, desktop, and mobile platforms. It is perhaps best known for iconic slot series like Dancing Drums and 88 Fortunes.
Pragmatic Play
Pragmatic Play is relatively new to the scene compared to Greentube, but its speed of production rivals most other developers. It has a mobile-first approach similar to Greentube’s. Its most popular titles include the Big Bass Bonanza series alongside other games like Sweet Bonanza and Gates of Olympus.
