Studio Profile
About Greentube
Greentube is an online casino games developer founded in 1998 and headquartered in Vienna, Austria. The studio has released a catalogue of 300 slot titles distributed across licensed casino operators worldwide. Greentube holds licences from the MGA and the UKGC, ensuring its games meet regulated fairness standards.
The Greentube game library focuses primarily on video slots, with a recurring emphasis on Book Mechanics mechanics. Across the catalogue, the average RTP sits at 95.5%, placing it within the mainstream 95–96% range typical of mid-tier studios. All Greentube slots available on SlotExplorer have been independently reviewed for accuracy, and free demos are linked where available so you can test the games before depositing.
Greentube's connection to the NOVOMATIC land-based estate gives it a large catalogue of well-known titles, but the digital adaptations prioritise portfolio coverage over mobile-first experience.
NOVOMATIC Goes Digital
Greentube was founded in Vienna in 1998 and was acquired by the NOVOMATIC Group in 2011, becoming the group’s primary digital content vehicle. The studio’s catalogue of 300+ titles includes both original digital productions and adaptations of NOVOMATIC land-based hits — Book of Ra Deluxe, Sizzling Hot, and the Dolphin’s Pearl series among them. These titles carry significant brand recognition in German-speaking markets where NOVOMATIC machines dominated arcades and gaming halls for decades.
The B2C presence — several casino brands in Austria and Germany operating under Greentube’s gaming licences — distinguishes it from pure B2B studios. The operational experience feeds back into the product design, as the studio has direct access to player behaviour data that most B2B-only studios do not.
Signature Mechanics
Book Mechanics
BOOK EXPANDING SYMBOL
Editorial Assessment
Our Scores
Good
Editor’s Verdict
Greentube's connection to the NOVOMATIC land-based estate gives it a large catalogue of well-known titles, but the digital adaptations prioritise portfolio coverage over mobile-first experience.
Full Catalog
Greentube Slots (4)
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Common Questions
Greentube — FAQ
Greentube has over 300 games in its portfolio, spanning video slots, live casino, and other verticals. The slot catalogue alone accounts for the majority of titles.
The average RTP across Greentube slots is approximately 95.5%. Individual game RTPs range from around 94% on lower-end titles to 97% on their most competitive releases. Always check the specific game’s paytable for the certified RTP.
Greentube is best known for its use of Book Mechanics. These mechanics define many of their highest-profile releases and are a key reason players seek out their catalogue specifically.
Greentube holds software supply licences issued by the MGA and the UKGC. These require regular third-party auditing of game mathematics, RNG certification, and responsible gambling compliance.
Greentube was founded in 1998 and is headquartered in Vienna, Austria. The studio develops and licenses online casino content to regulated operators worldwide.
Yes. Most Greentube slots are available in demo mode at licensed casinos that carry their catalogue. Demo play uses virtual credits and requires no real-money deposit at most casinos. Some titles may be region-restricted in demo mode.