Novomatic · Greentube · released 2005
Novomatic and Greentube
Novomatic builds the cabinets; Greentube publishes them online. Both matter when you are checking whether a casino stocks the real build.
Practice credits only · No download · No sign-up · 18+
About the studio
Novomatic is an Austrian gaming group founded in 1980, best known for arcade cabinets. Greentube, acquired in 2010, is its online arm and the entity that licenses browser builds to operators.
Novomatic builds the maths
Game design, reel strips and paytables originate with the parent company.
Greentube publishes online
Operators license from Greentube. A genuine build carries that attribution in the game info screen.
Why it matters to you
Clones with copied artwork and altered maths are common. The provider name inside the game is the cheapest authenticity check you have.
Licences explained
Greentube holds licences across regulated European markets, and its builds are submitted to independent test houses. Certification is per build and per market, which is why the same title can carry different RTP settings in different jurisdictions.
Other slots worth playing
The studio's catalogue extends well beyond the book genre — Lucky Lady's Charm, Sizzling Hot and Dolphin's Pearl are all long-running Novomatic titles built on the same design philosophy: simple mechanics, high variance, no bonus buy.
Ready to play for real?
Licensed operators only, matched to where you are. Read the terms before you deposit.
Play Book of Ra18+ · Terms and wagering requirements apply · Gamble responsibly
Play for entertainment, never for income
Gambling carries real financial risk and can become an addiction. Only stake money you can afford to lose, set a deposit and time limit before you start, and never chase losses. Free confidential help is available.