Classic Jackpot Random Runner slot artwork
Classic Jackpot Random Runner
Runner Unlimited Cascading Wins slot artwork
Runner Unlimited Cascading Wins

Greentube is a major European-based developer and supplier of online slot games. The company can be traced back as far as 1998, when it was known under a different name and had launched a 3D sports-related game. Two years later, it was renamed Greentube Internet Entertainment Solutions AG and the focus of the company turned to casino games. Ten years down the track in 2010, Greentube was acquired by NOVOMATIC Group.

Greentube in the modern era

Presently, Greentube operates as the entertainment and digital gaming division of the larger parent group NOVOMATIC. The company is headquartered in Vienna, Austria but also operates subsidiary units in Malta, India, Canada, Greene, the United States, the Netherlands and the UK. The company employs up to 1000 staff, which work in their various offices around the globe. Greentube’s regulatory and licensing obligations are handled through its Maltese subsidiary, Greentube Malta Limited.

Greentube slot were first released in 2010 when the company came under the control of NOVOMATIC. Greentube came up with adaptations of some of the popular land-based slot titles owned by Novomatic. The developer hit the map by primarily developing online versions of the highly popular slot titles from NOVOMATIC.

Greetube slots growth

One of the most popular adaptations from Greentube was the online adaptation of the title Book of Ra. The Egyptian theme and the high volatility in the game made it significantly popular in many markets like Russia and Germany. Some of the other major adaptations include Lucky Lady’s Charm and Sizzling Hot deluxe, an original online title from Greentube. The company presently boasts more than 500 online titles, and they are accessible to players from across South America, Australia, North America, Europe, and Asia.

Growing their portfolio

While online adaptation of existing popular land-based titles was a significant strategy with regard to the evolution of Greentube games, the developer also created its own gaming mechanics. Among the gaming mechanics developed by Greentube, Win Ways is one of the most prominent ones. The mechanic enables a player to have a higher chance of winning by removing winning symbols and allowing new ones to get into those positions.

Some of the popular Greentube games in which the mechanic is found include Apollo God of the Sun 10 Win Ways, and Book of Ra Deluxe (10 Win Ways version). Another mechanic Greentube introduced was Diamond Link, which connects various jackpots into a slot game. It was first introduced in 2019 in the slot game Diamond Link: Mighty Elephant. The mechanic proved popular and was added to several other slot titles, along with additional features like wild spin, colossal spin and sticky spin.

While it is ultimately owned by NOVOMATIC, Greentube also develops games for Light & Wonder. It’s slot games have also been recognised by industry experts and in 2025, it was bestowed with the European iGaming Award for Best Game Developer in recognition of Greentube’s innovation in both slot games and casino games development. In 2022, the company won the EGR Nordics Awards – Casino Content Supplier of the Year award in recognition of its work in the online gaming sector, with a particular focus on the Nordic region.