InnoGames has titles which now streatch across 50 million registered players worldwide such as Tribal Wars, The West, and Grepolis. The company was founded in 2007 by Eike and Hendrik Klindworth along with Michael Zillmer.
All the games are free-to-play with the business model based on virtual goods like being able to upgrade to better (virtual) weapons. Bigpoint and GameForge are rivals in the space.
Fidelity Growth Partners Europe is drawing on its new £100 million fund, announced in January which focuses on venture and growth equity investment in European tech companies.