Mobile game developer Supercell is on a roll with Clash of Clans , seeing its first increase in year-over-year revenue since 2015. The news comes as little surprise after the stellar performance of the release of the new Gold Pass in May of 2019, giving players long-desired cosmetics and additional ways to earn in-game resources through the implementation of a model similar to the ever-popular Battle Pass which first began to see prevalence throughout the video game industry following its succes...