US video game developer Riot Games, creator of League of Legends, retains bragging rights to the most popular PC game in China nearly a decade and a half after its launch.First introduced in 2009 and brought to the mainland in 2011, the multiplayer online battle game has been around longer than many of those who play it – a remarkable feat in an industry known for its rapid shifts.The secret to the game’s longevity may lie in the sustained appeal of the League of Legends esports scene, as...