The League of Legends videogame rank predicts IQ, study finds

Hundreds of millions of people play intellectually-demanding video games every day. What does individual performance on these games tell us about cognition? Here, we describe two studies that examine the potential link between intelligence and performance in one of the most popular video games genres in the world (Multiplayer Online Battle Arenas: MOBAs).

Source: Exploring the relationship between video game expertise and fluid intelligence

I’ve never played League of Legends, but I do know that video game use has been shown to help surgeons performing laparoscopic surgery.