League of Legends

League of Legends remains the undisputed king of PC gaming, boasting over 100 million monthly active players—a feat no other game on this list has matched. Its esports ecosystem generates millions in prize pools and professional salaries, rivaling traditional sports. Riot Games' AI behavioral system, launched in response to its infamous toxicity, has reduced abusive chat by 20% since 2020. This data-driven intervention proves that even the most chaotic communities can be tamed with technology.