League of Legends

League of Legends is a multiplayer online battle arena (MOBA) game that has become one of the defining titles in modern esports. As 5Y Capital noted, it stands on the shoulders of earlier real-time strategy games like *StarCraft* and *Warcraft*, combining their mechanics into a new genre that emerged through iterative evolution rather than从零开始 design . The game was developed by Riot Games, which was later acquired by Tencent—though as 暗涌Waves reported, the relationship between parent and subsidiary reportedly runs in the opposite direction in practice, with the international project team operating with unusual autonomy .

Beyond its commercial success, League of Legends has served as a key testing ground for AI research. FreeS Fund's 2023 discussion highlighted how researchers used reinforcement learning to create NPC opponents in *League of Legends* and *Honor of Kings* that could mimic human-like strategic and tactical play, moving beyond simple combat mechanics to approximate genuine player behavior . More recently, Binson Liu of Doubao told 暗涌Waves that one of his unfulfilled ambitions is building AI capable of fully understanding and reasoning about long-form events in a League of Legends match—analyzing specific turning points, player micro-decisions, and the causal chain of team fights, rather than offering generic praise .

The game also exemplifies how esports evolved from a marketing tool for extending product lifecycles into a standalone industry with sports, entertainment, and internet-native characteristics, as FreeS Fund's 2021 summit traced: its league system, fan economy, and ability to retain viewers who no longer actively play have made it a template for the sector's professionalization .