One Riot metric holds the only key to LoL Arena becoming a permanent mode

The Arena’s 2v2v2v2 game mode in League of Legends has been popular among players, providing a fun and casual alternative to Summoner’s Rift. But “sustained player engagement” is stopping Riot Games from making the Arena a permanent addition.

Despite the positive feedback that Arena has received over the years, it has only come as a recurring game mode, leaving players asking for more.