Riot Games' ambitious Massively Multiplayer Online (MMO) title set in the League of Legends universe continues to be a work in progress, according to co-founder Mark Merrill. Speaking at PAX, Merrill described the project as the studio's "grail quest," a term reflecting the immense challenge and ambition involved in its development. The game was first announced in August 2021, and since then, it has undergone significant changes and seen several high-profile developers depart the project.

Merrill acknowledged the difficulty of the undertaking, stating that the team's focus is on execution. "We know what players’ hopes and dreams are," he remarked. "It’s just on us as a team, and can we succeed in the execution?" The "grail" moniker, he explained, is a lighthearted acknowledgment of the arduous journey, with many developers facing challenges akin to a knight's quest for the Holy Grail. He expressed optimism about the team's current efforts and the project's future.

However, Merrill's comments were met with a degree of skepticism from the gaming community, particularly given recent developments with Riot's fighting game, 2XKO. The studio recently announced that active development for 2XKO would cease at the end of the year due to a perceived lack of players, a decision that has fueled player concerns about the long-term viability of Riot's larger projects, including the MMO. Online commenters have expressed doubts about Riot's ability to sustain an MMO, with some anticipating it might face a similar fate to 2XKO if it doesn't achieve massive success comparable to established titles like World of Warcraft.

Despite these concerns, there have been signs of renewed hope. In January, Raymond Bartos, a former World of Warcraft producer, joined Riot Games, sparking speculation that his expertise could benefit the MMO project. This appointment followed an announcement in 2024 that the MMO had been "reset," with Riot going back to the drawing board. Previously, in 2022, former executive producer Greg Street had cautioned that there was "no guarantee" the League MMO would be released, before departing Riot in early 2023. At the time of the development reset, Merrill stated that the extended silence was intended to give the team the necessary space to focus on the substantial work ahead, assuring fans that "no news is good news" as they poured their efforts into creating a game they hoped players would love.