Sword Art Online: Integral Factor

VS

Grand Chase

Sword Art Online: Integral Factor is a mobile and PC action RPG published by Bandai Namco, released in 2018. While it had popularity in its first years—especially among SAO anime fans—player base has declined over time due to lack of major updates and competition in the mobile RPG space. Still, it retains a steady niche audience, particularly in Asia. Estimate: 35,000 daily players.

Grand Chase is a well-known side-scrolling action MMORPG originally developed by KOG Studios. Although the classic PC version was shut down in most regions years ago, the mobile relaunch (Grand Chase: Dimensional Chaser) and a Steam version have seen some limited success since 2017. Due to its age, niche appeal, and relatively modest marketing outside its core market (primarily Southeast Asia and Latin America), I estimate its daily active player base to be low thousands. The game does have persistent multiplayer elements and instanced co-op/competitive modes, qualifying as an MMO.