The Idolmaster: Cinderella Girls

VS

ArcheAge

The Idolmaster: Cinderella Girls is a long-running mobile/social idol management game launched in 2011. It remains notable in Japan with an active niche fanbase, regular events, and ties to the broader Idolmaster brand, but is well past its peak popularity. Its daily active players are likely in the tens of thousands, supported by ongoing in-game events, but fallen off from earlier years. Not an MMO, as it lacks persistent world and massive real-time multiplayer interactions.

ArcheAge is a well-known sandbox MMORPG launched in 2013. While it initially drew strong interest due to its open world and sandbox systems, its player base has shrunk over the years, in part due to controversial monetization decisions and competition. Recent trends and community figures suggest the game retains a loyal but relatively small population, with most activity centered in a few regions. It is clearly an MMO based on its persistent world and large-scale multiplayer interaction.