The Idolmaster: Cinderella Girls

VS

Florr.io

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.

Florr.io is a browser-based indie action game released in 2020 by Matheus Valadares, known for creating other successful io games like diep.io and agar.io. While past io games had massive player spikes, Florr.io's current active player base is significantly lower given its age, niche appeal, and the general decline of the io genre after their peak, but it maintains a dedicated community. A conservative estimate considering ongoing casual traffic is about 10,000–20,000 daily players.