Roblox

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Persona 5: The Phantom X

Roblox is a massively popular sandbox platform, released in 2006 but continually updated and widely adopted by younger audiences globally. It consistently reports tens of millions of monthly active users, with peak daily actives usually around 5–10% of monthly users. Recent filings and reports indicate Roblox has over 60 million daily active users, but this covers global user logins across many devices and experiences. Adjusting conservatively for reporting and engagement variance, daily actives typically exceed 50 million worldwide, but simultaneous users generally peak in the hundreds of thousands to low millions. As a platform with persistent worlds, it fits the broader MMO definition.

Persona 5: The Phantom X is a recently released (April 2024) mobile/PC RPG with strong backing from notable publishers like Sega, Atlus, and Perfect World Games. Its association with the well-known Persona franchise and release across mobile platforms suggest a moderate but sizable player base, especially in Asia. However, it is not marketed as an MMO—it's primarily a single-player turn-based RPG with limited multiplayer features, so it doesn't fit MMO criteria.