RetroMMO

VS

Roblox

RetroMMO is a small-scale indie fantasy MMORPG released in 2020. Although labeled as an MMO and offering a persistent world with multiplayer elements, the game's indie status and niche retro appeal limit its player base. After the initial launch, such games usually see reduced active population unless they gain significant cult following. An estimated 200–300 daily active players is in line with similarly sized indie MMOs several years after release.

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.