YoWorld

VS

Roblox

YoWorld is a web-based social simulator originally released as YoVille in 2008. While it enjoyed peak popularity on Facebook in the late 2000s, it has since seen significant player count decline typical of older web-based social games. The game is still maintained and has a loyal niche community, but its active daily user base is much smaller now, likely in the low thousands.

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.