Roblox

VS

Second Life

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.

Second Life is a long-running sandbox virtual world released in 2003 by Linden Research. Its mainstream popularity peaked in the late 2000s, but it retains a loyal user base thanks to its unique user-created content and social interaction. It is still supported and receives regular updates, but its daily player base is much smaller than during its peak years. Current estimates place its daily active users in the tens of thousands.