Kuboom

VS

Roblox

Kuboom is a small-scale multiplayer FPS released in 2016 by indie publisher nobodyshot. Although not mainstream, it sustains a modest but active player base, especially within the niche shooter community, largely due to its lightweight design and easy accessibility. However, being over 7 years old, its player count is relatively low, as is typical for indie shooters after their peak years.

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.