WEBWeb/Flash · 2017 · multiplayer .io survival/base-building
MooMoo.io
MooMoo.io (Web/Flash, 2017) has an open-source reimplementation, Picoseconds/sanctuary.
Data checked 2026-10-12 · unbaked registry
Projects
ReimplementationTypeScript server20 starspushed 2024-02-27WTFPL license
A working (in 2021) MooMoo.io private server that is constantly getting updates!
Private server reimplementations of MooMoo.io (sanctuary, m.io)
What you need
Check each project for what game data it needs. Code here is linked, never game files.
More on Web/Flash
GameMethodYearStarsLast push
WEB2048Source releaseReimplementation+1201413k2026-08-19WEBBrowserQuestSource release20129.4k2023-07-14WEBA Dark RoomSource release20138.3k2025-05-23WEBshapezSource release20207.0k2026-09-07WEBPokémon ShowdownReimplementationNative port+120116.0k2026-10-12WEBUntrustedSource release20144.7k2025-05-31WEBFriday Night Funkin'Source releaseReadable bytecode20203.8k2026-10-11WEBOpenFront.ioSource releaseAgent environment20242.8k2026-10-12Found via wwwg/m.io
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.