Multiplayer Everything

Download the launcher

One Windows app for playing with friends: Flash games online with a room code, and co-op mods installed into PC games you own.

Free, for Windows 10 and 11. It keeps itself up to date and asks before it installs anything.

What it does

It needs Windows 10 or 11. It does not include any game: every game needs your own copy, or a file from the catalog of free Flash games.

Signed and open source

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The source code is on GitHub, and each release lists the SHA-256 of its files.