This is a closed beta. You need an authorized key to unlock the full build. Unsigned builds will not connect to the test servers.
The legitimate way to access the Mario Multiverse (MMV) closed beta is through its official community channels: mario multiverse closed beta download
The developers of Mario Multiverse utilize a strict, server-side authentication system for their closed beta testing. Even if you manage to find and download the raw game files or an executable launcher from an unofficial mirror, you will not be able to play it. Upon booting the game, it requires a valid, approved tester account login to connect to the master servers. Without this access, the software will simply lock you out at the title screen. 2. Beware of Malware and Scams This is a closed beta
: Includes a "Demo Stage World," the ability to import custom game styles, and a Theme Maker. The legitimate way to access the Mario Multiverse
While you wait for the official closed beta to open up, here are a couple of safe alternatives:
: The only legitimate way to obtain the demo is through the Mario Multiverse Public Discord. 3. Warning: Avoid Leaked Downloads