Since "Mario Multiverse" usually refers to the fan-made project by NeoSuperMario (often confused with or compared to Super Mario Maker ), this review focuses on that specific PC title.

Unlike Super Mario Maker , which is curated and sterile, Mario Multiverse is wild. The game allows for crossovers that Nintendo would never officially sanction. You aren't just limited to Mario; you can play as characters from Mega Man , Castlevania , Metroid , and more. Seeing how these different physics engines interact within a Mario level is a delight.

Get ready to experience the Mushroom Kingdom like never before! The highly anticipated Mario Multiverse game has just released a public demo, and you can download it now!

Users who claim to have run the "Public Demo" describe a short proof-of-concept build (usually around 150–300 MB). Features include:

Note on the "Public Demo" specifically: Because this is a fan project, finding a safe download link can be difficult. It is often hosted on forums or third-party file lockers. It is not a "click and play" experience like a Steam game; you often have to deal with setup files that might trigger antivirus warnings (usually false positives, but requires caution).

: Navigate to the #demo-release channel.

A legitimate, small-scale fangame demo likely does exist. Passionate coders often release "vertical slice" demos on platforms like Itch.io to show off their engine work.

Note: Distributing or downloading unofficial "leaks" can lead to a permanent ban from future official releases and beta-testing opportunities.

: Users have already showcased complex designs, including 2D recreations of Whomps and custom assets for "Green Hill Zone" style levels.