A Super Mario 64 mod may be as close as we ever get to Mario Maker 3D
Briefly

A pair of modders named Arthurtilly and Rovertronic have released an that aims to make it a cinch for players to create and share their own levels.
You'll have more than 100 parts to build your levels with, including custom parts from a previous mod, allowing for unique creations like permanent powerups.
Ridiculous 3D kaizo-style levels may start appearing with this mod, enabling speedrunners to create custom training grounds for strategy practice.
Creators can utilize the mod to potentially build levels focused on unique challenges like requiring half-A presses to complete.
Read at Engadget
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