Super Mario 64 The Missing Stars is the first official major ROM hack of Super Mario 64 ever created. It was initially released in April 2009. Main Features: - 38 stars in about 10 levels - A Day/night cycle replacing (most) act selectors - Choose to play as Mario or Luigi - Modified enemies, objects and bosses (too many to list!) - Custom music, including one original song (the town "night" music). - A new final boss fight
Super Mario Star Road is a rom hack of Super Mario 64 and can be considered a sequel to that very game. It contains over 120 stars, more than 30 new areas, nearly 50 new tunes, and many other new features.
Super Mario Bros. 64 is a ROM hack/mod of Super Mario 64 that recreates the whole Super Mario Bros. (NES/Famicom) game to the Super Mario 64 engine, plus adding new playable characters (Mario, Luigi, Waluigi and Wario are playable).
SM64: Last Impact is a major ROM hack of Super Mario 64 by Kaze Emanuar with new assets like enemies, power-ups, stages and music.
Mario gets invited to explore a haunted manor in this unconventionally-structured major hack. Solve puzzles, collect keys, and fight enemies to uncover the mystery of the manor.
Kaizo Mario World, also known as Asshole Mario, is a hack created by T. Takemoto for his friend R. Kiba. It features extremely sadistic, unique and groundbreaking level design. This is also the hack that started it all, since the kaizo genre wasn't existent beforehand. The literal translation of "Kaizo Mario World" is "自作の改造マリオ（スーパーマリオワールド）を友人にプレイさせる", or in plain English, "Making my friend play through my Mario hack (Super Mario World)". Kaizo is a rough translation of the word "modify" or "change" in Japanese. However, due to this Hack, Kaizo has now become a catch-all term for extreme and possibly "unfair" difficulty hacks.
Platform / Adventure / Action / Open world
Mario's Vacation Course 64 is a ROM hack/mod of Super Mario 64 developed by Reonu. In this game, Mario spent so much time on vacation that he forgot all of his moves, and the player has to recover his memories, on a open-world-like playground where the player has to find and get stars. This mod is inspired by Bowser's Fury (Switch) in its style, music and level design.
Super Mario Odyssey 64 is a hack for Super Mario 64 (Nintendo 64) which brings new stages, enemies and mechanics based on Super Mario Odyssey for Nintendo Switch. You can platform using new moves for Mario and use Mario's new cap, Cappy, to use your enemies' abilities to overcome the challenges.
Super Donkey Kong 64 is a rom-hack made by Kaze Emanuar, which was released in April 2016. The hack is a re-creation of Donkey Kong 64 using the Super Mario 64 engine. It features eight levels from DK64, and several new power-ups. There is only one overworld, DK Isle, which is an island in the shape of a giant DK head.