Shroom Valley

New Super Mario Land is a recreation of Super Mario Land (Game Boy) using New Super Mario Bros. (Nintendo DS) assets and released for the SNES, with pseudo-3D graphics and a new co-op multiplayer mode.

This is a complete hack of Super Mario World. Don't expect any new graphics here; this game is all about the level design. All the levels and worlds are new, and some of the worlds have themes not present in the original game, such as a water world and an ice world.

Released in 2022 on PlayStation, by Mauk 696.

Mario's New Earth is a ROM hack/mod of Super Mario 64 created by PixelSM64, with 125 Stars.

A rom hack with just 1 level made for SMW Central's Chocolate Level Design 2010 contest.

Super Mario Odyssey DS is an unofficial fan project, a mod of Super Mario 64 DS that reimagines Super Mario Odyssey for the Nintendo DS.

Sonic 1: South Island Definitive is a hack by RadiantNexus Team, which seeks to reimagine Sonic 1 by rearranging levels. remixing music, adding features from future games, and readding scrapped ideas in new and interesting ways. Major features: 3 acts of reimagined level design, including one act that has yet to be fully reimagined in any other hack. A miniboss. Massive art overhaul all over the place. Music made by ProjectFM and MechaKnuckles. Menus! A custom splash screen. There's been massive engine overhauls as well, including the Sonic 3 level layout format for massive levels, and the Sonic 3 object manager to go alongside this.

Sonic: Christmas Trouble is a festive, high-quality ROM hack of the original Sonic the Hedgehog for the Sega Genesis. First released for the Sonic Hacking Contest 2017, the project is a complete seasonal overhaul that replaces the standard levels with winter-themed environments.