Uploaded August 2025 | Updated September 2026, 3 hours ago

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Download: youtu.be/tHXZeNf6sfw

After all of this time, Super Mario Galaxy 63 is finally released.

You read that right, this mod has been in development since 2020. That's roughly 5 entire years spent carefully crafting this love letter to not only the original Super Mario 63 Flash Game from 2009, but also to the Super Mario Galaxy Community.

This project is lead by Alex SMG with the help of myself and many of the talented minds from the Super Mario Galaxy Modding Community. This is a 3D reimagining of Super Mario 63. Featuring a Custom Hubworld, over 30 Galaxies to explore, 60 Shine Sprites and 120 Star Coins to find!

I'm super proud of everybody that's worked on this. Some of my greatest childhood memories were spent developing this mod and I'll treasure those forever. I hope this mod brings people some great memories too.

Super Mario Galaxy 63 uses the Galaxy Level Engine by Super Hackio and features Custom Code from Evanbowl, Lord Giganticus, Bavario and many others!

Trailer Music by Fer Viscaino:
youtu.be/cZ2o-8atr10

Alex SMG's Social Links:
youtube.com/@Alex-SMG
twitter.com/alexsmg3

#SuperMarioGalaxy #SuperMarioGalaxy2 #SuperMario63

Thanks for watching this Overview Trailer! :D