The modding community has fully decompiled Super Mario Galaxy, and a playable PC port is now actively in development. The project is called Astrocore, and the team behind it has one very deliberate thing to say upfront: every line of code was written by a human.
That distinction matters more than it might sound in 2026.
Why the "100% human-coded" badge is a bigger deal than it looks
Game decompilation has been one of the more exciting corners of PC gaming this decade. When a game gets fully decompiled, community developers can build a native PC port from the reconstructed source, which runs cleaner and allows for enhancements that simple emulation never could. It's how fans have brought titles like Castlevania: Symphony of the Night and Blue Dragon to PC without Nintendo or any other publisher lifting a finger.
Here's the thing: that scene has gotten messy. A wave of AI vibe-coded ports has eroded trust in fan projects recently. The Donkey Kong 64 recompilation effort had to publicly reject AI contributions and position itself against a competing port that used generated code. Mario Kart Wii's PC rebuild drew immediate skepticism for the same reason. Even RPCS3, the leading PS3 emulator, publicly asked contributors to stop submitting AI-generated pull requests. The community is exhausted by it.
So when Luma's Workshop, the modding group behind the Galaxy decompilation, announces that Astrocore is 100% human-coded, they're not just making a technical statement. They're planting a flag.
From decompilation to Astrocore: how it happened
Luma's Workshop posted a video titled "the next step..." announcing that Super Mario Galaxy was nearly fully decompiled. Six hours after that post went live, a follow-up comment confirmed the 100% mark had been hit. The port was shown running, and the team stated they "anticipate a release soon," directing interested followers to their Discord for updates.
The speed of that final stretch is worth noting. Decompilation projects can stall for months on stubborn code segments, so crossing the finish line within hours of the announcement signals the team had been closing in for a while before going public.
The port builds on years of work from the broader Galaxy modding community. Luma's Workshop has been the central hub for Galaxy modifications, and the decompilation effort represents the deepest technical engagement the game's fanbase has ever pulled off.
What comes after Galaxy
The team confirmed the decompilation work will continue directly into Super Mario Galaxy 2. Once some cleanup on the first game wraps up, the same group plans to move on to the sequel. That means a PC port of Galaxy 2 is a realistic prospect down the line, not just wishful thinking.
For players who grew up on the Wii originals, this is the access point that never existed. Nintendo has kept both Galaxy games largely locked to their original hardware and the Super Mario 3D All-Stars collection, which itself had a limited release window. A native PC port changes that entirely, with the potential for widescreen support, higher framerates, and mod support baked in from the start.
What most players miss when these projects get announced is that the decompilation itself is the hard part. The port that follows is still significant work, but the community now has a clean, fully reconstructed codebase to build from. Astrocore is further along than most fan ports at the point of their announcement.
Keep an eye on the Luma's Workshop Discord for Astrocore updates. For everything else Galaxy-related, the Super Mario Galaxy strategy guides and broader gaming guides collections are worth bookmarking while you wait for the port to drop.
