The Sonic Mania decompilation project ( ManiaDecomp ) doesn't just copy the game—it rebuilds it from the ground up using the official assets, resulting in a native PC executable that is lighter, faster, and infinitely more flexible than the official version.

The official PC version runs well, but it includes layers of DRM (Steamworks/Epic Online Services) and engine overhead. The decomp build:

: The decomp unlocks internal code, enabling mods that overhaul physics, add new special stages, or even create entirely new games like Sonic Megamix Mania . Somehow, This Mod Makes Sonic Mania Even BETTER