The original game doesn’t support mods natively. You must use HedgemodManager (not the old SonicGLVL or other deprecated tools). Make sure you’re on the latest version.
If you get a "Configuration Error," go to the game folder and delete all .cfg files, then run the Configuration Tool again to reset your display settings. 5. Adjust Mod Load Order sonic generations mods not working
Dealing with Sonic Generations mods not working can be frustrating, especially since the game’s modding landscape changed with the release of Sonic X Shadow Generations The original game doesn’t support mods natively
Many gameplay or visual mods require SonicGMI (Generations Mod Injector) or CodeLoader . Read the mod’s description carefully. If it says “requires CodeLoader” and you don’t have it, the mod will silently fail. If you get a "Configuration Error," go to
If vanilla Generations runs fine but mods break it, right-click the game in Steam → Properties → Installed Files → Verify integrity of game files. This fixes missing DLLs or corrupted archives.