: Steam users can fix many issues by right-clicking Sonic Generations in their library, selecting Properties > Installed Files , and clicking Verify integrity of game files . This restores missing or corrupt core files that mods may have accidentally altered.
Most "not working" errors aren't actually caused by broken mod links. They are caused by using the . The old SonicGLVL tool is obsolete. If you are trying to manually drop files into the game directory (the "old school" way), the mod will fail 100% of the time because Generations uses a specific archive packing system (.CPK files). sonic generations mods not working link