If the game isn't saving, you might need to check the save file path, which is typically located in your Steam library folder or a specific CODEX appdata folder.
In the context of PC gaming, "CODEX" is a well-known group that provides "cracked" versions of games, allowing them to be played without digital rights management (DRM) like Steam or Denuvo. Key Details about Sonic Lost World (PC) sonic-lost-world-codex
The PC port was released on Steam in November 2015. If the game isn't saving, you might need