Concise checklist for players (one-page)
If your progress is missing, check the Steam Cloud Storage page to manually download previous versions of your save files.
The DRM-free GOG version bypasses storefront cloud routing and saves directly to your document directory:
If you are playing on Steam, Steam Cloud is usually enabled by default.
From a technical standpoint, managing these saves can be a hurdle for the "completionist" gamer. On PC, saves are typically tucked away in the Documents/4A Games/Metro Last Light/
Locate your original save directory ( Documents\4A Games\Metro LL\[User ID]\ ).
Always copy your existing 4A Games folder to your desktop before making changes.