: Open your antivirus software (or Windows Security) and check the Protection History . If you see steam.hdll there, "Restore" it and add it to the exclusion list.

How to Fix "Failed to Load Library steamhdll" Error in Steam

Windows-based PCs running Steam client and Steamworks-integrated games.

The error indicates that the Steam client’s runtime environment or a specific game’s dependent library cannot be located, is corrupted, is blocked by security software, or has a version mismatch.

Under the dropdown, select public-beta or beta .

If the error persists after completing these steps, check the developer's public bug boards or community forums like the Northgard Bug Tracker to see if a dedicated game engine patch is currently in development.