File: Foundation.v1.9.1.3.0112.zip ... Apr 2026

: Use a tool like 7-Zip or WinRAR to open the archive.

: Find your main game directory. For Steam users, this is typically: C:\Program Files (x86)\Steam\steamapps\common\Foundation File: Foundation.v1.9.1.3.0112.zip ...

Ensure you didn't accidentally extract the files into a subfolder (e.g., Foundation/Foundation.v1.9.1.3.../ ). : Use a tool like 7-Zip or WinRAR to open the archive

Once installed, check the bottom-right corner of the main menu. It should reflect the version . If it still shows an older version: Foundation/Foundation.v1.9.1.3.../ ). Once installed

: Versions within the 1.9.x branch are generally compatible with one another, but moving from 1.8 to 1.9 may break older save files.

: This is often caused by an incompatible resolution setting in the user_settings.config file found in %AppData%\..\LocalLow\Polymorph Games\Foundation\ .