: As with any indie executable, your Windows Defender or antivirus might flag it as "Unknown." If you trust the source (such as the developer's official Patreon or itch.io page), you can bypass this by clicking "More Info" and "Run Anyway." Safety Tips for Indie Game Demos
If you encounter an "Invalid Zip" error, it may be due to a corrupted download . Try downloading the file again from its original source. : File: GuiltyHell2_Demo_part9e_2204.zip ...
Check your disk space; according to Smallpdf , you should ideally have at least available in free space to extract it successfully. Extraction : : As with any indie executable, your Windows