: You cannot use "part1" alone. You must have all subsequent parts (part2, part3, etc.) in the same folder.
: Inside the extracted folder, there is usually a Setup.exe . Run it. Layers.of.Fear.2.Update.v1.2-CODEX.part1.rar
: Ensure all .rar parts are in one directory. : You cannot use "part1" alone
: During installation, ensure the "Installation Directory" matches the folder where your game is actually installed. Layers.of.Fear.2.Update.v1.2-CODEX.part1.rar
: Resolution for progression-blocking bugs where items wouldn't trigger correctly.
: Right-click Layers.of.Fear.2.Update.v1.2-CODEX.part1.rar and select "Extract Here" (using WinRAR or 7-Zip). It will automatically pull data from the other parts to create a single folder.
: Fixes for frame rate drops in certain cinematic sequences.