Serious_sam_4_v1.09-razor1911.part05.rar -

If you are getting a "Checksum error" or "Missing volume" specifically for part 05: Part 05 specifically might be corrupted.

You must have all parts ( part01.rar through the final part) in the same folder. Right-click part01.rar and select "Extract Here." WinRAR or 7-Zip will automatically pull data from all parts, including part05.rar . Serious_Sam_4_v1.09-Razor1911.part05.rar

This file appears to be a (part 5 of a multi-part RAR set) for the Razor1911 release of Serious Sam 4 version 1.09. If you are getting a "Checksum error" or