Hi guys, I had the same crash that some of you shared involving a wrong filename for 2 images and 1 audio file, and decided to fix it for myself. This isn't a complete fix, as audio file that is supposed to be playing is completely missing, but I replaced it with different one that would go mostly unnoticed and is already included in the game.
You just have to decompress the zip, and drop (and replace) the files in "DesertStalker-0.14c-pc\game\scripts"
Pixeldrain
Edit: Attaching .rpy files was a bad idea.