I can't install the DRM free version of Wolfenstein: The New Order because certain parts (like part 9 and 12) will download other parts instead. This is the first time I've really tried to do this, is it always so broken?

I've just checked and everything seems fine. I downloaded via the website (not Galaxy) and although the numbering is odd - for example Part 2 of 12 downloads as ...1.bin suffix - they are all correct and all download okay.

Double check you have all the .bin files (which are numbered 1 to 11) and then run the set up file. Hope this helps.

thats usual numbering for GOG installer. Part 1 is exe itself mean no have number, like Part0. Although i think i saw variations when bins named differently... Only one bin per one one exe sometimes has -2.bin name. Sometimes. Maybe... Usually Part 12 is -11.bin.

I guess GOG Galaxy can validate downloaded parts and redownload wht is needed. If it is set to use the same download folder. Right?