The in game menu doesnt allow above something like 1280x1024 res.

There SHOULD be an "E6Config.exe" in the games folder to allow you to sort that out.

For some reason its not there in the gog version.

However, you can open "Config.e6c" with notepad and set your resolution there.

Can't say if this will work for higher resolutions, nor how stable it will be even if it does work.

edit:

Theres no config file I can find No HD res either . I will see about mods

There are 3 zip files in the data folder with 1080p assetts I don't get this at all.I tried adding the assetts with no luck.

I found it. there is a file e6c open with notepad and you can set res. so you are right. it's not a exe so you have to set with open with.... notepad.

Just copy E6Config.exe from High Calibre to Hard Life folder & you can change settings with it.

The german files of High Calibre contain a E6Config.exe.
Seems as if they forgot to add it to the english version.

unless theres been a silent update since i downloaded maybe?!

edit: quoted you in the OP in any case. :)