Found another solution to the 1.2.1 launch crash. Just rename Steamworks_x64.dll. to Steamworks.dll, seems like in the hurry they forgot to rename it :)
Found workaround for crash that seems to work for now. replace steam related files (the crack) with files from old download if you still have it. I think they just made mistake when applying crack for update.
Then copy the "Steamworks.NET.dll" of the windows-x64 to the Apico folder. Go into "options.ini", and change "PreGraphicsInitFile=" to the name of the just copied .dll file.
Just rename Steamworks_x64.dll. to Steamworks.dll,
seems like in the hurry they forgot to rename it :)
Is there any additional requirements not listed in any ReadME etc. ?
I think they just made mistake when applying crack for update.
Download latest zip release from: https://github.com/rlabrecque/Steamworks.NET/releases
Then copy the "Steamworks.NET.dll" of the windows-x64 to the Apico folder. Go into "options.ini", and change "PreGraphicsInitFile=" to the name of the just copied .dll file.
So might just be a fluke, but let's hope there is a fix soon. :)