I have a problem with the Underworld DLC.

I bought the DLC today, but I am not able to use it.
I don't use Galaxy, I downloaded the DLC as offline-installer.
But it's just a tiny .pkg-file, merely 17.6 kb in size.

Dysmantle as such runs perfectly fine, and has done so for many months.

But how do I activate/install the Underworld DLC? It's obviously not a runnable installer.
I tried copying the .pkg-file to the game directory, but that does not change anything.

Any suggestions? Am I overlooking something?

If you need a Windows .exe switch to 'System: Windows' on the game card in your library.

That's of course exactly what I did, without success.

Obviously the .pkg-file from the Mac-Version ended up in the Windows version, probably by mistake.
At least until yesterday it was there.

Seems it is fixed now, since I now have the Windows installer .exe as it should be.

Good to hear!