[Update 2021-12-02] Thanks to sheepluva for a manual fix to our cert, 1.0.0 direct link should work again in Windows. However, the unit22 link will not, at least for now.
One of the interesting things about Windows is that almost all distribution is similar to the "Snap/Flatpak" model - instead of distros managing packaging and updating with a single library used by hundreds of apps, all libraries have to be included by the app, with hundreds of copies of the library instead. This lack of unified package management probably explains 20GB C:\Windows\Installer folders too.
It appears the version of OpenSSL in the 1.0.0 Hedgewars is no longer functioning with DLC. This could be due to: https://scotthelme.co.uk/lets-encrypt-old-root-expiration/
As a workaround pending a new release, Windows users can access the DLC page here (it's the exact same page that is shown in client):
https://hedgewars.org/content.html
You can then download the HWPs off that page and manually copy them to your Data folder which should be My Documents/Hedgewars/Data. The icon in the lower right on the DLC page should also open this folder and should still work.
