Division designer - Hearts of Iron 4 Wiki

Paradox offers free game or two DLCs after price hike kerfuffle

HOI4 Dev Diary - 4th Anniversary

I'm active in Paradox community. This forum post by the HoI4 director summarizes a problem I think we have in the WoW community as well. : r/wow

Hearts of Iron IV Review - The Greatest War

This is one reason why I love HOI4

The Hearts of Iron IV 2021 Community Cup

Next Hearts of Iron 4 update entirely overhauls Poland's focus tree

HOI4 Dev Diary - Bag of Tricks : the Sequel, Page 7

Steam Workshop::Winter Wars: A Scandinavian Expansion (Defunct)

Victoria 3 to Hearts of Iron IV converter - Hearts of Iron 4 Wiki