About this game
Hearts of Iron IV is the sequel to Paradox Development Studio's game Hearts of Iron 3. It covers the time period from 1936 to 1948, focusing on the buildup to the Second World War and the war itself. This Hearts of Iron 4 Wiki is intended as a repository of Hearts of Iron 4 related knowledge, useful for both new and experienced players as well as for modders.
Want to help improve the wiki?
Anyone can contribute to the wiki. If you want to become a contributor please register (though you can also edit anonymously), and check out the work needed page. If you spot anything in need of improvement, don't hesitate to make an edit. If you plan on making any major changes it is recommended you read the style guidelines first. To help with the translations see the information on the translations page.
- Game history
- 2019-02-28 - Man the Guns to be released (alongside patch 1.6)
- 2018-06-27 - Patch 1.5.4 released
- 2018-03-08 - Patch 1.5 released (alongside Waking the Tiger)
- 2017-06-14 - Patch 1.4 released (alongside Death or Dishonor)
- 2016-12-15 - Patch 1.3 released (alongside Together for Victory)
- 2016-09-16 - Patch 1.2 released
- 2016-06-30 - Patch 1.1 released
- 2016-06-06 - Hearts of Iron IV released
- Video Diaries
- 2018-05-20 - PDXCon 2018 - News from the Front
- 2018-02-09 - Hearts of Iron IV - Patch 1.5 "Cornflakes"
- 2018-02-07 - Waking the Tiger #3 - Chain of Command
- 2016-05-30 - Hearts of Iron IV - Beginner tutorials
- Developer Diaries
- 2019-02-13 - Dev diary #30 - AI Plans posted
- 2019-02-06 - Dev diary #29 - Achievements posted
- 2019-01-30 - Dev diary #28 - The Imperial Japanese Navy (AAR) posted
- 2019-01-23 - Dev diary #27 - Art and Music posted
- 2019-01-16 - Dev diary #26 - Tech Changes posted
- 2019-01-09 - Dev diary #25 - Fuel Review and Motorized Artillery posted
- 2018-12-12 - Dev diary #24 - Subs and Convoy Raiding posted
- 2018-12-06 - Dev diary #23 - New Naval Combat posted
- 2018-11-28 - Dev diary #22 - Bag of Tricks #3 posted
- 2018-11-21 - Dev diary #21 - Naval Rework #1 posted
- 2018-11-14 - Dev diary #20 - Naval Treaties and Ship Refits posted
- 2018-11-07 - Dev diary #19 - Ship Designer posted
- 2018-10-31 - Dev diary #18 - Bag of Tricks #2 posted