Hearts of Iron IV

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HoI4 icon.png Hearts of Iron IV

Banner HoI4.jpg

Release date / Patch
2016-06-06 / 1.0

Store: Base Game
"Grand Ambitions": Johan Andersson, Dan Lind, Mats Virtanen, and Jakob Munthe discuss the design and ambitions of the fourth installment of the Hearts of Iron series.

Hearts of Iron IV (or HOI4) is a grand strategy game by Paradox Interactive and the sequel to Hearts of Iron III. It covers the time period from 1936 to 1948, focusing on the build up to the Second World War and the war itself.

Hearts of Iron IV was announced on the Paradox Forums on the 23rd of January 2014. It was released on D-Day 2016 (2016-06-06)[1].

General information[edit | edit source]

Announced features[edit | edit source]

  • Total strategic war
The war is not only won on land, on the seas and in the air, but also in the laboratories, the factories, the backrooms, in international trade and in the hearts and minds of men and women.
  • The most authentic real-time simulation of the war
Let the greatest commanders of WW2 fight your war with the tools of the time; tanks, planes, ships, guns and newly discovered weapons of mass destruction.
  • Fight as any nation in the greatest human conflict of all time
Choose from the greatest powers striving for victory, or the small nations trying to weather the storm.

Development team[edit | edit source]

The game is being developed by a core team of six, augmented by drop-in support from the rest of Paradox Development Studios.

Expansions[edit | edit source]

System Requirements[edit | edit source]

Minimum[edit | edit source]

  • Operating System: Windows 7 (32-bit) / 8/10 (latest service pack) with DirectX 9.0c/ Ubuntu 14.04 LTS x32 / Mac OS X 10.10 or better.
  • Processor: AMD Athlon II X4 640 3.0 GHz or Intel Core 2 Quad 9400 with 2.66 Ghz
  • Memory: 2 GB RAM
  • Graphics: AMD HD 5770 or NVIDIA GTX 460 with 1024MB VRAM or better
  • Hard Drive Space: 4 GB free Hard Drive Space: 4 GB free
  • Internet connection required for multiplayer mode
  • Steam registration / account required to be an Internet connection is required.

Recommended[edit | edit source]

  • Operating System: Windows 7 (64-bit) / 8/10 (latest service pack) with DirectX 9.0c
  • Processor: AMD Phenom II X4 850 with 3.3 Ghz or Intel i3 2100 3.1 GHz
  • Graphics: AMD HD 6850 or Nvidia GTX 560Ti with 1024MB VRAM or better
  • Memory: 4 GB RAM
  • Internet connection required for multiplayer mode
  • Steam registration / account required to be an Internet connection is required.

Dev diaries[edit | edit source]

Main article: Developer diaries

All developer diaries about Hearts of Iron IV (base game), Patch 1.0, Patch 1.1 (aka Red Ball Express), and Patch 1.2 (aka Sunflower)

Patch 1.2 (Sunflower)
No. Title and Link Description Date
69 Sunflower is Live Patch 1.2 is out live, next patch is 1.3 aka "Torch" 2016-09-16
68 Bugs and Stats Readying Sunflower for release and sharing some gameplay stats 2016-09-09
67 Sunflower Improvements Sunflower updates: GUI improvements, naval balance, focus trees 2016-09-02
66 New Releasable Nations A look at new releaseable nations and more of the AI improvements coming in Sunflower (patch 1.2) 2016-08-26
65 Sunflower (patch 1.2) Port Strikes and AI improvements to upgrading templates and naval missions coming in Sunflower 2016-08-19
64 Custom Difficulty Settings AI improvements and implantation of custom difficulty settings at game setup 2016-08-12
63 Back from Vacation AI changes and MP hotjoin in 1.2, aka 'Sunflower' 2016-08-05
Patch 1.1 (Red Ball Express)
No. Title and Link Description Date
62 Summer Vacation The team is going on a well deserved summer vacation 2016-07-01
61 Red Ball Express Tweaks to access to allied territory, peace conferences, invasions and naval bombers along with new battle plan modes upcoming in 'Red Ball Express' 2016-06-17
60 Release and Future Podcat shares his thoughts on the release, as well as discussing the near future patches 2016-06-10
Patch 1.0
No. Title and Link Description Date
59 D-day A short, final message from Podcat before we release 2016-06-03
58 Tutorial, Wiki & Browser A look at the tools we provide to help you learn how to play Hearts of Iron IV 2016-05-27
57 Poland: United and Ready About the free DLC shipped with all copies of Hearts of Iron IV 2016-05-20
56 Bits & Pieces Mopping up a bunch of smaller topics not covered in other Development Diaries 2016-05-13
55 QA A closer look into the QA process when developing Hearts of Iron IV 2016-05-06
54 AI SteelVolt speaks of the topic no one wants to touch, but everyone wants to know about 2016-04-29
53 2D art Sideburnout talks about the 2D graphics of Hearts of Iron IV 2016-04-22
52 Modding A look at the improved modding support in Hearts of Iron IV 2016-04-15
51 Sound & Music Music & Sound Design in Hearts of Iron IV 2016-04-08
50 Generic Focus Trees Generic Focus trees and DDR mat support 2016-04-01
49 Nukes! Atomic bomb - Research and requirements for production and use 2016-03-18
48 Naval Invasions How naval invasions work 2016-03-11
47 China Overview of China 2016-03-04
46 United Kingdom Overview of UK 2016-02-26
45 Battle Plans How battle plans work 2016-02-19
44 Occupation and Resistance Managing occupied territory 2016-02-12
43 Diplomacy and other options Diplomacy, Factions, War Goals, ... also: HOI4 is now in BETA 2016-02-05
42 Japan Overview of Japan 2016-01-29
41 Order of Command OOC and Commander traits 2016-01-22
40 Changes to the game Completely revised factory slots mechanic, World Tension.. 2016-01-15
39 The Radio Radios, reinforce chance and radar stations 2016-01-08
38 Submarines How submarines work 2015-12-18
37 Carrier Warfare How aircraft carriers work 2015-12-11
36 Helping out in other wars Helping out in other countries wars without directly getting involved 2015-12-04
35 Germany Overview of Germany 2015-11-27
34 Civil Wars Civil wars and coups 2015-11-20
33 Supply The supply system and supply areas 2015-11-13
32 The USA Overview of USA 2015-11-06
31 Peace Conferences Ending wars 2015-10-30
30 France Overview of France 2015-10-23
29 Factions & Wargoals How factions and wargoals function 2015-10-16
28 Weather & Terrain How weather and terrain function 2015-10-09
27 Italy Italy's situation in the game 2015-10-02
26 The Navy Naval doctrines and naval technology 2015-09-25
25 Laws and Politics How to manage government 2015-09-18
24 Trade and Resources Overview of international trading 2015-09-11
23 Industrial Capacity How factories function 2015-09-04
22 Support Companies List of support companies 2015-08-28
21 Land Combat Land combat mechanics 2015-08-21
20 Soviet Union and Communism Soviet Union and communism 2015-08-14
19 Equipment How equipment works 2015-07-03
18 Army Planner Creating and deploying units 2015-06-26
17 Johan Invades Germany Barely a dev diary 2015-06-12
16 World Tension World tension, war justifications 2015-05-08
15 On the high seas Naval battles 2015-04-11
14 National Focuses National focuses 2015-03-20
13 Conscription & Training Manpower, recruitment, training 2015-02-20
12 Internal Politics Internal affairs of a country 2015-01-16
11 Map & Graphics Visual aesthetics of the game 2014-11-07
10 Naval Combat Naval gameplay 2014-10-10
9 Vacation and Air tech Air technology tree 2014-09-12
8 Experience and Variants Production 2014-08-08
7 Air Combat Air war 2014-07-11
6 Division Design Division planner, division template 2014-06-13
5 Production Lines How things get built 2014-05-09
4 Land Doctrines Doctrine paths 2014-04-11
3 Bringing WWII to the mainstream Dogs! 2014-04-01
2 The Tools of War Equipment, production and research 2014-03-07
1 Our Vision Design goals 2014-02-07

References[edit | edit source]

  1. Twitter, D-day release, 2016-06-06