Hearts of Iron IV

Hearts of Iron
Hearts of Iron	2002
Hearts of Iron II	2005
Hearts of Iron III	2009
Arsenal of Democracy: A Hearts of Iron Game	2010
Darkest Hour: A Hearts of Iron Game	2011
Hearts of Iron IV	2016

General information

Official website

Official forum

Steam Community Discussions

Hearts of Iron IV Wiki

Availability[edit]

Source	DRM	Notes	Keys	OS
Retail
Publisher website		Cadet Edition, Colonel Edition or Field Marshal Edition.
Gamesplanet		Colonel Edition
Green Man Gaming		Cadet Edition, Colonel Edition or Field Marshal Edition.
Humble Store		Cadet Edition, Colonel Edition or Field Marshal Edition.
Microsoft Store		Xbox Game Pass for PC: Cadet Edition
Steam		Cadet Edition, Colonel Edition or Field Marshal Edition.

All versions require Steam DRM.

Game data[edit]

Configuration file(s) location[edit]

System	Location
Windows	%USERPROFILE%\Documents\Paradox Interactive\Hearts of Iron IV\
macOS (OS X)	~/Paradox Interactive/Hearts of Iron IV/
Linux	$XDG_DATA_HOME/Paradox Interactive/Hearts of Iron IV/

This game follows the XDG Base Directory Specification on Linux.

Save game data location[edit]

System	Location
Windows	%USERPROFILE%\Documents\Paradox Interactive\Hearts of Iron IV\
macOS (OS X)	~/Paradox Interactive/Hearts of Iron IV/
Linux	$XDG_DATA_HOME/Paradox Interactive/Hearts of Iron IV/

Save game cloud syncing[edit]

System	Native	Notes
Steam Cloud
Xbox Cloud

Video settings[edit]

Video settings.

Graphics feature	State	Notes
Widescreen resolution
Multi-monitor
Ultra-widescreen		^[1]
4K Ultra HD		UI does not scale with resolution and is extremely small in 4K. However game have experimental (with some issues) option of UI scaling.
Field of view (FOV)
Windowed
Borderless fullscreen windowed
Anisotropic filtering (AF)
Anti-aliasing (AA)		MSAA. Controlled by "Multisample Level".
Vertical sync (Vsync)
60 FPS and 120+ FPS
High dynamic range display (HDR)
Color blind mode		Use Colourblindness Mod

Input settings[edit]

Input settings.

Keyboard and mouse	State	Notes
Remapping		Only possible through modding
Mouse acceleration
Mouse sensitivity
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support		Only in Debug Mode to activate Cinematic Mode

Audio settings[edit]

Audio settings.

Audio feature	State	Notes
Separate volume controls		Effects, music and ambient.
Surround sound
Subtitles
Closed captions
Mute on focus lost

Localizations

Language	UI	Audio	Sub	Notes
English
French
German
Polish
Brazilian Portuguese
Russian

Network[edit]

Multiplayer types

Type	Players	Notes
Local play
LAN play	32	Versus, Co-op
Online play	32	Versus, Co-op

Connection types

Type	Native	Notes
Matchmaking
Peer-to-peer
Dedicated
Self-hosting
Direct IP

Issues unresolved[edit]

Wayland incompatibility[edit]

As of September 30, the game isn't compatible with Wayland.^[2]^[3] To get it working with Wayland, you must bypass the launcher and disable MSAA as a workaround. To bypass the launcher, add "-nolauncher" as a Steam launch option. To disable MSAA, go to ~/.local/share/Paradox Interactive/Hearts of Iron IV/ and set the value for "multi_sampling" to 0 in the "settings.txt" file. Please note that if this workaround is implemented, you may also need to manually set the screen resolution in the "settings.txt" file as well.

Other information[edit]

API[edit]

Technical specs	Supported	Notes
Direct3D	9
Shader Model support	3.0

Executable	32-bit	64-bit	Notes
Windows
macOS (OS X)
Linux

System requirements[edit]

Windows
	Minimum	Recommended
Operating system (OS)	7 (64 bit)	8, 8.1, 10 (64 bit)
Processor (CPU)	AMD Athlon II X4 650 3.2 GHz Intel Core 2 Quad 9400 2.66 GHz	AMD Phenom II X4 955 3.2 GHz Intel Core i5 750 2.66 GHz
System memory (RAM)	4 GB
Hard disk drive (HDD)	2 GB
Video card (GPU)	ATI Radeon HD 5850 Nvidia GeForce GTX 470 1 GB of VRAM DirectX 9.0c compatible	ATI Radeon HD 6950 Nvidia GeForce GTX 570 2 GB of VRAM
Sound (audio device)	DirectX 9.0c compatible

Laptop GPU dedicated cards may work if they are on par with their desktop counterparts, but are not officially supported.^[4]

macOS (OS X)
	Minimum	Recommended
Operating system (OS)	10.10	10.11
Processor (CPU)	Intel Core i5 2.6 GHz	Intel Core i5 2.9 GHz
System memory (RAM)	4 GB	8 GB
Hard disk drive (HDD)	2 GB
Video card (GPU)	ATI Radeon HD 6970M	AMD Radeon R9 390M Nvidia GeForce GTX 750M 1 GB of VRAM

Laptop GPU dedicated cards may work if they are on par with their desktop counterparts, but are not officially supported.^[5]

Linux
	Minimum	Recommended
Operating system (OS)	Ubuntu 14.04 (32 bit)	Ubuntu 14.04 (64 bit)
Processor (CPU)	AMD Athlon II X4 650 3.2 GHz Intel Core 2 Quad 9400 2.66 GHz	AMD Phenom II X4 955 3.2 GHz Intel Core i5 750 2.66 GHz
System memory (RAM)	4 GB
Hard disk drive (HDD)	2 GB
Video card (GPU)	ATI Radeon HD 5850 Nvidia GeForce GTX 470 1 GB of VRAM	ATI Radeon HD 6950 Nvidia GeForce GTX 570 2 GB of VRAM

Laptop GPU dedicated cards may work if they are on par with their desktop counterparts, but are not officially supported.^[6]

References

[1] Steam Community :: Group :: /r/ultrawidemasterrace Group

[2] "Hearts of Iron IV won't launch on Linux (Fedora Linux), game version: 1.4.2". https://forum.paradoxplaza.com/forum/index.php?threads/hearts-of-iron-iv-wont-launch-on-linux-fedora-linux-game-version-1-4-2.1044312/. "The game won't run on Wayland, please try it under Xorg."

[3] "Can't launch Hearts of Iron IV on Linux (Fedora Linux), details (logs) inside". https://www.reddit.com/r/linux_gaming/comments/70ks3t/3_cant_launch_hearts_of_iron_iv_on_linux_fedora/.

[4] ttps://www.paradoxplaza.com/hearts-of-iron-iv

[5] ttps://www.paradoxplaza.com/hearts-of-iron-iv

[6] ttps://www.paradoxplaza.com/hearts-of-iron-iv

[1]

[2]

[3]

[4]

[5]

[6]

Developers

	Paradox Development Studio
Publishers
	Paradox Interactive
Engines
	Clausewitz
Release dates
Windows	June 6, 2016
macOS (OS X)	June 6, 2016
Linux	June 6, 2016