Hearts of Iron IV

Hearts of Iron IV

3,719 ratings
Old World Blues
File Size
625.649 MB
Feb 16 @ 6:09pm
Jun 27 @ 11:51pm
30 Change Notes ( view )

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Old World Blues

War, war never changes.

Current version: Alpha
Compatible with: Version 1.5.4
Supported languages:
Discord Links:
OWB Public Server[discord.gg]
Paradox Modding Community[discord.gg]
Recommended setup:
  • All other mods off EXCEPT OWB and its companion music mod/any submods
  • UI scale of 1.0 (default).
  • Resolution of 1920x1080
  • NATO counters: off
Known Errors:
If your game is crashing with the “Jenkins error” all you need to do is reinstall the mod. Any other issues need to be brought to us in our discord.
Important Information:
Please be aware that all submods now require the use of the new dependency function added by 1.5.2 to function. If you don’t include this in your .mod file it will not work.
Other Links

Incompatible with almost everything but simple GFX mods and OWB submods.

Old World Blues is a total overhaul for Hearts of Iron IV: starting in the year 2275 and set in the Fallout universe. Experience the postapocalypse like never before with a dynamic war system that ensures that the AI nations act on their own, respond to aggression, and strike when their opponents are weak. Twelve national focus trees—three of which are generic—keep the game exciting as numerous powers contest in a battle to control the west coast. “Historical Focuses” are placed at the start of every focus tree to allow you to explore alt history with majors and minors, and to let you choose the direction of generic nations. Old World Blues is the definitive Fallout experience, a total overhaul that uses its expansive list of changes to make HOI4 a truly new and unforgettable experience. Welcome to the wasteland.

In alpha 1.0 the entire west coast is fully playable, containing the following features:
  • An all new custom map of North and Central America
  • 9077 provinces
  • 735 states
  • 94 nations
  • 344,721 lines of code
  • Realistic mountain ranges represented as impassable terrain
  • Rivers across the USA made of sea tiles, allowing you to sail down them and naval invade with them!
  • 13 new unit types
  • Custom voice files for factions
  • Custom unit textures for numerous nations
  • 3D models for numerous Fallout robots
  • 3D power armour unit
  • 269 custom focus icons
  • 90 new national spirit icons
  • Hundreds of events depicting events from Fallout
  • 9 unique focus trees centred around important Fallout factions
  • 3 generic focus trees representing different groups in Fallout: raiders, tribals, and settlers
  • 4 new ideologies representing the nature of groups found in Fallout: Elites, Intellectuals, Ruler, and People.
  • Custom artwork for all leaders and generals
  • An all new technology system that allows a player to take advantage of the ups and downs of Fallout technology.
  • Resource buildings that allow players to create small amounts of basic resources they need.
  • Every music track from Fallout bundled with a custom music player.

Nations with focus trees: New California Republic, Caesar’s Legion, Western Brotherhood, New Vegas, New Reno, Vault City, Desert Rangers, Troll Warren, New Canaan + 3 generics

Old World Blues has truly been a journey to create. It’s taken a year and three months to arrive at alpha 1.0, and the OWB team would definitely say it’s been worth the wait. OWB is a truly unique experience that we are sure you, the community, will greatly enjoy. As avid fans of Fallout we take great pride in the work presented to you, and hope that you have as much fun playing version 1.0 as we did making it!

Please report any bugs you discover to our “bug reports” channel in our public discord server! (Link can be found above)

Regards, the OWB team: Zapdude, Mechano, Loonybinjin, AntoniusMagnus, CelsiuZ, ICodeMaster, Chacolah, David Cameron, Magdaleno, Mason Holden, ViggoAvatar, Indyclone77, Dusty Windwards, Jozef, horeS, Garnithor, lascupa0788, HappyNTH, MrBlazzar, ZeroScale, DomiusCrisis, Axelius, HK33, evil_c0okie, dskod1, Zusk

Art credits:
  • Straidy[straidy.deviantart.com]: Leader portraits and event pictures
  • TakeOFFFly[takeofffly.deviantart.com]: event pictures
  • fenandOfc[fernand0fc.deviantart.com]: leader portraits
  • Skizoh: leader portraits
  • Josh Jertberg and Andrée Wallin: leader portraits
  • Iyad Sabouni: menu art for 1.0

Popular Discussions View All (258)
7 hours ago
Game Freezes and Crashes after a while of playing as Enclave
Jul 14 @ 5:03pm
Jul 14 @ 5:03pm
Known Bugs
Sgt Cat
< >
David Cameron  [author] 1 hour ago 
It would be nice if you could elaborate on the issues you've encountered
54e_TNTDragon11 4 hours ago 
So, because you can't play the mod, you complain. Alright
FrootieBootie 4 hours ago 
This mod is literally unplayable. The A.I are so fucking broken. NCR is unbeatable. Good luck trying to have fun if you play anything but NCR or CL.
Gen. Wilhelm Keitel 9 hours ago 
Someone please add a Hinterlands focus tree, I'd love to see Deutsch-Mittelamerika.
ch3micaLM3th0d 14 hours ago 
Great mod but all the little unpassable reagions are a pain in the ass. Had a big fight as Kanaan vs New Republik. As soon as a unpassable region gets hit the frontline breaks and theres a little gab. The Enemy has very much mobile Inf and if you dont look 1 sec they will drive to your Cities.
Its quite frustrating. This happens not often in vanilla. Its just too much micromanagment.
David Cameron  [author] 14 hours ago 
We will release it as soon as it's done
President Kim Jong-un 14 hours ago 
Can you say how long until 1.1?
David Cameron  [author] 14 hours ago 
Good to know
Big Fudge 15 hours ago 
we need east coast
ZeroSpacedude Jul 14 @ 11:51pm 
East coast next maybe?