Hearts of Iron IV

Hearts of Iron IV

4,274 ratings
Old World Blues
File Size
507.828 MB
Feb 16 @ 6:09pm
Oct 7 @ 5:08pm
46 Change Notes ( view )

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Old World Blues

War, war never changes.

Current version: Alpha 1.1.14
Compatible with: Version 1.5.4
Supported languages:
Important Links:
OWB Public Server[discord.gg]
OWB Twitter
PDX Modding Network[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 1.1 the entire west coast is fully playable, containing the following features:
  • An all new custom map of North and Central America
  • 9639 provinces
  • 791 states
  • 125 nations
  • 444,862 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
  • 450 custom focus icons
  • 252 new idea icons
  • Hundreds of events fitting the Fallout theme
  • 13 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.
  • An extensive and incredibly talented submodding community
  • A unique scavenging system that immerses the player in the Fallout world
  • Savage raiding mechanics for the mightiest raiders on the west coast, the Broken Coast

Nations with focus trees: New California Republic, Caesar’s Legion, Western Brotherhood, Washington Brotherhood, Mojave Chapter, Broken Coast, New Vegas, New Reno, Vault City, Desert Rangers, Troll Warren, New Canaan, Heaven’s Gate + 3 generics

After a stunning entry onto the modding scene in February, our team has expanded dramatically. With the help of our new team members we’ve been able to create a truly fantastic update for our community, well worth the 100 days wait it took to make and polish. Over 2500 files were changed with this update. As ever, OWB is a unique and challenging experience unlike any other HOI4 mod, and Update 1.1 highlights this even more so. We thank you all for your continued support, and hope you enjoy playing 1.1 as much as we enjoyed 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, Axelius, HK33, evil_c0okie, dskod1, Zusk, David M

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
  • SgtDelta[sgtdelta.deviantart.com]: Event pictures
  • 5ofnovember[5ofnovember.deviantart.com]: Event pictures
  • Marko-Djurdjevic[marko-djurdjevic.deviantart.com]: Leader portraits
  • Beardedwonder95[www.nexusmods.com] : Screenshots for event pictures

Popular Discussions View All (317)
Oct 5 @ 5:10am
Troll Warren bug?
Oct 5 @ 10:56am
AI Factions has they are aren't helping the game
Oct 10 @ 7:20pm
Manpower should'nt be required for robots but it should cost an insane amount of production !
< >
Mussolini's Face 1 hour ago 
Probably my favourite HoI IV mod out there. I can't wait to see what they add in next.
54e_TNTDragon11 12 hours ago 
@Stalin In some way or form, yes.
will west virginia be added?
54e_TNTDragon11 Oct 18 @ 11:47am 
@AC40 If you want a Chinese Translation, you will most likely have to A. Make it yourself or B. Wait for someone to make it for you. The devs aren't going to take valuable time out of their work and stop everything to make a chinese translation. In fact, there's already two members of the OWB community making one, so just be patient and wait.
Galen Wrathweld Oct 18 @ 3:48am 
When i was playing as the western brotherhood of steel and began deploying aircraft the airbases disappeared. Not all of them, just some of mine around the old ranger territory. Haven't checked with other playthroughs to find the similar bugs.
211094samuelhaley Oct 17 @ 5:24pm 
Mr. Stalker Oct 17 @ 4:23pm 
Any tips with Graven (Broken Coast). Im having a hard time early on.
54e_TNTDragon11 Oct 16 @ 7:39am 
@Wiking Thanks, I was having a huge brain fart on their name.
Wiking Oct 16 @ 7:02am 
54e_TNTDragon11 Heavens Gate?
54e_TNTDragon11 Oct 16 @ 5:58am 
@Josh You cant. The devs answer is "Because it looks cool". I am blanking on their name, but steampunk bois have the same thing.