+English Awakening of the Prefectures ambitions
This is an unofficial English translation of Awakening of the Prefectures Ambitions (AoP), a large-scale Japanese HoI4 mod where Japan is divided into 47 prefectures, each fighting for supremacy in unique scenarios.
Most of the mod content has now been translated into English. Since AoP was originally developed in Japanese, some elements in common files and history files contained Japanese text, which has been translated for a smoother experience.
Note:
1.AoP works with HoI4 version 1.16.*
*As of September 2025, AoP is compatible with HoI4 version 1.16.*
*Please downgrade your HoI4 installation before playing to avoid issues.
(If you are not sure how to downgrade your HoI4 version, please refer to the picture below.)
2.Some names may still appear in Japanese(In English game environments, these may show up as "???")
*Divisions of nations that don’t exist at game start
*Generals, divisions, and naval units added through decisions or events
AoP Scenario Overview – Japan 47 Prefectures
Hokkaido & Tohoku Region Will Hokkaido push south? Can Tohoku unite to defend against invasions?
*Hokkaido: Rich in resources. Think of it like the USSR in the original Hoi4.
*Miyagi: Acts as the leader of Tohoku, uniting neighboring prefectures against invasions.
Kanto Region The Gunma–Chiba axis challenges the order of the capital, Tokyo
*Gunma: The protagonist of AoP. Challenges the order of Tokyo. Comparable to Germany.
*Tokyo: High potential but suffers from many penalties. Similar to the USA or France.
*Chiba: Reliable? ally of Gunma. Think of it as Italy.
*Kanagawa: Home to Japan’s strongest navy. Comparable to the UK.
Chubu Region Sandwiched between Kanto and Kansai
*Aichi: Strong industrial base but affected by isolationist tendencies.
*Niigata: Located north of Gunma, flexible in joining various factions.
Kinki (Kansai) Region A chaotic conflict unfolds, unlike in Kanto
*Osaka: Regional leader of Kansai, but not an overwhelming power.
*Hyogo: Faces collapse due to regional conflicts. Think of it like Yugoslavia.
Chugoku Region Five smaller states exist
Shikoku Region Hosts the “Shikoku Battle Royale”
Kyushu Region Recently? added content; few National Focus trees are incomplete
*Fukuoka: Collapses under ideological conflicts, similar to Spain in the original game.
*Kumamoto: Aggressively pursues expansion policies.
For more information, check the official AoP page or the translated documentation at the bottom of this page.
From https://steamcommunity.com/sharedfiles/filedetails/?id=855397602
[For users experiencing issues]
If you encounter problems, try deleting the map and history folders inside:
DocumentsParadox InteractiveHearts of Iron IV
[What is this mod?]
This is a Hearts of Iron IV Japan Prefectures mod (AoP).
It completely restructures Japan into 47 independent prefectures, adding unique national focuses, events, and scenarios centered around them.
Be patient and enjoy exploring the new campaign!
[Changes this mod introduces]
*Removes existing nations and adds new ones
*Adds new scenarios
*Modifies province-level map data
*Adds custom National Focus trees
*Adds new events
*Modifies technology trees
*Adds/removes some buildings
*Adjusts division battalion stats
*Changes game rules, e.g., conscription
[Important Notes]
*Japanese original
*Multiplayer is not guaranteed
*Do not use with other mods except required prerequisites
[Credits]
Concept & Idea: akimoko
Coding: akimoko, Isihiro, パルプンテ, i70k, Kubaani, Emil Scarlet, VagrantP, NIKA, 半角主義者, Yuuuki, eightman
Development Management: eightman
Graphics: akimoko, ディアボロ, マイヤード, Kubaani, Yuuuki, 西日本連邦共和国
Scenario: akimoko, マイヤード
Content: akimoko, Yuuuki
Map: akimoko, Isihiro, tokiwa, WACHA
Map Data: CK2 NMIH開発チーム
Assets: 雨佐 Taicy, ドイーシャ, 瑞鶴1937, ムラマサ, Cpuno, AZERTY, osino81
Debugging: のんのん, koma .org, ブイスト, ムラマサ, 焼林檎, etc.
Special Thanks: Hoi4 初心者補助
Required items:
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Awakening of the Prefectures ambitions — Steam Workshop