Mods / Gameplay

• PPipe's Formable Puppetsby PipeAVWhat is the purpose of this mod? In the base game, the only nation which can create puppets from decisions is Germany with its Reichskommissariats. This mod attempts to address this, by adding new formable puppets which nations can create if they occupy certain states. The newly added puppets hav...21.4k downloadsupdated 3 mo ago
• 简简简单单72个建筑槽（Simply added 72 building slots）by 76561198351498154简简单单加一个72建筑位，AI好像可以用（我也不会修改AI不会用！）解决了老外那个建筑位错位问题 72个建筑位只限玩家使用版本 部分建筑独享建筑位修改： 基础设施 独享10个 合成炼油厂 独享10个 （KX只能3个） 储油罐 独享10个 火箭基地 独享2个 核反应堆 独享1个 建筑共享建筑位： 民用工厂 72个 军用工厂 72个 海军船坞 仅限海边36个 新增功能： 显示建造速度 可开关按钮操作 来自模组： Simply added 72 building slots. The AI ​​can't use it (I can't modify the AI ​​to use it),...21.4k downloadsupdated 5 mo ago
• NNovum Vexillum More Flavor Submodby lex0r77Updated for 1.12 This an overhaul mod for Novum Vexillum. The scope is pretty wide, since I intend to add country flavor as well as new mechanics. You can pretty much suggest me anything ^^ Fully Compatible with GC Features - Flavor for 2nd Gulf War (Iraq, USA, UK, Turkey): decisions chains, even...21.4k downloadsupdated 21 mo ago
• RRivers of Bloodby KevesRivers of Blood - An Alternative History Mod for Hearts of Iron IV, set in dark days of 1934 Rivers of Blood, or RoB for short, presents a timeline far different than the one of ours, with the first divergence occuring during 1794, in which the rebel forces of Polish-Lithuanian Commonwealth secur...21.3k downloadsupdated 4 y ago
• BBuilding Slots Revamped | 100 Slot Editionby Veridis QuoCurrent Game Version Compatibility: 1.19.* What Does This Mod Do? This mod increases the state building limits in Hearts of Iron IV and reworks the state building view so very high shared-slot limits remain usable. Raises the maximum shared building slot limit to 100. Raises Civilian Factory, Mil...21.3k downloadsupdated 4 mo ago
• OOWB: Restoring citiesby 76561198991079740You can now restore cities, establish new towns, and turn big towns into spanking new cities! Ever wondered why you can't restore a ruined city even though you obviously know how to build according to your techs? Do you want your citizens to live in housing that is not made out of literal scraps?...21.3k downloadsupdated 14 mo ago
• FFestung Europa - Endsieg-Ausgabeby 76561198877774424Festung Europa - Endsieg Ausgabe Festung Europa - Endsieg Ausgaveis a sub-mod for Reichskommissariats+ Also Compatible with GEACPS+! No patch needed! Patch with Crimson Edition available! Check out the Russian translation! Check out the Japanese translation! Although the mod is still incomplete a...21.3k downloadsupdated 5 mo ago
• PPeace Deals 停战会议[支持官方中文]by 76561199085596349允许玩家在战争僵持阶段提出议和 支持官方中文 已更新1.1721.2k downloadsupdated 11 mo ago
• FFast Research (Can Disable/Enable at will)by LimitspassedIn this mod you can research faster. - Only affects the Player AI is not affected. - These are done via decisions which add an idea to your nation which can be removed via the remove decision that appears. - If you remove the idea via the decision the modifier stays active until the month you are...21.2k downloadsupdated 7 y ago
• [[DEPRECATED] The Fire Rises - Southern Giantby gdn001SOUTHERN GIANT IS NOW PART OF THE FIRE REDUX (TFX) Development of Brazil and LATAM under the SG title shall continue under the TFX team. This upload will be maintained for a transitional period and eventually removed as it will be no longer updated, with future Brazil content coming to TFX. Thank...21.2k downloadsupdated 9 mo ago
• TThe "HOT" key( ~1.14)by 76561198942906504Isn't it so boring to go back to the left button every time you use nuclear bombs? This is my first mod ironman compatible Drop Nukes : H There is a bug that reduces the number of nuclear bombs if you keep pressing Please comment if you have any suggestions for improvement I got inspiration from...21.1k downloadsupdated 2 y ago
• KKorea - The Heavens Soldiers [Official Version]by 76561198351309465Version Update : 2026.6.13 호환 가능 버전 : 1.19.* 모드 업데이트 로그는 스크린샷 상단의 '변경 내역'을 눌러 확인해주세요! Q. So. what is this mod? A. This mode is an alternative historical scenario of story in which Korea in the modern future has returned with superior technology to 1936 year history. It is very fantasy-minded and...21.1k downloadsupdated 5 mo ago
• MMillenium Dawn: Extendedby 76561198329361317Ever feel too restrained by the need to choose from mutually exclusive focus? Have you ever wanted to become the most robust economy in Asia, such as Indonesia, or have more growth in the Germany, Botswana, China, and Italy? Do you ever have a more assertive Brazil that can reach the top ten econ...21.1k downloadsupdated 1 mo ago
• UUltimate Cheat Mod (OLD - Check Desc.)by Nikorasu-chanThis is the old version of Ultimate Cheat Mod. It no longer will be updated on this mod page. Unsubscribe from this one and resubscribe to the new one. - Link to Discord -21.0k downloadsupdated 7 y ago
• BBetter Laws for KaiserreduXby 76561198342580028A mod that expands the rudimentary law system into a well connected, intriguing web of choices that are balanced and impactful but also friendly to role play. Inspired by these mods: Better Mechanics : Civilian and Military Laws Better Government Pax Brittanica Millenium Dawn TNO Compatibility Th...21.0k downloadsupdated 3 y ago
• FFast Ship Building (Can Disable/Enable at will)by LimitspassedIn this mod you can build ships faster. - Only affects the Player AI is not affected. - These are done via decisions which add an idea to your nation which can be removed via the remove decision that appears. - If you remove the idea via the decision the modifier stays active until the month you...21.0k downloadsupdated 7 y ago
• 2233 Cheat Modby SaratogaThis is a mod for cheating, just have fun Supports both Chinese and English Function： 1.Political Power 2.Manpower 3.Stability 4.War Support 5.Army Experience,Navy Experience,Air Experience 6.Command Power 7.Factory Production Speed 8.Dockyard Production Speed 9.Building Speed 10.leaders 11.Armed...20.9k downloadsupdated 4 y ago
• MMore Sea Crossingsby Divine Retribution----------------------- |READ BELOW| ----------------------- This mod works despite it saying it's out dated. ------------------------------------------------------------------------------------------------------------------------------ This adds more pathways through the sea to make life/gamepla...20.9k downloadsupdated 10 y ago
• EERX Military Installationsby FoxySkiesWARNING! Under Zach Directions, this mod adds Chicago as a Final Boss! Do not take them lightly! WARNING: Chicago Bossfight is currently SEVRELY unbalanced due to my inability to properly test them due to constant save breaks. HIGHLY advised to ONLY choose no higher than Hard Mode! NOTE: I am wel...20.9k downloadsupdated 5 mo ago
• PPartial surrenderby DubVikingPartial surrender options through the use of decisions20.8k downloadsupdated 7 y ago
• RRelease Every Nation Through the UIby CSRZCompatible only with the 1.19 version of the game. Former name of the mod: "Release Every Nation as the UK" Only replaces one file (diplomacy_scripted_triggers.txt), but it can break (or be broken by) other mods that edit that file so be warned ahead. _________________ This mod allows the player...20.7k downloadsupdated 2 mo ago
• KKaiserreich: Russia Rework [NO LONGER UPDATED]by soclibdictator- You can enjoy the Russia Rework Content in the World Set Free and Kaiserredux Kaiserreich: Russia Rework is a submod for a popular HOI4 mod Kaiserreich. The submod is focused on reworking and expanding Russia political paths, including new focuses, events, icons, national spirits, foreign and e...20.7k downloadsupdated 6 y ago
• [[ENG/CN]Diplomacy Puppeteeringby 76561199613328609Introduction: Welcome to Diplomacy Puppeteering, a small Hearts of Iron IV mod that allows you to dominate geopolitics in a simpler way than ever before. Are you tired of watching other countries slip from your grasp? Now, you can reassert your dominance through straightforward means and expand y...20.7k downloadsupdated 3 y ago
• VVictorian Age (Abandoned)by UnwilledduckHello there, just some information: The team has broken up... We aren't working on this project the way we have... At the last update it was just me trying to add some concepts or half finished things but after the MTG update it is way too hard to continue. I have really enjoyed all the positive...20.6k downloadsupdated 8 y ago
• CChaos Modby AcerChaos Mod A new and improved chaos mod, with more features and more chaos. Based on Current version v1.4, for game version 1.17.* Features 200+ chaos effects (see change notes for a full list) Fully customisable, per-country chaos timer Quickly enable and disable for all players Includes 11 pre-m...20.6k downloadsupdated 11 mo ago
• TThe Great War Redux RP (Updated 25 September)by AckbaraddinTHE OFFICIAL Great War Redux RP Mod! RP DISCORD: If you want to see list of used mods : Show some love for these Mods that were combined for easy of use: Great War Redux: Player-Led Peace Conferences: State Transfer Tool MP: Greater Possibilities: National Ideas GUI: Sensible Theatre Icons: Strat...20.6k downloadsupdated 4 y ago
• YYoujo Senki | Redux (OLD)by OmryWe have moved! This is OUTDATED and no longer maintained.20.6k downloadsupdated 6 y ago
• LLower Build Cost (Buildings)by leion247This decreases the construction cost of all buildings. Allowing you to build buildings quicker. Feel free to give a suggestion to make this mod better, and to rate this on whether you enjoyed it or not. About Mod: This decreases the cost of All buildings to 2/3rds of it's original cost. Allowing...20.6k downloadsupdated 5 mo ago
• VV2.2「次元囚笼」二次元共产大联合by 765611990383304762026年8月16日，著名模组制作者霜泽图书馆馆长AOR组中流砥柱秋起同志游玩了此模组 ，在AI苏联日本中共英国中美洲印度的大力帮助下，成功用强大的步炮人海艰难战胜了区区机坦软柿子德意志，特此纪念，望周知。 V2.1「秋起：丢人现眼」二次元共产大联合 欢迎加入讨论群聊：646530811 不建议搭配其他修改内容的模组游玩！可能会导致兼容性问题。 B站： 本模组为单人制作，更新速度可能较慢，如果要反馈bug之类的请务必加群 —————当前大版本内的更新日志———————— 2.2.1版本更新 -平衡性调整 -已知问题修复 -内容追加 2.2版本更新 -新可玩国家：白俄罗斯 -整体平衡性数值...20.6k downloadsupdated 25 d ago
• NNo Special Forces Cap Updatedby FoxySkiesThis is an updated version of Special Forces Cap with updated code and updated Descriptor. All credit goes to Limitspassed for the original mod also by the same name but without the Updated part. ~~~ Compatibility, -Equestria At War - Yes -Old World Blues - Yes -Road To 56 - Yes -Cold War:Iron Cu...20.6k downloadsupdated 3 mo ago
• AAdditional Tank Slotsby AlicePracticeAs has been much requested: Additional Tank Slots(only) This is the "Tank only"-Version of my other mod Additional Ship AND TANK Slots ++ Updated++ :)20.5k downloadsupdated 4 y ago
• MMD: Quality of Life Improsby Black Jet of AllahWhat this mod does With this mod you can change the game rules for you to create factions, to declare war on countries with the same ideology or to send volunteers! - Interact with your puppets - Buy and sell weapons in the weapon market. Be careful when selling, as it can deplete your stock. Thi...20.4k downloadsupdated 3 y ago
• HHoI4: Partisan Modby MictecaHelp translate! The parts newly added in the 1.6.1 update are not translated from Japanese! Overview Even if resistances are actively active, it is enough to ignore the factory just by destroying the factory ... Do not you think it is wonderful? Also, are players from HoI 2 and HoI 3 nostalgic fo...20.4k downloadsupdated 7 y ago
• ((Retired) Realistic Production Packby Midnight "EKO" Snackerhey everyone sorry I haven't updated this. Please go to this mod it is a work around to make factories cheaper to build instead of lowering costs for production. Reason I did this was because everytime hoi4 added stuff to the tech tree I would have to remake the mod. This will be alot easier for...20.4k downloadsupdated 7 y ago
• HHearts of Iron: x1000by Keep calm and eat Milky WayDISCLAIMER I won't be updating this mod to the latest version. However, you can do that yourself as Didixo (thanks!) made a python script for exactly this: It's theoretically made for x10 but I trust you have enough hacking skillZ to make it 1000. First notes Guys we all know its from TF2 you don...20.4k downloadsupdated 8 y ago
• HHistorical Naval Production (w/ Lower Fuel Consumption)by Griffinshark**UPDATED: 4/8/22** This is the updated mod of "Historical Naval Production" Because of the great amount of players that felt that increased ship production was crippled due to the increased fuel demand, I have updated the original mod to now half all navy fuel usage to account for the doubling o...20.3k downloadsupdated 5 y ago
• SSnow's Reichskommissariatsby SnowThis mod adds new and improved Reichskommissariats to the game, each having an individual flag and - in the future - focus tree. Upon the release of the RKs, some cities change their names to German ones. Namely, the new and (so far partially) reworked Reichskommissariats are: Reichskommissariat...20.2k downloadsupdated 4 y ago
• KKaiserreich Submod - Victoria Louise for Puppet Franceby LoganThis mod adds a decision for Germany to install Victoria Louise (Willhelm II's daughter) as the ruler of the German Puppet of France. I plan to add a unique focus tree as well, but I'm not too experienced at it and any help is welcome. Puppet France units here: To do: -Custom Focus Tree20.2k downloadsupdated 9 y ago
• TTrotsky Leads Mexicoby thefuegolord126Señor Trostky? This is a 'memey' mod that I made and actually put a lot of effort into. It's largely based on the WTT easter egg with Señor Hilter leading fascist Argentina, but I greatly expanded on the 'Trotsky in Mexico' idea. I've made a decent-sized and, let's say, fairly balanced Focus Tree...20.1k downloadsupdated 9 y ago
• TTNO: Custom Country Paths (HAS BEEN INTEGRATED)by Best WizardNOTICE This submod has been integrated into the main TNO mod as of v1.3.0 “Toolbox Theory - Unfinished Business”. (Updated to TNO version v1.2.1a - “Toolbox Theory NSB Patch”) Introduction We, like many others, had been waiting quite some time for someone to step forth and develop a Custom Countr...20.1k downloadsupdated 5 y ago
• CConstruction Speed +100%by AeneasXII made Mod because of a request. This Mod increases Construction speed by +100% for all Nations! - Save-Game Compatible! - I created a unique .lua file to maximize Compatibility with other Mods so it is compatible with all Mods that do not change the same Command! For additional Construction Spee...20.1k downloadsupdated 7 y ago
• --Project FLAGSby AbbusAll of the Vanila flags revisited. (DLC & Official Formable Nation included) Warning: - Offensive symbol which include Communism, Nazism, Fascism, Militarism, Religious, Third Positionism, Falangismo and Extremism. - Non-historical accurate but I'll try to stick to it - All of the flag were: - Go...20.1k downloadsupdated 5 y ago
• MMillennium Dawn: Multiplayer Overhaulby ConnerLast updated on HOI4 v1.17, Despite what the launcher says, yes, it works. Description: This is a submod to Millennium Dawn meant to overhaul it to be a faster, more fun, more balanced, and overall improved experienced. It also includes roleplay tools such as write letters, state transfer tool, a...20.0k downloadsupdated 9 mo ago
• FFormable Nations for Road to 56by 76561198353471765As the caption indicates, this is the famous ‘Formable Nations’ mod, but with full compatibility with the ‘Road To 56’ mod. (JULY 2025) It does not add any new formable (for the moment) but modifies most of the existing formables, both to expand some ideas such as ‘Greater Croatia’ as well as for...20.0k downloadsupdated 16 mo ago
• LLower Build Cost (Naval)by leion247This decreases the build/production cost of ships. Letting you to use less docks for ships. Feel free to give a suggestion to make this mod better, and to rate this on whether you enjoyed it or not. About Mod: This decreases the cost of ships and their modules to 2/3rds of their original cost. Al...20.0k downloadsupdated 5 mo ago
• EEvery Nation Boostable [Discontinued]by LarsFor an updated version: This mod makes every single Nation in the World boostable. Whether they have been released yet or not you can boost them in advance. You ever wanted your home country to be as strong as your history books say they were? Now you can live out that dream :) You will find the...20.0k downloadsupdated 9 y ago
• ((OUTDATE)Real Terrain Picture(1.13)by Ndlf######################################### This MOD is an older version. NEW: ########################################### This is a mod that changes the "terrain picture" to a real picture. Use unique pictures with 500 provinces. #NOT compatible with Ironman. Provinces that use unique photos are a...20.0k downloadsupdated 3 y ago
• HHistorical Vehicle Overhaulby Edward The Black PrinceThe Historical Vehicle Overhaul (HVO) The original armored realism mod is back and updated for version 1.9! The Historical Vehicle Overhaul (HVO), aims to enrich HOI IV with over two hundred historically accurate armored fighting vehicles. By replacing the generic equipment found in vanilla with...20.0k downloadsupdated 7 y ago

1.2k gameplay mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.