What changed in Hearts of Iron IV in 2016

Reduced AI tendency to suicide attack into enemy lines.

CTD Fix: Should no longer crash in GUI if a modder deletes the vanilla window component.

Fixed a CTD in peace conferences.

Shortcut for spearhead order is now Shift+X rather than B which was conflicting with strategic redeployment.

Fix for missing event in CAN focus tree.

Fix for Mexico Civil War inconsistencies.

When a Spearhead front is split, all units stay on the front that has the spearhead order attached to it.

Fix for missing event in CAN focus tree.

Added port to Lesser Sundra Islands.

Improved some target templates for AI.

Improved AI's ability to prepare against enemies that they only have an ally sharing border with.

Made the focus 'Burn the royal portraits' available if South Africa has already broken free.

Fixed some event picture issues.

Fix for South Africa releasing African countries as not communist in the anti-colonialist crusade.

Fixed some setup issues with NZL tech setup in 1939.

A fix for a trade modifier not applied correctly if not bought the DLC.

CTD Fix: Launcher no longer has msaa and anisotropic filtering that could cause crashes.

Fix for missing INS convoys causing issues with trade/resource system.

Reduced AI tendency to suicide attack into enemy lines.

Improved some target templates for AI.

Allied AI now more hesitant to naval invade Germany and Italy early on.

Fix for Mexico Civil War inconsistencies.

Added a button (and a checkbox in crash report window), that offers to backup and delete all files that can potentially cause the stability problems.

Added cosmetic tag for Soviet-controlled Finland.

Spearhead order no longer so concerned about protecting its flanks.

Fix for RAJ Famine removal not really needing corruption squashing.

Garrison order should now be more stable and not reassign units quite as much on changing priorities.

Fixed an issue with map stripe coloring not updating in peace conferences.

Shortcut for spearhead order is now Shift+X rather than B which was conflicting with strategic redeployment.

Fix for missing SAF factories from focus.

Spearhead order no longer so concerned about protecting its flanks.

CTD Fix: Sometimes when hotjoining using manual server ID.

CTD Fix: if player deleted a mod while launcher was running, and then selected it.

Fixed some setup issues with NZL tech setup in 1939.

Fixed some bugs restricting AI from template updates.

Fix for South Africa releasing African countries as not communist in the anti-colonialist crusade.

Allied AI now more hesitant to naval invade Germany and Italy early on.

Fixed script that used values outside the intended range.

Fixed a problem in AI where front priorities would sometimes fluctuate wildly leading to a lot of front flip-flopping.

A fix for a trade modifier not applied correctly if not bought the DLC.

Fix for RAJ being able to pick ideology pushers without picking a path.

Changed national focus to Test the USSR for Japan to account for Manchukuo existing.

Improved AI's ability to prepare against enemies that they only have an ally sharing border with.

Optimized AI processing of upgrades, should remove much of 1940+ performance spikes.

Made the focus 'Burn the royal portraits' available if South Africa has already broken free.

Multiple CTD fixes related to launcher and mod usage.

When a Spearhead front is split, all units stay on the front that has the spearhead order attached to it.

Fix for missing INS convoys causing issues with trade/resource system.

Fix for RAJ being able to pick ideology pushers without picking a path.

AI now considers distance a bit more so won't pull most of its army vs Ethiopia back early on.

Fixed script that used values outside the intended range.

AI for observed country is no longer blocked from diplo responding when using human_ai.

Fixed a CTD in peace conferences.

CTD Fix: When using old saves or incompatible mods due to naval base positioning.

Fixed a problem in AI where front priorities would sometimes fluctuate wildly leading to a lot of front flip-flopping.

CTD Fix: Tooltiping lend lease as it finishes could cause crashes.

Fixed modifier capped 0-1, so you could never lower tension for sending volunteers for a country.

AI now considers distance a bit more so won't pull most of its army vs Ethiopia back early on.

AI for observed country is no longer blocked from diplo responding when using human_ai.

Fixed some issues with credits.

Fix for missing SAF factories from focus.

Fixed modifier capped 0-1, so you could never lower tension for sending volunteers for a country.

Added cosmetic tag for Soviet-controlled Finland.

Fixed some bugs restricting AI from template updates.

Changed national focus to Test the USSR for Japan to account for Manchukuo existing.

Garrison order should now be more stable and not reassign units quite as much on changing priorities.

Added port to Lesser Sundra Islands.

Fixed an issue with map stripe coloring not updating in peace conferences.

Fixed some issues with credits.

Fix for RAJ Famine removal not really needing corruption squashing.

Fixed some event picture issues.

Fixed a crash on load with invalid mods, NOT a complete fix, its something we are looking into more for future update to help players clear their document folder of invalid cache files and corruption.

Optimized AI processing of upgrades, should remove much of 1940+ performance spikes.

Each Dominion nation has alternate history branches for unique gameplay.

The first expansion for Hearts of Iron IV, Together for Victory, will be available on December 15, 2016.

Tweaked base AI research factor for mechanized and lowered top level infantry weapons.

A new Spearhead battleplan command where units will aggressively take only marked provinces.

Choose a National Focus to boost capabilities over time.

Choose a National Focus to boost your nation's capabilities over time.

A Land Battle Log giving you history and statistics of combats for a theater.

A technology sharing system where members of the Commonwealth or factions can benefit from each other's technological advances.

A new order simplifies breakthroughs in land invasions.

3 new commonwealth themed music tracks by composer Andreas Waldetoft.

Added new focus trees, generals, and ministers for Canada, Australia, New Zealand, South Africa, and India including alternate history paths.

Extensive details on division performance in battles are now available.

Choose a National Focus to boost capabilities over time.

Focus trees now remember their position when closed.

Players can request assistance from great powers to accelerate their own research.

New portraits for leaders, redone portraits for old leaders, and new unit designs and event pictures.

Each Dominion nation has alternate history branches for unique gameplay experiences.

Players can ask for lend lease assistance to receive new vehicles and equipment.

A new order simplifies breakthroughs in land invasions.

New mechanic allowing nations to assert independence based on their subservience level.

Cozy up to an advanced great power to accelerate your own development.

Added various new triggers and modifiers for modding capabilities.

Diplomacy window 'sort by our opinion' now handles reverse sort.

Added an alert for outdated equipment in production view.

Extensive details on the performance of your divisions in battle are now available.

New Autonomy system where a nation's autonomy can move between various states with different effects.

New portraits for leaders, redesigned old portraits, and new unit designs and event pictures.

Voice over sound for infantry units in multiple languages.

New order simplifies breakthroughs in land invasions.

New portraits for leaders, redesigned old portraits, and new unit designs and event pictures.

Together for Victory will be available on December 15, 2016 for $14.99.

Added achievement viewer to track player achievements.

New portraits for leaders, redesigned old portraits, and new unit designs and event pictures.

Canada, Australia, New Zealand, South Africa, and India receive unique National Focus Trees.

Subject states can have a range of actions, allowing Dominions, Puppet States, and Colonies to work towards total independence.

Fixed casting errors in AI that could make it assign troops to a non-optimal front.

Fixed casting errors in AI that could make it assign troops to a non-optimal front.

Focus trees now remember their position when closed.

Detailed performance logs of divisions in battle are now available.

A new order simplifies breakthroughs in land invasions.

Diplomacy window 'sort by our opinion' now handles reverse sort.

Added num_tech_sharing_groups trigger to count active tech groups for a nation.

Ask for assistance in the form of lend lease, adding new vehicles and equipment.

The first expansion for Hearts of Iron IV, focusing on British Dominions and Commonwealth nations.

A new command where units will aggressively take only marked provinces.

Added alert for outdated equipment in production view.

Added an achievement viewer to track progress.

Nations can request assistance in the form of lend lease for vehicles and equipment.

Canada, Australia, New Zealand, South Africa, and India receive unique National Focus Trees.

A technology sharing system where members of the commonwealth or factions can benefit from each other's technological advances.

The first expansion for Hearts of Iron IV, focusing on British Dominions and Commonwealth nations.

Nations can assert themselves and gain full independence based on their subservience level.

A Land Battle Log giving you history and statistics of combats for a theater.

Choose a National Focus to boost your nation's capabilities over time.

Ability to share technology with advanced great powers to accelerate development.

Voice over sound for infantry units in multiple languages.

Subject states can have a range of action, allowing Dominions, Puppet States, and Colonies to work towards total independence.

New focus trees, generals, and ministers for Canada, Australia, New Zealand, South Africa and India including alternate history paths.

New feature to request assistance in the form of lend lease from other nations.

3 new Commonwealth themed music tracks by composer Andreas Waldetoft.

Extensive details on the performance of divisions in battle are now available.

A new Autonomy system where a nation's autonomy can move between various states with different effects.

Each Dominion nation has alternate history branches for unique gameplay.

Each Dominion nation has alternate history branches to explore.

Nations can share technology with advanced great powers to accelerate development.

Tweaked base AI research factor for mechanized and lowered top level infantry weapons.

Air attack stat of anti-air battalions now reduces enemy air superiority effects.

Warscore now earned from battles, with location and victory status affecting score.

Warscore now earned from battles, improving the importance of combat outcomes.

New cosmetic tags allow modders to change country names and flags based on conditions.

Manchukuo will be reintroduced as an integrated puppet of Japan.

Various fixes to improve AI unit behavior, including recovery from unreachable locations.

New cosmetic tags allow modders to change country names and flags based on conditions.

Manchukuo is reintroduced as an integrated puppet of Japan.

New art representations for equipment and vehicles added to enhance gameplay.

The Together For Victory expansion will be released on December 15th.

The Together For Victory expansion will be released on December 15th.

Multiple AI bugs fixed, improving unit behavior and order assignment.

Added new visual representations for equipment and vehicles of commonwealth nations.

Anti-air battalions now reduce enemy air superiority effects in combat and outside.

Units will now respond in their native language when selected and during combat.

Three new themed tracks added for Commonwealth countries in the Together for Victory expansion.

Easier modding of Voice Over for additional countries using the new audio script system.

Three new themed tracks for Commonwealth countries added to the game.

Voice Over recorded in German, French, Italian, British, American, Spanish, Russian, Simplified Chinese, Japanese, and Nordic languages.

A music player added to manage and play music, with options for song selection.

Voice Over recorded in German, French, Italian, British, American, Spanish, Russian, Simplified Chinese, Japanese, and Nordic languages.

A music player added to manage and play music tracks, allowing for playlist customization.

Units will now respond in their native tongue when selected and given orders, with different lines during combat.

Easier modding of Voice Over for additional countries by replacing .wav files and scripting in new audio.

Players can recruit forces from their subjects using a new autonomy system, affecting manpower and deployment.

India starts with the national spirit 'risk of famine', requiring players to manage internal issues to prevent famine.

India is limited to a volunteer army until higher autonomy levels are achieved, with focuses providing unique forces.

India is limited to a volunteer army until higher autonomy levels are achieved, with options for distinct Indian forces.

India starts with a national spirit that presents challenges related to famine, requiring player intervention to manage.

New gameplay mechanics for India, including paths towards independence and military recruitment from subjects.

Players can recruit forces from their subjects using a new autonomy system, affecting military and political dynamics.

Players can choose between cooperating with the British for autonomy or pursuing self-governance through the Swaraj path.

Dominions can trade above trade law limits, receive cheaper trade, and have restrictions on declaring wars and refusing calls to war.

Puppets have less technology sharing effects and can have subject troops recruited more easily.

Countries can be completely absorbed by their master through diplomatic means.

Countries that are diplo annexed cease to exist and are fully absorbed by the master.

Various actions such as building, recruiting troops, and trading affect the autonomy levels of subjects.

Integrated Puppets allow masters to trade freely and control a significant portion of the subject's industry.

Colonies have reduced technology sharing effects and can have subject troops recruited by the master.

Dominions can trade above trade law limits, receive cheaper trade, and have restrictions on declaring wars.

Puppets have trade advantages over Colonies and can have their troops recruited more easily.

A new concept replacing the old master-puppet relationship, allowing nations to exist on a scale with fixed steps.

Integrated Puppets allow the master to trade freely and control a portion of the subject's industry.

Building in subjects lowers their autonomy, while recruiting or using troops increases it.

A new concept replacing the old master-puppet relationship, allowing nations to exist on a scale with fixed steps.

Colonies have more trade advantages than Dominions but receive less technology sharing benefits.

Political Power is required to change autonomy levels, influenced by various actions like building or recruiting troops.

Changed costs of forts to ramp up with higher levels, making base level cheaper and higher levels more expensive.

Reduced the base free repair effect to make the Construction Repairs focus more interesting.

A new type of national focuses that provide ongoing bonuses while active, requiring prior completion of regular focuses.

New type of national focuses that provide bonuses while active and can be turned off to manage political power.

Added focuses such as Army Training, Naval Production, Air Production, Resistance Suppression, Technology Sharing, Increase Autonomy, Suppress Subjects, Construction Engineering, and Construction Repairs.

South Africa is added as a playable nation with unique national spirits and political paths.

The base free repair effect has been reduced to enhance the importance of the Construction Repairs focus.

Includes focuses like Army Training, Naval Production, Air Production, Resistance Suppression, Technology Sharing, Increase Autonomy, Suppress Subjects, Construction Engineering, and Construction Repairs.

Fort costs now ramp up with higher levels, making high-level forts a major investment.

Introduced national focuses for South Africa that allow players to navigate political choices and historical events.

New bonuses and improvements through Continuous National Focus ideas.

Nations can request Lend-Lease agreements for equipment and vehicles.

Various updates and changes to the combat system.

Nations can request Lend-Lease agreements from allies for equipment and vehicles.

Different levels of dependency and status for subject nations including puppets and Dominions.

New focus trees for Australia, Canada, New Zealand, South Africa, and the British Raj.

First expansion for Hearts of Iron IV focusing on the British dominions and colonies.

Various updates and changes to the combat system included in the expansion.

First expansion for Hearts of Iron IV focusing on Commonwealth nations.

New National Focus trees for Australia, Canada, New Zealand, South Africa, and the British Raj.

Different levels of dependency and status for subject nations including puppets and Dominions.

New bonuses and improvements as nations progress through the war.

Progress made on resolving issues related to small vs big air wings.

Progress made on solving issues related to small vs big air wings.

A feature allowing nations to share technological progress with other members of their sharing group.

Australia receives a new focus tree with multiple mutually exclusive paths, including political choices and wartime emergency foci.

Australia starts with the national spirit Great Depression, limiting production capacity initially.

Australia receives a new focus tree with mutually exclusive paths and unique historical options.

Rebalancing efforts made regarding small vs big air wings and similar issues in naval combat.

Rebalancing of small vs big air wings and similar issues in naval combat.

New feature allowing nations to share technological progress with other members of their sharing group, enhancing research bonuses.

New feature allowing players to request specific types of equipment from allies, with the ability to modify requests.

Introduction of a new system for managing puppet/subject relationships with levels that can be affected.

Introduction of a new system for puppet/subject relationships with levels that can be affected.

Introduction of a new focus tree for Canada, addressing economic recovery, conscription issues, and military mobilization.

New feature allowing players to request specific types of equipment from allies, with the ability to modify existing lend-lease agreements.

Introduction of a new focus tree for Canada, addressing economic recovery and conscription issues.

Enhanced AI ability to identify encirclements and choke points, increasing the challenge of executing successful encirclements.

Garrison orders can now be configured to guard specific areas, such as only ports and coastlines, with division count assistance.

Introducing the Blitz Command tool for battle plans, allowing for more precise unit orders without readjusting width.

Garrison orders can now be configured to guard specific areas, such as ports and coastlines.

Enhanced AI ability to identify encirclements and choke points, making successful encirclements more challenging.

Introducing Blitz Command to enhance battle plans, allowing for more precise control over unit orders without readjusting width.

Fixed an issue where German AI refused to attack outnumbered units.

Fixed a bug where German AI refused to attack units it massively outnumbered.

Added 14 new icons for armies to improve differentiation.

Looking to integrate the Enhanced Peace Conference AI mod into the patch.

Looking to integrate the Enhanced Peace Conference AI mod into the patch.

Added 14 new icons for Armies to improve differentiation.

Implemented changes to focus tree mechanics, including blocking foci when a country has capitulated and ensuring building control is checked.

Added the ability to compact entries for managing divisions training in parallel and color-coded training blocked by lack of equipment.

Implemented changes to focus mechanics, including blocking foci for capitulated countries and ensuring proper state control for building.

Addressed various bugs related to National Foci, including issues with exiled governments and diplomatic actions.

Tweaked naval balance to promote mixed fleets, discourage light cruiser spam, and strengthen torpedoes.

Fixed bugs affecting submarines and convoy raiding, including detection improvements and changes to sunk convoys' impact on transport efficiency.

Fixed bugs related to submarines and convoy raiding, including raiders attacking empty routes and improved general detection.

Enhanced AI's use of fleets and missions, with ongoing improvements planned for future updates.

Fixed various bugs related to focus trees, including issues with exiled governments and diplomatic pressures.

Added focus 'Permanent Revolution' for Soviet players choosing Trotsky, improving his political power and gameplay viability.

Naval battle and port strike reports now provide a quick summary of damage to survivors.

Compact entries for managing multiple divisions training in parallel, with color coding for blocked training due to lack of equipment.

Added a focus for Soviet players to make Trotsky a more viable choice after the civil war, unlocking new traits and reducing penalties.

Promoted mixed fleets, discouraged light cruiser spam, and increased torpedo strength while lowering evasion impact.

Fixed a bug where AI could give away states to countries not at war, leading to immediate return of the state.

Laos, Vietnam, and Cambodia can now be released, alongside Indonesia and Malaysia from the UK and Netherlands.

AI can now cancel deployment lines when it needs equipment in the field.

AI can now cancel deployment lines when it needs equipment in the field, with improvements to template upgrade and selection.

Ukrainian SSR, Georgia, Armenia, and Azerbaijan are now available as releasable cores.

Ukrainian SSR, Georgia, Armenia, and Azerbaijan are now available as releasable cores.

Fixed a bug where AI could give away states to countries not at war, leading to immediate return to original owner.

Laos, Vietnam, and Cambodia can now be released, along with Indonesia and Malaysia from the UK and Netherlands.

AI can now upgrade division templates more effectively, including transitioning from light to medium armor.

AI now avoids small encirclements and can build nuclear reactors for late-game.

Port strikes can now only be performed if enemy air superiority is below 30%.

AI can now upgrade division templates from light armor to medium armor more effectively.

AI now better utilizes available ships and prioritizes defending invasions.

Port strikes can now only be performed if enemy air superiority is below 30%.

AI now better utilizes ships for naval missions and prioritizes defending invasions.

AI now avoids small encirclements and can build nuclear reactors in late game.

This is possible if they choose the Support Nationalists focus.

For users with very small or very high resolution displays (experimental).

Resolved when continuing save games.

Resolved case where fleets outside base range would be instantly deleted.

Resolutions are now faster and properly indicate activity to non-participants.

Defaults to 75 fps to help users with heat issues.

Resolved issues in both English and other languages.

Prevented players from redirecting a naval transfer into an invasion without preparation.

If they choose the Support Nationalists focus.

Experimental option for very small or very high resolution displays.

Prevented players from redirecting a naval transfer into an invasion without preparation.

Resolved issue when continuing save games.

Defaults to 75 fps to help with heat issues on high refresh rate screens.

Resolved issues in both English and other languages.

Resolutions are now faster and properly indicate activity to non-participants.

If they choose the Support Nationalists focus.

If they choose the Support Nationalists focus.

Defaults to 75 fps to help with heat issues.

For people with very small or very high resolution displays (experimental).

Players can now zoom in and out using PgUp and PgDown buttons.

Both in English and other languages.

Without preparation.

Also properly indicate that they are active to non-participants.

Prevented players from redirecting a naval transfer into an invasion without preparation.

Both in English and other languages.

Resolutions are now faster and properly indicate that they are active to non-participants.

For people with very small or very high resolution displays (experimental).

Defaults to 75 fps to help with heat issues on certain setups.

Resolved when continuing savegames.

When continuing savegames.

Paradox Development Studio returns with the release of Hearts of Iron IV, a grand strategy war game set during World War II.

Players can start the game in 1939 with the outbreak of war or in 1936 to prepare for the conflict.

Control the seven strongest nations with exclusive National Focus trees.

First minor power National Focus DLC available for free.

The first minor power National Focus DLC, Poland: United and Ready, is available for free to all customers.

Hearts of Iron IV is set to be released on June 6th, 2016.

Hearts of Iron IV is set to be released on June 6th, 2016.

Upgrade weapons, learn military doctrines, and unlock new technologies.

Hearts of Iron IV features a music pack with licensed songs from the heavy metal band Sabaton, themed around World War II.

Set plans in advance for armies and execute missions with a click.

Players can set plans in advance for their armies and watch them execute their missions with a click.

Players can upgrade weapons and vehicles, learn new military doctrines, and unlock advanced technologies.

Start in 1939 or 1936 to prepare for conflict.

Includes World War II themed songs for the game.

New naming conventions for Polish naval ships based on historical and cultural references.

A new DLC focused on Poland, featuring a focus tree, 2D and 3D art, achievements, and events, released for free.

Players can pursue the Between the Seas Concept, creating a faction of countries between the Baltic, Black Sea, and Mediterranean.

New 2D art for tanks, planes, ministers, generals, and country leaders, along with 3D art for infantry and notable vehicles.

New 2D art for Polish ministers, generals, and country leaders.

New diplomatic options allowing Poland to seek accommodation with Germany or the USSR.

Poland can now seek accommodation with Germany or the USSR, potentially leading to alliances.

New 3D art for Polish infantry and notable tanks and planes.

Introduction of a new focus tree for Poland with unique benefits and flavor.

Special focuses that provide bonuses in computing and decryption for Poland.

New 2D art for Polish tanks and planes, complete with flavor names.

New faction creation option for Poland based on the historical Between the Seas Concept.

A new focus tree for Poland has been added, providing unique gameplay options and strategies.

Creative naming conventions for Polish naval equipment based on historical references.

New achievements and events have been added to enhance gameplay for Polish players.

Poland receives special focuses that provide bonuses in computing and decryption, reflecting historical advantages.

A new DLC focusing on Poland has been released for free, available to all players who purchase Hearts of Iron IV.

Focus on the Four Year Plan for industrialization, enhancing infrastructure and industrial regions.

Introduction of new achievements and events related to Poland.

Plans to release .mesh formats to enable community tools for other software like Blender.

Download the Clausewitz Maya Exporter to create your own 3D models for mods.

Download the Clausewitz Maya Exporter to create 3D models for mods in Hearts of Iron IV and other Paradox titles.

Plans to release .mesh formats to enable community-created exporters for other software like Blender.

AI can now pick national focuses based on scripted weights and dynamic systems, allowing for extensive modding options.

AI scoring for peace deals is now fully scriptable, allowing for tailored experiences based on ideology and country.

Introduced a dynamic AI system that adapts to historical and non-historical situations using scripted weights and national focuses.

Introduced modifiers that can change AI behavior based on country leaders, enhancing modding capabilities.

AI scoring for peace deals is now fully scriptable, allowing for ideological and country-specific adjustments.

Improved the AI's ability to execute player-drawn battle plans, making it more reliable in managing large armies.

Introduced a dynamic AI system that adapts to historical and non-historical situations, enhancing gameplay experience.

AI behavior can now be modified through defines and weights, allowing extensive customization for modders.

Introduced modifiers that affect AI attitudes towards other countries based on leaders and traits.

Improved AI execution of player-drawn battle plans to reduce mistakes and enhance usability.

New GUI window types and tools have been introduced to make modding easier, including container windows and grid boxes.

The game features over 1200 tech, idea, and focus icons, along with more detailed and decorated UI elements.

The interface has been streamlined to reduce clicks and provide more information directly from the map.

The interface has been redesigned to be more accessible, reducing clicks to reach important screens and displaying more information directly on the map.

Introduction of 'containerWindowType' for better modding support and improved UI layout.

Efforts to depict historically accurate tanks and equipment using extensive references.

Modders can now easily add country-specific equipment and leaders with new tagging and file management features.

New tools and tech have been created to make the game more mod friendly, including automatic reload of GUI changes.

Changes made in the GUI will automatically reload, eliminating the need for manual reloads.

Over 1200 tech, idea, and focus icons combined, with a more detailed and decorated look.

Added functionality for scripted effects and triggers to reduce code duplication and improve maintainability.

Introduced 'trigger_docs' console command to list all triggers and effects with descriptions.

Addition of scripted triggers and effects to reduce code duplication and improve maintainability in mod scripts.

Introduction of new modding tools including a mod creation launcher, Nudger tool for map modifications, and an instant feedback system called 'Error Dawg'.

Transition from Lua scripts to a more moddable AI system, enhancing performance and flexibility for modders.

Added 'Error Dawg' for instant feedback on scripting errors during gameplay.

Game systems and interfaces can now reload automatically, allowing for instant in-game changes without restarting.

Implemented reloadability for interfaces and game systems, allowing instant in-game changes without restarting.

Introduced event targets in the script language for easier reference and execution of effects on specific targets.

Introduced new tools for modding, including a mod tool for easy creation and a Nudger tool for map modifications.

Innovative gameplay feature allowing players to physically march with soldiers using a DDR mat.

New focus tree for nations without specific trees, allowing flexibility and freedom in gameplay.

New focuses that provide technology bonuses in chosen fields, allowing players to tailor their military development.

Players can now march in real time with their soldiers using a DDR mat, enhancing the gameplay experience.

Allows players to alter their nation's political makeup with choices between collectivism and liberty.

A new DLC system that allows players to experience authentic environmental challenges.

New branches that provide technology bonuses and choices for naval and army development.

Focus on building up a nation's industry, enhancing viability for smaller nations.

Hearts of Iron IV delayed until Q1 next year to improve player connection.

Focus on building up a nation's industry, particularly beneficial for smaller nations.

New DLC system featuring immersive environmental experiences like swamp water and mud.

Allows alteration of a nation's political makeup with choices between collectivism and liberty.

The release of Hearts of Iron IV has been delayed until Q1 next year to improve player connection.

A new generic focus tree for nations without specific trees, allowing for flexible gameplay and additional factory slots.

Hearts of Iron IV is set to release on 6th of June.

Hearts of Iron IV is set to release on 6th of June.

Players must construct Reactors to produce nuclear bombs, with more reactors allowing faster production.

To launch a nuke, strategic bombers must be in range of the target and air superiority is required.

Nuclear weapons are now a late game tech with a multi-step acquisition process.

Nuclear weapons are now a late game tech with steps to acquire them including researching Atomic Research, Reactors, and Nuclear Weapons.

Nukes hit national unity, damage buildings, and harm units in the targeted province.

Players must construct Reactors to produce nuclear bombs, which compete for space with industry.

Nukes can damage buildings, units, and affect national unity to force enemy surrender.

Marines are more effective than other troops for securing beachheads during invasions.

Invasions require a certain number of convoys and preparation time based on the size of the invasion.

Troops are vulnerable while unloading from ships and face penalties during naval invasions.

Sufficient naval supremacy is needed to pass through strategic areas during an invasion.

Researching transportation technologies can improve invasion efficiency and reduce preparation time.

Stationing battleships at the destination coastline provides naval bombardment support during invasions.

Detailed explanation of the requirements and strategies for executing naval invasions.

Invasions require troops to be positioned at a naval base and an invasion plan to be drawn up, with preparation time depending on the size of the invasion.

Using Marines, escort ships, and battleships can improve the chances of a successful invasion.

Troops must be positioned at a starting naval base and an invasion plan must be drawn up.

Using a commander with the Invader trait speeds up preparation and readiness of invading troops.

Sufficient naval supremacy and air superiority are required to launch a naval invasion, preventing easy troop landings.

Troops must unload from ships before being able to fire back, with specific penalties during the invasion.

Using a commander with the Invader trait and researching transportation technologies can enhance invasion effectiveness.

Ships should be set up as escorts to protect convoys during invasions.

Detailed explanation of the new requirements and strategies for executing naval invasions, including troop positioning, convoy needs, and naval supremacy.

PRC receives free troops from unspecified communists to strengthen their position before the civil war.

The Kuomintang government can launch an offensive against communist insurgents, leading to potential border war attrition.

The PRC receives free troops from unspecified communists before the civil war begins.

The Kuomintang government can launch an offensive against communist insurgents, leading to potential border war attrition.

The united China is now a more effective roadblock to Japan, with further balancing needed.

The balance of power in China has been adjusted to create a more finely balanced situation.

Nationalists can form the Chinese United Front against Japan, with options for Communist China and warlord states to join.

Communist China can annex Shanxi if they join the Chinese United Front, with player Shanxi having the option to refuse.

Mao receives the 'Cornered Fox' trait to aid in defense if a Nationalist player opts for war.

KMT forces receive a morale penalty at the start of the civil war to assist the communists.

Mao receives the 'Cornered Fox' trait to aid in defense during potential conflicts.

Nationalists can form the Chinese United Front against Japan, with options for Communist China to join.

KMT forces receive a morale penalty during the initial stages of the civil war.

United Kingdom has a wide focus tree split into 3 major parts: Rearmament, Reinforce the Empire, and Home Defense.

The United Kingdom starts as the leader of the allies with a sprawling colonial empire and the Royal Navy.

Highlights the reliance on American Sherman tanks and the development of the Centurion design.

United Kingdom starts as the leader of the allies with a sprawling colonial empire and the Royal Navy.

The focus tree is split into three major parts: Rearmament, Reinforce the Empire, and Home Defense.

Highlights the need for a well-developed air force to counter German bombers.

Focuses on preparing for war with research bonuses and conversion of civilian industry to military.

Emphasizes the need for a well-developed air force to counter German bombers.

Focuses on local defense, removing The War to End All Wars spirit, and intervention options in Scandinavia.

United Kingdom starts with three national spirits: British Stoicism, The War to End All Wars, and The King.

Details on the reliance on lend-leased American Sherman tanks and the development of the Centurion tank.

United Kingdom starts with 3 national spirits: British Stoicism, The War to End All Wars, and The King.

Includes options for buildup in Asia, developing Commonwealth nations, and fortifying the Mediterranean.

Focuses on managing the empire with options for buildup in Asia and fortifying the Mediterranean.

Focuses on preparing for war with research bonuses and conversion of civilian industry to military.

Focuses on local defense and intervention to prevent nations from joining the Axis.

Players can create offensive lines for divisions to advance along a specified axis of attack.

Players can assign divisions to a frontline, either as a whole or by selecting parts of it, necessary for making offensive plans.

Divisions can be instructed to advance along a specified axis of attack, with the ability to chain multiple lines together.

A new system allowing players to draw plans on the map which are followed by assigned divisions, with options for manual overrides.

Players can draw plans on the map for assigned divisions, allowing for high-level strategic planning and manual overrides.

A new line that allows players to set up defensive positions and manage retreats effectively.

Quick reassignment of divisions between frontlines and attack orders is now possible.

A quick method to reassign divisions between frontlines and attack orders using Control key.

Players can adjust parts of a plan easily using the new edit mode.

New command allowing armies to guard important provinces and manage home defense.

Divisions can be assigned to a frontline, necessary for making offensive plans.

Players can adjust parts of a plan easily, including changing attack axes and reshaping lines.

Longer preparation of battle plans grants advantages based on player doctrine.

New tools for planning naval and paratrooper invasions will be detailed in a future diary.

New tools for planning naval and paratrooper invasions will be introduced in future updates.

Longer preparation of battle plans grants bonuses, influenced by player doctrine and leader traits.

Allows players to set up defensive positions and control retreats effectively.

Divisions can be assigned to guard specific areas instead of frontlines.

New diplomatic actions allow players to offer occupied states to allies, providing benefits without affecting peace conference scores.

Players can set occupation policies ranging from Gentlest to Harshest, affecting resources, manpower, and resistance growth.

Each occupied state has a resistance value that grows over time, affecting supply, intel, sabotage, and attrition.

Modeling local resistance to remove whack-a-mole of rebels and address strategic problems with occupying enemy territory.

Each occupied state has a resistance value that grows over time, affecting supply, intel, sabotage, and troop attrition.

New diplomatic actions allow players to offer occupation of states to allies, providing benefits without affecting peace conference scores.

Modeling local resistance to remove whack-a-mole of rebels and address strategic problems with occupying enemy territory.

Players can set occupation policies ranging from Gentlest to Harshest, affecting resources, manpower, and resistance growth.

Players can move troops through allied nations' territories without attacking from there.

Democracies can guarantee the independence of nations, calling them into war for protection, with costs increasing with more guarantees.

Players can create their own factions independent of ideologies, with special rules based on the creator's ideology.

The game has officially entered Beta testing phase.

Players can create their own factions, breaking free from ideology constraints, with specific rules and bonuses based on the creator's ideology.

Control of occupied territories can be transferred to allies during wars.

Spend political power to influence the popularity of parties in other nations, aiding future coups.

Spend political power to improve relations with other nations, aiding in faction formation and trade.

The game has officially entered Beta, marking a significant milestone in development.

Various methods to assist allies or influence neutral wars.

Establishes a pact preventing war declarations for 12 months, with conditions for breaking it afterward.

Allows troop movement in another nation's territory without attacking, requiring factions for air and naval base access.

Fascists can declare wars more freely after their first declaration, while democracies face limitations based on world tension.

Establish non-aggression pacts that prevent war declarations for a set period.

Players can offer to surrender after a prolonged war, with terms set by the winners, differing from unconditional surrender.

Ability to transfer control of occupied territories to allies during wars.

Players can offer to surrender after a prolonged war, with terms set by the winners.

Fascists can declare wars more freely, while democracies face restrictions based on world tension.

Spend political power and equipment to initiate a coup in a foreign nation, with outcomes influenced by various factors.

Spend political power to improve relations with other nations, aiding in faction formation and trade.

Spend political power to influence the popularity of parties in foreign nations.

New mechanics for aiding allies and influencing neutral wars.

Democracies can guarantee the independence of nations, calling them into war for protection.

Players can initiate coups in foreign nations using political power and equipment.

Japan starts with the national spirit 'State Shintoism', enhancing resistance to bombing and improving soldier morale.

Players must be cautious with their fleet, as losing it can severely impact their ability to wage war, especially against the USA.

Initiate the Chinese Border Incident focus to pressure China into handing over territory, leading to potential conflict.

Japan is introduced as a unique nation with its own focus tree and gameplay mechanics.

Players can choose between Nanshin-ron and Hokushin-ron for expansion strategies, affecting diplomatic focuses and war goals.

Japan will struggle for resources if expansions are not successful, emphasizing the importance of strategic planning.

Japan can unlock the unique Long Lance torpedo, providing greater range than other nations.

The focus tree includes 'Spiritual mobilization' which unlocks kamikaze missions and special rocket powered suicide crafts (MXY7 Ohka).

Japan's focus tree introduces unique paths for expansion, including Nanshin-ron and Hokushin-ron.

Unlocks additional research options and improves soldier morale, including kamikaze missions and special rocket-powered crafts.

Japan's army is large but requires modernization, presenting a gameplay challenge for players.

Japan has one of the world's most powerful navies and a strong air force, with specific bonuses for developing superheavy battleships and Long Lance torpedoes.

Japan starts with the national spirit 'State Shintoism' which increases resistance to bombing and improves soldier morale.

Generals and Field Marshals can be assigned to armies, each with unique traits that enhance division capabilities.

New organizational structures for military units, including Armies and Theatres, allowing for better management of divisions.

Detailed list of traits for Generals that provide various combat bonuses, such as increased attack and movement speed in specific terrains.

New traits for field marshals that improve supply consumption, combat width, entrenchment, planning speed, and morale.

List of traits for Field Marshals that affect supply consumption, combat width, and entrenchment.

Armies can be formed from divisions and organized into Theatres for better management and reinforcement prioritization.

Introduction of various traits for generals that enhance division capabilities in different scenarios.

Introduced a graphical indication for World Tension, along with a detailed window to view and sort active impacts.

Changed the State mapmode to colorize states based on their region types.

Completely revised how factory slots are allocated, simplifying the previous system of caps based on hidden formulas.

World Tension now has a graphical indication and a detailed window for viewing active impacts and sorting them.

Changed the State mapmode to colorize states based on their region types.

Completely revised how factory slots are obtained, simplifying the previous system of caps based on hidden formulas.

Each state is now set to a region type that defines the basic amount of factory slots it has.

Each state is now set to a region type that defines the basic amount of factory slots available.

Radio technology provides a +10% chance to reinforce units.

Radio technology is a prerequisite for building Signal Companies, which increase division initiative by 5%.

New technology called 'Radio' simulates the adoption of amateur radio and FM radio to reduce interference and leads to Radar Stations.

New technology called 'Radio' added, simulating the use of radio for communication and propaganda.

Radio technology provides a +10% chance to reinforce and is a prerequisite for building Signal Companies.

Signal Companies increase division initiative by 5%, improving planning speed and reinforce chance.