1.18|Apr 22, 2026
View on Steam↗Hearts of Iron IV 1.18: Czechoslovakia DLC
3/5 Moderate
Peace for Our Time adds a Czechoslovakia focus tree and new national mechanics, while the 1.18 release also brings gameplay changes and AI adjustments.
Key Changes
- 1The Peace for Our Time DLC adds a Czechoslovakia focus tree with monarchist, fascist, communist and democratic branches.
- 2Czechoslovakia gains Army Readiness, an industry focus interface and Divided Nation decisions in the DLC.
- 3Outside the Peace for Our Time DLC, Czechoslovakia gains the democratic focus Healing a Divided Nation.
- 4A DLC Special Project and related technology make forts easier to destroy.
- 5German AI changes how it responds to a strong Czechoslovak faction, delaying action on a war goal until after August 1939.
- 6Fascist Germany's integration event no longer annexes Czechoslovakia when it refuses.
All Changes
🕊️Peace for Our Time DLC(12)
- newCzechoslovakia: Czechoslovakia gains a focus tree with democratic, communist, monarchist, fascist and shared paths, including options for alliances, territorial ambitions and fortifications.
- newCzechoslovakia: Czechoslovakia can prioritize armaments sectors through an Industry focus GUI, with focuses strengthening boosts and priorities unlocking certain focuses.
- newArmy Readiness: The Army Readiness Balance of Power lets Czechoslovakia weigh military readiness against industrial benefits.
- changeDivided Nation: Divided Nation decisions let Czechoslovakia alleviate societal stresses by investing in education and industry in underemphasized areas.
- newSlovakia: Slovakia gains new generals and country leaders with unique portraits and two new start-date National Spirits.
- changeCzechoslovakia: Over 60 Czechoslovak equipment icons have been reworked.
- newGermany: Germany gains a national focus that provides Czech-related MIOs and Concerns.
- newThe DLC adds 2 Landmarks, 2 music tracks and 2 3D unit models, including a Slovak model.
- newA new Special Project and related technology make it easier to destroy forts.
- newGermany: Germany gains 1 new Paratrooper Raid.
- newPoland, Austria, Ethiopia, Hungary and Slovakia can access certain Czech MIOs and Concerns if conditions are met.
- newHungary: Hungary can conduct a border war with Slovakia if circumstances permit.
⚔️Gameplay(14)
- newHealing a Divided Nation: Czechoslovakia gains the democratic focus Healing a Divided Nation.
- newCzechoslovakia: Czechoslovakia gains 4 Political Advisors and 1 Naval Commander.
- newRinghoffer-Tatra: With LaR, Czechoslovakia gains the Ringhoffer-Tatra Armored Car MIO/Concern.
- newPraga Aviation: With GD, Czechoslovakia gains the Praga Aviation helicopter MIO/Concern.
- newSouth Sudetenland: South Sudetenland gains a dam at the start date.
- newAlois Vicherek: Alois Vicherek gains a Chief of Air Force role.
- newCzechoslovakia: Czechoslovakia can release Slovakia during a brief window after game start.
- newBranná moc Slovenskej: Slovakia starts with the Branná moc Slovenskej National Spirit.
- newThe Fate of Czechoslovakia: Germany can use The Fate of Czechoslovakia event to establish both the Protektorat of Bohmen-Mahren and Slovakia as puppets.
- changeBohmen Protectorate: Bohmen Protectorate exists at the start of the 1939 start date.
- newProtektorat Bohmen-Mahren: Protektorat Bohmen-Mahren gains various Czech Concerns and MIOs and 2 generals.
- newRomania: When Germany completes Demand Sudetenland, Romania gets an event offering a chance to revoke its guarantee on Czechoslovakia in a majority of circumstances.
- newCKD-Praga: With BBA, Ethiopia gains CKD-Praga as an Aircraft Designer Concern.
- newBelgium: With GD, Belgium gains a new Industrial Concern.
⚙️Adjustments(7)
- changeCKD-Praga: CKD-Praga is now a Multi-Role Aircraft Designer.
- changeSkoda Armor: Skoda Armor is now a Standardized Production Designer.
- changeAero: Aero is now a CAS Aircraft designer.
- changeCzechoslovakia: Czechoslovakia's starting naval advisors have been replaced with figures historically linked to the Czech Army’s Naval forces.
- change1 military factory has moved from Bohemia to Czeske Slezsko.
- changeCzechoslovakia: Czechoslovakia's starting political party popularity and some national spirit modifiers have been adjusted.
- newEdvard Benes: Edvard Benes gains the De facto Leader country leader trait.
🤖AI(7)
- changeGermany: Fascist Germany's AI is more likely to seek a Soviet alliance when facing a very strong Little Entente.
- changeGermany: When stalled in a war with Czechoslovakia, German AI is more inclined to attack defenses in South Sudetenland and Western Slovakia under certain circumstances.
- changeGermany: German AI should avoid demanding Slovenia or the Sudetenland when outnumbered by the Yugoslav or Czech faction until it gains allies or a competitive army.
- changeGermany: German AI delays acting on a war goal against Czechoslovakia until after August 1939 if it considers Czechoslovakia's faction relatively strong.
- changeGermany: Fascist Germany's AI is less inclined to ally with fascist Czechoslovakia solely because of its ideology.
- changeFrance and England are less likely to guarantee Czechoslovakia again if they previously abandoned it during the Munich Conference.
- changeCzechoslovakia: After Keep the Focus on Weapon Exports, Czech AI is more willing to license equipment to specified historical customers and sufficiently favored countries sharing its ideology.
🎨Graphics(4)
- newCzechoslovakia: Czechoslovakia gains unique medals.
- newCzechoslovakia: With LaR, Czechoslovakia gains a unique spy agency icon.
- changeDemand Slovenia: Germany's Demand Slovenia focus gains a new icon.
- changeSeveral Spain- and Yugoslavia-related focus icons have been improved.
🐛Bug Fixes(2)
- fixCzechoslovakia: Fascist Germany's event to integrate Czechoslovakia no longer annexes it if Czechoslovakia refuses.
- fixSlovakia: The USSR can no longer cede Slovakia when it belongs to a faction member while ceding Western Poland to Germany under Molotov-Ribbentrop.
Summary
Peace for Our Time DLC
Czechoslovakia gains political paths, army readiness and industry mechanics, and Divided Nation decisions. The DLC also adds Slovak leaders, a German focus, a fort-destroying Special Project and other content.
Gameplay and AI
Non-DLC gameplay additions include a Czechoslovak democratic focus, advisors and diplomatic options. Designer roles, starting conditions and German, Czech, French and English AI behavior have also been adjusted.
Bug fixes
Integration and territorial-transfer fixes prevent Germany from annexing a refusing Czechoslovakia and the USSR from ceding a faction member's Slovakia in the specified circumstances.