These pages are an "unofficial manual" for HoI3. These are reference materials describing how the game works, as opposed to the Strategy guides that give players advice. Use the versioning system to help keep articles up to date.

Core Interface User Interface Diplomacy Economics Research Production Intelligence Politics Resources Gameplay Historical Start Scenarios Land combat reference Air combat reference Naval combat reference Command structure Logistics reference Puppets AI behavior Occupation policies War Goals Strategic Effects Strategic Resources Event modifiers Custom Game Mode Expeditionary Forces Victory Conditions

Statistics & charts Land units Air units Naval units Unit statistics by type Upgrades Building costs Country statistics Military leaders Ministers by country Navies by scenario Level Overview Technology Infantry technology Artillery technology Armour technology Naval technology Air technology Industry technology Secret technology Theory technology Land doctrine technology Naval doctrine technology Air doctrine technology

Traits & Modifiers Leader traits Minister traits Terrain Weather Difficulty Modifiers Combat events Practical Knowledge Stacking Limits Miscellaneous List of Allied, Axis and Comintern powers Game terminology Abbreviations Trade prices Explaining counters Provinces Cheat codes Windowed mode Hotkeys Online map Decisions Events Allied objectives