HOI4 Production Efficiency Guide
Why two countries with the same factories produce different amounts of equipment in Hearts of Iron IV: how production efficiency builds on a running line, what retention keeps when you switch, when conversion beats replacement, and the habit that quietly costs the most output.
HOI4 Resistance and Compliance Guide
How occupied territory actually works in Hearts of Iron IV: what resistance costs you, what compliance gives back, how occupation laws set both at once, and what garrisons draw from your stockpile. Includes the values the game uses at capture and the trade a harsher law makes.
HOI4 MIO Guide 2026
This plan covers how to choose Military Industrial Organization perks by equipment type, with priorities for production, combat stats, and policies. It is aimed at players who want a practical way to pick strong perks without memorizing every tree.
HOI4 Supply and Logistics Guide 2026
This guide explains how supply, logistics, and air support decide frontline strength in Hearts of Iron IV. It is for players who want to hold long fronts, push through bad terrain, and build armies that do not collapse from attrition.