File: - Hearts.of.iron.iv.v1.12.4.incl.all.dlc.zi...

: Introduces espionage, resistance mechanics, and focus trees for France, Spain, and Portugal.

: Significant shifts in how aircraft are built, moving costs from airframes to engines. Included DLCs (By Release Order) File: Hearts.of.Iron.IV.v1.12.4.Incl.ALL.DLC.zi...

: Improvements to how territory is partitioned after wars, including better AI decision-making. : Introduces espionage

: Major overhaul for the Soviet Union and supply mechanics. and focus trees for France

: Updates to how combat width and division stats are calculated.

: Adjustments to national focus trees and general gameplay mechanics.