《钢铁雄心4》是策略神作《钢铁雄心》系列续作，新作的AI将会更加强大，使用了用处更广的新货币。选择一个好的领导人和政府对国家的发展是至关重要的，玩家还可以选择公司来帮助提升装备和物资的生产。

• Hearts of Iron IV: German Historical Portraits

• Hearts of Iron IV: Poland – United and Ready

• Hearts of Iron IV: Rocket Launcher Unit Pack

• Hearts of Iron IV: Heavy Cruisers Unit Pack

• Hearts of Iron IV: Soviet Tanks Unit Pack

• Hearts of Iron IV: German Tanks Pack

• Hearts of Iron IV: French Tanks Pack

• Hearts of Iron IV: British Tanks Unit Pack

• Hearts of Iron IV: US Tanks Unit Pack

• Hearts of Iron IV: German March Order Music Pack

• Hearts of Iron IV: Allied Radio Music Pack

• Hearts of Iron IV: Sabaton Soundtrack

• Hearts of Iron IV: Wallpaper

• Hearts of Iron IV: Together for Victory

• Hearts of Iron IV: Sabaton Soundtrack Vol. 2

• Hearts of Iron IV: Death or Dishonor

• Hearts of Iron IV: Anniversary Pack

• Hearts of Iron IV: Waking the Tiger

• Hearts of Iron IV: Man the Guns

• Hearts of Iron IV: Man the Guns Wallpaper (Pre-Order)

• Hearts of Iron IV: Axis Armor Pack

• Hearts of Iron IV: Radio Pack

• Hearts of Iron IV: La Resistance Pre-Order Bonus

• Hearts of Iron IV: La R‚sistance

• Hearts of Iron IV: Allied Armor Pack

• Hearts of Iron IV: Allied Speeches Music Pack

• Hearts of Iron IV: Battle for the Bosporus

• Hearts of Iron IV: Eastern Front Planes Pack

• Hearts of Iron IV: Eastern Front Music Pack

• Hearts of Iron IV: No Step Back

• Hearts of Iron IV: No Step Back – “Katyusha” (Pre-Order Bonus)