Hearts of Iron IV: The Great War, an overhaul mod for HOIIV, puts you in the position of one of the countries of the world in World War One's time period. Imperial Germany and Austria Hungary battles for imperialism and territories against France, The United Kingdom and Russia. As the timeline proceeds, the war will escalate into the Ottoman Empire and the Middle East. The Soviet Union will see its birth and the world is turned upside down.

The Great War Mod can be downloaded from the Steam Workshop. Its definitely worth a try as it is very well made!

This WWI timelapse has been simulated by AI in the video game Hearts of Iron IV by Paradox Interactive.

All DLC are installed:

La Resistance
Waking the Tiger
Man the Guns
Together for Victory
Death or Dishonor