DOS Games made for DOS require an emulator to run on Windows. Use DOSBox or a frontend like D-Fend Reloaded and read this guide to play DOS games on your Windows PC.
In 1991 an expansion disk (for computers only) was released that changed the setting from the conquest of a medieval kingdom, to World War I. The game play was still essentially the same, but with more ranged weapons and war-machines.
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