In 1991 an expansion set (for computers only) was released that changed the setting from the conquest of a medieval kingdom, to World War I. The gameplay was still essentially the same, but with more ranged weapons and war-machines.
In the game Wild West World, you must build an economic empire during the Wild West. Buy farms and ranches and try and drive your competition out of business by whatever means possible.
The computer game version GMT Games' boardgame SPQR (Senātus Populusque Rōmānus) and several SPQR scenario packs. It is a turn-based tactical wargame that includes eleven battles of the Second Punic War pitting Rome versus Carthage.