Numerous other versions were created over the next decade for various computer types, including KSU Empire, Xerox Development Environment (XDE) Empire on Xerox computer workstations, PC Empire by Gordon Storga for DOS, Amiga Empire for the Amiga, and Wolfpack Empire.
Over the following decade, numerous variations of this software were created to work with different computers, such as KSU Empire, XDE Empire on Xerox machines, PC Empire by Gordon Storga for DOS systems, Amiga Empire for Amiga computers, and Wolfpack Empire.