Instructions
Install both "Caesar II" and DOSBox. You can get DOSBox from its official website. (See Resources.)
Open DOSBox and type "mount c x," replacing "x" with the installation path you chose for "Caesar II." Press "Enter."
Type "c:" into the field. Press "Enter."
Type "call c2.bat" into the field. Press "Enter."
Press "Space" to run the game. The game will launch and you can battle opponents, playing the game as normal.