Centurion: Defender of Rome is a strategy game developed by Bits of Magic and published by Electronic Arts. Initially released for PC in 1990, it was ported to Amiga and SEGA Genesis in 1991.
Designed by Kelly Beck, known for his masterpiece Defender of the Crown, Centurion has several elements in common with Cinemaware's first title.
As you can immagine, the goal is to become the Caesar, expanding and managing the Roman empire. From the map view you can take strategic decision, move troops, raise taxes, organize games to keep people happy. This happens in a turn-based mode, unlike battles, that happen in real time. If you have played Rome: Total War, you know what I mean.
But Centurion is not just war. You can try to convince provinces to join you with diplomacy. Mini game are also fun: chariot racing in the Circus Maximus, naval battles and gladiatorial combat (the author was inspired by Ben Hur and Spartacus) are represented as action games. It's amazing how rich is this historical simulation.
It might be less popular than Defender of the Crown, but if you love strategy, Centurion is a game you cannot miss.