- Byzantium is one of the ten new civilizations.
- One of the historical scenarios is Charlemagne's wars of conquest.
- Final Frontier is a space-based scenario where you build space stations and colonize planets.
- New units include mobile artillery, mobile SAM launchers, tactical nukes that are not as powerful but a lot quicker to make than ICBMs, and paratroops.
- All of your espionage points go into a pool, and you can then open up the new espionage screen to use those points to spy or conduct espionage missions. This can range from sabotaging buildings, poisoning water, or fomenting unhappiness. There are still spy units (including ninjas, which are the early-game spies), but their role is a bit different from before. Spies are now invisible to all units, save for other spies. But there's also a new "great spy" unit, which has abilities just like the other great leaders, and these are totally invisible, even to other spies.
- Corporation works like religions in that you spread your corporations by dispatching "suits" to other cities.
- There are more than 100 random events. So natural disasters such as earthquakes can destroy buildings or diplomatic marriages might suddenly turn two rivals into friends.
You can discuss this article here. Thanks Methos for the nice find!