love coop hotseat, wish they would make a new civ that was titled "Civilization- Everybody wants to rule the World" and make challenging military ai that knows what the victory conditions are (only domination and conquest) and can actually take cities unlike the previous 3 games (civ 5, 6, and 7) that take a step back in military ai. Civ 4 doesn't have great ai by any means, but it is better than the newer ones.
