> I've been playing a game called Old World, which is basically Civ with decent UI and AI. The UI is intuitive and uses a nested tooltip system similar to Crusader Kings 3. The AI is pretty decent at war, it will flank you, use its strengths against your weaknesses, and will retreat to heal units that you don't finish off instead of fighting unwinnable battles.

Civ also does everything you mentioned - ie their units will flank and retreat. Is the AI markedly better than Civ?