When attacking a city that's hostile to you, and losing, having the game autosave it right there so there's no way of recovering that particular savegame is kind of annoying. Unless you can flee and I just haven't figured out how yet.
Every month or so, I come back to play again, hoping I've forgotten the solutions. And every month, I can't help but recall a little bit more than I did last time.
I want a sequel!