I play almost entirely SP and have for years.
I was burned out on MP before the game was even released.
I prefer more More MORE type mods for SP.
SingleAge (makes all nations of all 3 eras available at the same time)
Mytheology and Immortal Pretenders and Nova Deus (more gods)
Worthy Heroes and Epic Heroes (more heroes)
CPCS (more spells)
the Magic Sites mod (more sites)
Elemental End Game and End Game Mod (more bigger monsters)
And then maybe fill the nation slots from 73-95 with modded nations.
And then run the map thru the SemiRand program so that the AI is smarter and there are surprise sites to find.
And then create random alliances between the AIs
AND THEN MAYBE RUN IT THRU THE CHAOS PROGRAM MUHAhahahahahaa!
(Total random insanity, take nothing for granted)
Other than that there are game settings which tend to improve the AIs.
And there are maps which are designed to improve the AIs
If you want to try SemiRand, or Chaos, or an old CBM then you can try one of the always open games on my system. The ones with AIs can be played solo.
Or one of my downloadable maps that have been run thru the programs.
www.Dom3Minions.com
Gandalf Parker