Blue Necropolis on a Small Map in the Underground - not ideal.
Thanks for the game.
I made a mistake with the build order; Necropolis is weak on a Small Map. I took two restarts, on the third I built strong defenses on the road and one path to the surface via the wilderness, and emerged right at the main opponent's Fortress. I spent three days traveling through the desert to reach the Fortress and win. Thanks for the game.