From Pokemon to Starcraft to Left4Dead2, I love games that give me the feel of being a moderately healthy or powerful individual as far as personal traits go, but with the exceptional power to summon vast legions of aliens, robots, and undead, or just a handful of Godlike monsters.

I fantasize about a game that is a cross between this and minecraft or The Elder Scrolls, where as a lone individual I can craft a entire dimension, perhaps as a chaos god like Sheogorath or Slaanesh, and decorate my demon planets with corpses strewn along castle walls. All the while summoning swarms to slay my enemies and take over new worlds.
I like the idea of programing different armies so optionally, cutscenes can be more humane or graphic.