*Dons Nomex suit*
Don't be too critical here, but check out Clash of Clans on iOS. I've been playing for a few weeks now, it's exactly this kind of game. Build your village, set up defenses, build an army, go kick other peoples' villages around (try to overwhelm the defenses they have built) and steal their resources.
The fights are somewhat simplistic, in that you don't directly control your troops, they go after targets based on their AI guidelines (think troop control in Majesty). But that's a large part of what makes it fun - you just drop your troops and hope they go after the targets you intended.
I actually posted looking to see if there were any similar games on PC, had no luck finding anything even close.