Evilot

Evilot is a defense game, where you play as Count Dolfus, a retired evil mastermind that just wants to spend his last days in peace. The problem is that the small retirement fund you’ve managed to amass, over decades of evildoing, is too tempting a prize for the heroes and adventurers running through the Kingdom of Evilot, so you’ll have prepare your defenses to withstand their fierce attack. Source: The Developer Website.