Perhaps most disappointing of all is the fact that, for a ruthless and malevolent overlord who cares for nothing but power and chaos, your capacity for true, genuine evil is pretty limited. Motivations aside, the nature of the quests you take on aren't that different from what a "high-fantasy hero would be up to. Yes, you can choose whether certain characters live or die, and there are a few situations that can be resolved with varying degrees of bloodshed, but the choices you make have little impact on the course of the game. Good and evil are subjective concepts, and if there are no real negative consequences, there's no way to determine if your actions qualify.
As overreaching as Overlord can be, it's still preferable for a game to try and fall a little short than for it to simply scrape by with just enough, and the game should be commended for its efforts. It's a good-looking game, and watching the minions do their stuff does provide a deviant thrill, though the shortcomings of the controls and the bad camera get in the way. Ultimately, though, Overlord just isn't evil enough to live up to its name."
Catch the full review at Gamespot.