Overlord was a quirky game, mixing humor with fantasy elements, and all from the perspective of the bad guys. The sequel, Overlord II, is coming later this month. The demo is up on Xbox Live now, and you can queue it up here. No word yet on PC or PSN demos, but we expect them soon.
I know Kat is looking forward to this one, and we're all interested to see how the co-op is handled. Hopefully, after playing the demo, all will be made clear!
Source: Destructoid.com