Board Thread:News and Announcements/@comment-25401994-20150610145921/@comment-26501532-20150717141645

As far as I know, there would be 13 episodes of Overlord, acompanied with 6 episodes of ova with an unknown duration. Also it is seen in the trailer that there will at least be one army war in the anime, unless the producers are just teasing us with the trailers.