Talk:Ainz Ooal Gown/Abilities and Powers/@comment-122.169.15.0-20180731124314/@comment-45.56.46.26-20180731143644

Yggdrasil is basically an amped-up to eleven version of D&D in a home-brew setting based on mixed mythologies from around the world but embedded in a Nordic flavor context.

The New World is an original setting which runs mostly on Yggdrasil rules but with significant expansions.

You could make an "Overlord" server using a version of Neverwinter Nights or some other builder/modder friendly D&D based game engine. There is also an official Overlord smartphone game, Mass for the Dead.