Hey I am new at this site. I really love this I am finding so much info about games and stuff. After reading this post I remember a full framework i once found for creating your own mmorpg. Its so cool you even have character costumization a client and a server you can extend. WTH its all opensource i remember. I found it in Wikipedia. It really great if you would like to build up from scratch. You can import heightmaps and alot of things. It wass a while back i used it its probably updated now. http://www.multiversemmo.com/ Its awsome.