Any good open source online RPG starter kit for development?

Does anyone know of a good open source toolkit that allows level designer and graphic designer or someone with basic programming experience to create multiplayer online Role Playing Game ? The game can be a simple 2D interface in a 2d virtual world.

I know Microsoft have a starter kit something like the following :

http://creators.xna.com/en-US/starterkit/roleplayinggame

that allows developer to create RPG game running on XBox pl开发者_开发知识库atform but i am looking more on multiplayer role playing game on the web platform where player can play directly with their browser.

regards Andrew

Tried these??...

• RPG MAKER for XP

  http://tkool.jp/products/rpgxp/eng/

• ECLIPSE MMORPG creator

  http://www.freemmorpgmaker.com/index.php

Also as a stand-alone game developer (which i presume you are) i would suggest You go through these for a good grasp of the challenges ahead:

• Game Development & Production

• Game Developer's Open Source Handbook

UPDATE: You might be interested in Quake-Live

For a few sample of Quake Live on Youtube:

http://www.youtube.com/results?search_query=quake+live+demo&aq=f

RPG Toolkit seems to be a good one too

For 2D single-player:

http://rpgjs.com/

For 2D MMO:

http://browserquest.mozilla.org/

Unity3D is free for you to develop games for the web (and desktop I think), you can later upgrade your account in order to deploy your game into more platforms. Really easy to use and the programing is friendly enough for you to learn (lots of tutorials everywhere).

Pokemon Essentials is good for pokemon games, but I have used it for many other RPG games. https://www.youtube.com/watch?v=mlnzaEhH5cI <-- It's in the description