Open Source Virtual World and MMOG Development Platform
3D Client (Windows), Server, and Tools to easily create massively multiplayer games and virtual worlds.
If you want to contribute to the source code please go to https://github.com/multiversemmo/MultiversePlatform
Mepper is a general purpose 2D tile-based game map editor. It supports several types of game maps. Mepper supports read/write map/resource using plugins, transit terrain automatically. Proposals/bugs please visit: http://groups.google.com/group/mepper