The Helios Project is a Ragnarok Online emulator. Unlike most emulators, this one is from scratch, uses multi/single server exes, the Lua scripting engine, and many more features.
Moloch is a Multi User Dungeon game, written in C++ and scripted in Lua. It will support multi-server distribution and web-based account administration. We are also going to write an user interface for win32, gtk+ and ncurses.