SDL Framework (SDLFW)
SDLFW is a cross-platform framework from the powerful SDL library to create your own 2D games with the Lua programming language.
It's easy-to-use, free, open-source, and works on Windows and Linux.
SwingKore. Under development. Visual Plugin for OpenKore, writtin in Java 5. It will clone Ragnarok Client windows. Simmilar to VisualKore and Revemu, but OpenSource. It works by Client & Server system. Home: http://www.levelbot.org/