Arianne is an engine to develop multiplayer online games like Stendhal
Dark Age of Camelot server emulator
Anarchy Online Emulator
plugin-based RPG manager in C++ and Qt5
Star Trek Web browser game
The IRC's Talking Robot
EPIC is an indepth Multiplayer Strategy RPG Web Game
The SCND Genesis: Legends
Greasemonkey Tool to keep Stats of Hentaiverse.org Game
War of Respect is an online turn-based MMORPG in 2D-anime style.
Blightscape is a Private server for runescape
Free MMORPG Engine. Develop and host graphical browser-based games.