A fast, scalable, distributed game server engine/framework for C++
oGame-like browser space realtime strategy game based on xNova
Text Browser-Based MMO is a project with with forum integration.
MMO Exitium
Massively multiplayer online game server and client framework
Character optimizer for the MMO.
Text Surgery Simulator game, taken from MMO Growtopia by RT Soft
MMOG Framework. Starting place to build a game.
PHP & MySQL MMO RTS Engine and Learning Tool
Top-down multi-player zombie survival game
Speed up your Tanki Online gameplay by up to tenfold.
An MMO that allows players to earn DogeCoin!
Webgl Engine
Open Source fishing bot for the MMO World of Warcraft