Arianne is an engine to develop multiplayer online games like Stendhal
GameServer is a sophisticated, game server designed for online games
A fun realistic multiplayer free-and-open-source first-person-shooter!
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Minecraft bot using php
oGame-like browser space realtime strategy game based on xNova
An OpenGL client-server game
online 4X browser game engine
Alpha One is based on Vallheru
Game engine allows you to create own MMORPG
Modular Gaming Open Source Persistent Browser Based Game Framework
Minecraft private Skin Center
An easy to use and powerful game control panel
A MMORPG Engine, written in PhP and SQL
Mafia MMORPG Browser-Based game
Hra piškvorky - Game gomoku