Memory Efficient Serialization Library
Pterodactyl® is a free, open-source game server management panel
The macOS & iOS file archiver
Java/JavaFX/Kotlin Game Library (Engine)
ThinkPHP Framework
An asynchronous event driven PHP socket framework
RPG Maker 2000/2003 and EasyRPG games interpreter
Naev is a 2d action/rpg space game, action, rpg and simulation
Azuriom is a complete open-source web solution for game servers
Self-hosted CMS platform based on the Laravel PHP Framework
Dscover bugs in your code without running it!
Arianne is an engine to develop multiplayer online games like Stendhal
Cooperative multiplayer graphical RPG and adventure game
A fantasy roguelike game with graphics tiles.
A simple pen- and-paper RPG
Web application brings custom skins back in offline Minecraft servers
Action RPG that's easy to mod
GemRB is a portable open-source implementation of the Infinity Engine
Game engine to build text adventures.
A standalone UQM mod made to enhance gameplay and visuals
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Final Fantasy VIII Save Editor