A lightweight game server framework implemented with Actor Model
Fast, user-friendly cross-platform custom launcher for Minecraft
Full featured MUD server with all the trimmings.
The ultimate cataloguer
JavaScript framework to build game engines, games, emulators and apps
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
The multiplayer game engine
A Rust framework for building Minecraft servers
Java Settlers
Playing Go with web-based turn-based Go server
Cosmos Tycoon is a open source transport simulation browser game.
Online Freecell based on html5/canvas
3D .NET engine for Windows, Linux, Mac
Simple, easy to use, SRCDS RCON tool.