A lightweight game server framework implemented with Actor Model
lua dev plugin for unreal engine 4 or 5
Ad free open source TV guide for more than 1000 channels.
Odamex is a free, cross-platform, modern client-server Doom engine
LGSL (Live Game for PHP 5.4-8+: online status for various gameservers
Arianne is an engine to develop multiplayer online games like Stendhal
The ultimate cataloguer
Full featured MUD server with all the trimmings.
A promising chess program
JavaScript framework to build game engines, games, emulators and apps
A Forge mod that implements SpongeAPI
Java Settlers
Console based rcon client for minecraft servers.
Playing Go with web-based turn-based Go server
Low-latency, high quality voice chat for gamers
A cross-platform interpreter for many point-and-click adventure games