Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software

In short, Forge Networking is a free and open source multiplayer game (multi-user) networking system that has a very good integration with the Unity game engine. You wanna make a multiplayer game or real time multi-user application? This is the library for you.

Turn Based Strategy Game. Master your beasts! 🐺

Compatible client of Ace of Spades 0.75

A 2D online multiplayer game taking place in a submarine travelling through the icy depths of Jupiter's moon Europa.

Archived repository. For current repo, see: https://github.com/etlegacy/etlegacy

🎶 The ultimate community-driven, and open-source competitive rhythm game.

Very basic multiplayer online game example made with Phaser, Node.js and Socket.io

This project has been sunset as of 1st Jan 2018 and is no longer supported or maintained

A simple full-stack game sample using GameLift and AWS services.

Mr.Boom is an 8 player Bomberman clone for RetroArch/Libretro

ET: Legacy is an open source project based on the code of Wolfenstein: Enemy Territory which was released in 2010 under the terms of the GPLv3 license.

A 2d game that aspires to be similar to Rimworld, with more depth, magic, and RPG concepts.

A little library to let you make multiplayer games easily with Haxe. No longer maintained - better options are available.

Reldens - You can make it - Open Source MMORPG Platform

AssaultCube Reloaded (first-person-shooter game)

A Node UDP client and telemetry parser for Codemaster's Formula 1 series of games

A multiplayer game (Bomberman-like) using Serverless concepts

Unity制作的多人在线的第三人称策略类射击游戏 ，服务端实现怪物寻路，服务端由python 实现。 （服务端没有用任何python第三方库）

💥 A multiplayer online 3D game about racing 💥

A 2D multiplayer sandbox game.

A multiplayer ship game built with Elixir, Phoenix Framework and Phaser. 🚀

A Universal Deep Reinforcement Learning Framework

A Cards Against Humanity clone for LAN play. Works on desktop and mobile. Supports custom cards in multiple languages.

Multiplayer BabylonJS game with Server and Client-Side physics engine synchronization

Git repo and bug tracker for SkyOfSteel

Connect your games P2P over steam. This game introduces Unreal's Online Sub-System (OSS) and shows you how to use it with the Steamworks API. By the end of the section, you will be able to connect player through Steam lobbies. (ref:SM_UEM) http://gdev.tv/uemgithub

Bomberman with multiplayer

WTF?! Adventure is a massively online 2D MMORPG with WTF?! twists.