The Top 120 Multiplayer Open Source Projects

Awesome Open Source

Awesome Open Source

Combined Topics

Advertising 📦 10

Application Programming Interfaces 📦 124

Applications 📦 192

Artificial Intelligence 📦 78

Blockchain 📦 73

Build Tools 📦 113

Cloud Computing 📦 80

Code Quality 📦 28

Collaboration 📦 32

Command Line Interface 📦 49

Community 📦 83

Companies 📦 60

Compilers 📦 63

Computer Science 📦 80

Configuration Management 📦 42

Content Management 📦 175

Control Flow 📦 213

Data Formats 📦 78

Data Processing 📦 276

Data Storage 📦 135

Economics 📦 64

Frameworks 📦 215

Graphics 📦 110

Hardware 📦 152

Integrated Development Environments 📦 49

Learning Resources 📦 166

Libraries 📦 129

Lists Of Projects 📦 22

Machine Learning 📦 347

Mapping 📦 64

Marketing 📦 15

Mathematics 📦 55

Messaging 📦 98

Networking 📦 315

Operating Systems 📦 89

Operations 📦 121

Package Managers 📦 55

Programming Languages 📦 245

Runtime Environments 📦 100

Science 📦 42

Security 📦 396

Social Media 📦 27

Software Architecture 📦 72

Software Development 📦 72

Software Performance 📦 58

Software Quality 📦 133

Text Editors 📦 49

Text Processing 📦 136

User Interface 📦 330

User Interface Components 📦 514

Version Control 📦 30

Virtualization 📦 71

Web Browsers 📦 42

Web Servers 📦 26

Web User Interface 📦 210

The Top 120 Multiplayer Open Source Projects

Categories > Games > Multiplayer

Openage ⭐ 10,412

Free (as in freedom) open source clone of the Age of Empires II engine 🚀

Openrct2 ⭐ 9,639

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Craft ⭐ 8,711

A simple Minecraft clone written in C using modern OpenGL (shaders).

Trinitycore ⭐ 6,808

TrinityCore Open Source MMO Framework (master = 9.0.5.38556, 3.3.5 = 3.3.5a.12340)

Nakama ⭐ 4,871

Distributed server for social and realtime games and apps.

Agones ⭐ 3,963

Dedicated Game Server Hosting and Scaling for Multiplayer Games on Kubernetes

Game Networking Resources ⭐ 3,864

A Curated List of Game Network Programming Resources

Colyseus ⭐ 3,572

⚔ Multiplayer Framework for Node.js

Open Match ⭐ 2,272

Flexible, extensible, and scalable video game matchmaking.

Epicsurvivalgameseries ⭐ 2,226

Third-person Survival Game for Unreal Engine 4 (Sample Project)

Warzone2100 ⭐ 1,845

Command the forces of The Project in a battle to rebuild the world after mankind has been nearly destroyed by nuclear missiles. A 100% free and open source real-time strategy game for Windows, macOS, Linux, BSD+

Teeworlds ⭐ 1,621

A retro multiplayer shooter

Forgenetworkingremastered ⭐ 1,389

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.

Evennia ⭐ 1,344

Python MUD/MUX/MUSH/MU* development system

Soldat ⭐ 1,249

Soldat is a unique 2D (side-view) multiplayer action game

Magic Another Game Engine

Lance ⭐ 1,213

Multiplayer game server based on Node.JS

Veloren ⭐ 1,158

[Mirror] An open world, open source voxel RPG inspired by Dwarf Fortress and Cube World

Com.unity.multiplayer.mlapi ⭐ 1,096

A game networking framework built for the Unity Engine to abstract game networking concepts.

Ancientbeast ⭐ 938

Turn Based Strategy Game. Master your beasts! 🐺

🚀 Making multi-player gamedev simpler since 2017

Openspades ⭐ 834

Compatible client of Ace of Spades 0.75

Mtasa Blue ⭐ 812

Multi Theft Auto is a game engine that incorporates an extendable network play element into a proprietary commercial single-player game.

Gameproject3 ⭐ 736

游戏服务器框架，网络层分别用SocketAPI、Boost Asio、Libuv三种方式实现，框架内使用共享内存，无锁队列，对象池，内存池来提高服务器性能。还包含一个不断完善的Unity 3D客户端，客户端含大量完整资源，坐骑，宠物，伙伴，装备, 这些均己实现上阵和穿戴, 并可进入副本战斗，多人玩法也己实现, 持续开发中。

Open Builder ⭐ 602

Open "Minecraft-like" game with multiplayer support and Lua scripting support for the both client and server

Freeorion ⭐ 541

Source code repository of the FreeOrion project.

Source code for the Cities: Skylines Multiplayer mod (CSM)

Lasercrabs ⭐ 469

Launch your LASERCRAB at walls, ceilings, and enemy heads in this indie multiplayer shooter where "move" and "attack" are synonymous.

Multiplayer game engine/framework built using SocketCluster and Phaser

Multiplayer Fps ⭐ 459

🎮 A multiplayer first person shooter game based on Unity Game Engine

Openempire ⭐ 458

A multiplayer lockstep RTS engine compatible with the Age of Empires II Trial assets

Com.unity.multiplayer.samples.coop ⭐ 458

A small-scale cooperative game sample built on the new, Unity networking framework to teach developers about creating a similar multiplayer game.

Quilkin ⭐ 446

Quilkin is a non-transparent UDP proxy specifically designed for use with large scale multiplayer dedicated game server deployments, to ensure security, access control, telemetry data, metrics and more.

Darkest Dungeon Unity ⭐ 413

Darkest Dungeon port in Unity. Almost completely identical to the original. Platforms: PC/Android.

Rpc Websockets ⭐ 392

JSON-RPC 2.0 implementation over WebSockets for Node.js and JavaScript/TypeScript

Tetraforce ⭐ 387

GBC Zelda-inspired game with online multiplayer. Built with Godot Engine

Emptyepsilon ⭐ 351

Open source bridge simulator. Build with the SeriousProton engine.

Eureca.io ⭐ 342

eureca.io : a nodejs bidirectional RPC that can use WebSocket, WebRTC or XHR fallback as transport layers

Godot_goodies ⭐ 337

Collection of nice stuff for Godot

Setwithfriends ⭐ 332

🎮 A frictionless multiplayer web app that lets you play Set with friends

Gdk For Unity ⭐ 331

SpatialOS GDK for Unity

Yourcontrols ⭐ 331

Shared cockpit for Microsoft Flight Simulator.

Stuntrally ⭐ 326

The main repository containing Stunt Rally sources and game data. A 3D racing game based on VDrift and OGRE with track editor.

Lunamultiplayer ⭐ 290

Multiplayer mod for Kerbal Space Program (KSP)

Replicache ⭐ 285

Realtime Sync for Any Backend Stack

Coophordeshooter ⭐ 272

C++ Coop Horde Third-person Shooter for Unreal Engine 4 (Udemy Project)

Flopnite Ue4 ⭐ 270

A remake of the popular battle royale game, Fortnite, made in Unreal Engine 4 and integrated with Amazon GameLift

Colyseus Unity3d ⭐ 269

⚔ Colyseus Multiplayer SDK for Unity

Colyseus.js ⭐ 265

⚔ Colyseus Multiplayer SDK for JavaScript/TypeScript

Nakama Godot ⭐ 263

Godot client for Nakama server written in GDScript.

Nakama Unity ⭐ 240

Unity client for Nakama server.

Supermariowar ⭐ 236

A fan-made multiplayer Super Mario Bros. style deathmatch game

Warcraft Arena Unity ⭐ 236

World of Warcraft client-server combat system implementation in Unity with Photon Bolt.

Rustarok ⭐ 227

Multiplayer, fast-paced Moba style game

Scribble.rs ⭐ 226

A skribbl.io alternative - Play at https://scribblers-official.herokuapp.com/

Logisticspipes ⭐ 219

The RS485 take on LogisticsPipes -- ESTḌ 2012

Kaetram Open ⭐ 218

Kaetram is an open-source 2D HTML5 MMORPG. It is an extended version of BrowserQuest (BQ).

3D multi-player tank battle game

Multiplayer ⭐ 213

Zetrith's Multiplayer mod for RimWorld

Ezyfox Server ⭐ 210

a socket server (include SSL) supports for realtime game, MMORPG, message, chat and streaming data with tcp, udp and websocket

PyDark is a 2D and Online Multiplayer video game framework written on-top of Python and PyGame.

Drawphone ⭐ 201

Draw what you see, and guess what your friends drew

Arenagame ⭐ 199

A Unity First Person Shooter game made with Forge networking as an example project.

💪 SEGS - Super Entity Game Server

Piano Rs ⭐ 184

A multiplayer piano using UDP sockets that can be played using computer keyboard, in the terminal

Rhubarb ⭐ 175

A WebSocket library optimized for multiplayer JS games, works on WebWorkers with binary data.

The Open-Source IO Shooter is an open-source multiplayer game in the browser

Unity Fastpacedmultiplayer ⭐ 172

Features a Networking Framework to be used on top of Unity Networking, in order to implement an Authoritative Server with Lag Compensation, Client-Side Prediction/Server Reconciliation and Entity Interpolation

Mrboom Libretro ⭐ 167

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

Magicallife ⭐ 157

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

Inexor Core ⭐ 156

UNMAINTAINED: Please have a look at the entity-system

Reldens ⭐ 152

Reldens - You can make it - Open Source MMORPG Platform

Gdk For Unity Fps Starter Project ⭐ 148

SpatialOS GDK for Unity FPS Starter Project

Broken_seals ⭐ 146

An open source third person action RPG with multiplayer support.

Ore Infinium ⭐ 145

Ore Infinium, Open Source multiplayer Terraria-inspired Sci-fi game, focused on technology, devices and researching. Written in Kotlin (JVM), LibGDX. Cross platform

Openmmo ⭐ 129

OpenMMO - Groundwork

Phaser3 Multiplayer With Physics ⭐ 127

Phaser 3 - Real-Time Multiplayer example with Physics (MatterJS and Arcade)

Betterspades ⭐ 126

BetterSpades, an Ace of Spades client targeted at low end systems (GL/ES 1.1). Runs on your grandmother's rig!

Socketpeer ⭐ 117

simple real-time messaging using WebRTC Data Channels and WebSockets

Colyseus Examples ⭐ 114

Colyseus Game Server examples for learning purposes

Openaudiomc ⭐ 108

A real time web client for minecraft to play and manage sounds, game notifications and much more. This project includes the plugin (bungee + spigot + velocity), common java library, web client and build scripts.

Arkit Multiplayer ⭐ 106

ARKit multiplayer experience explanation & example

Micro Racing ⭐ 105

🚗 🏎️ 🎮 online 3D multiplayer neural networks based racing game

Entitas Sync Framework ⭐ 104

Networking framework for Entitas ECS. Targeted at turnbased games or other slow-paced genres.

Blind Jump Portable ⭐ 104

Action/adventure game for the Nintendo GameBoy Advance and Sony PSP

Nodegame ⭐ 98

Complete nodegame repository with examples and documentation

Unityprojectcloner ⭐ 98

A tool to let the user to create a duplicate project that links back to the original, for multiplayer testing

Toast Haste.framework ⭐ 97

TOAST Haste framework is a pure java implementation of asynchronous game server framework

Swiftcode ⭐ 83

Multiplayer, interactive, realtime typing speed game

FCNPC - Fully Controllable NPC

YSF Server Functions

Fishgame Macroquad ⭐ 81

"Fish Game" for Macroquad is an online multiplayer game, created as a demonstration of Nakama, an open-source scalable game server, using Rust-lang and the Macroquad game engine.

A libre multiplayer FPS game created in Godot Engine

Unet Controller ⭐ 75

A CharacterController based controller for Unity's new Networking system

Janus Server ⭐ 73

JanusVR Presence Server

Gophergameserver ⭐ 71

🏆 Feature packed, easy-to-use game server API for Go back-ends and Javascript clients. Tutorials and examples included!

Timeline ⭐ 64

Timelines implementation for lag compensation techniques in networked games

Colyseus Tic Tac Toe ⭐ 61

Turn-based multiplayer example powered by Colyseus

Kiss Multiplayer ⭐ 60

Multiplayer mod for BeamNG.drive

Open Samp Api ⭐ 58

An open source API for GTA SA:MP

1-100 of 120 projects

Advertising 📦 10

Application Programming Interfaces 📦 124

Applications 📦 192

Artificial Intelligence 📦 78

Blockchain 📦 73

Build Tools 📦 113

Cloud Computing 📦 80

Code Quality 📦 28

Collaboration 📦 32

Command Line Interface 📦 49

Community 📦 83

Companies 📦 60

Compilers 📦 63

Computer Science 📦 80

Configuration Management 📦 42

Content Management 📦 175

Control Flow 📦 213

Data Formats 📦 78

Data Processing 📦 276

Data Storage 📦 135

Economics 📦 64

Frameworks 📦 215

Graphics 📦 110

Hardware 📦 152

Integrated Development Environments 📦 49

Learning Resources 📦 166

Libraries 📦 129

Lists Of Projects 📦 22

Machine Learning 📦 347

Mapping 📦 64

Marketing 📦 15

Mathematics 📦 55

Messaging 📦 98

Networking 📦 315

Operating Systems 📦 89

Operations 📦 121

Package Managers 📦 55

Programming Languages 📦 245

Runtime Environments 📦 100

Science 📦 42

Security 📦 396

Social Media 📦 27

Software Architecture 📦 72

Software Development 📦 72

Software Performance 📦 58

Software Quality 📦 133

Text Editors 📦 49

Text Processing 📦 136

User Interface 📦 330

User Interface Components 📦 514

Version Control 📦 30

Virtualization 📦 71

Web Browsers 📦 42

Web Servers 📦 26

Web User Interface 📦 210