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The Top 1,176 Multiplayer Open Source Projects on Github

Categories > Games > Multiplayer
Openage ⭐ 10,711
Free (as in freedom) open source clone of the Age of Empires II engine 🚀
Openrct2 ⭐ 10,193
An open source re-implementation of RollerCoaster Tycoon 2 🎢
Boardgame.io ⭐ 8,965
State Management and Multiplayer Networking for Turn-Based Games
Craft ⭐ 8,961
A simple Minecraft clone written in C using modern OpenGL (shaders).
Trinitycore ⭐ 7,134
TrinityCore Open Source MMO Framework (master = 9.1.5.41793, 3.3.5 = 3.3.5a.12340)
Nakama ⭐ 5,405
Distributed server for social and realtime games and apps.
Agones ⭐ 4,314
Dedicated Game Server Hosting and Scaling for Multiplayer Games on Kubernetes
Game Networking Resources ⭐ 4,291
A Curated List of Game Network Programming Resources
Colyseus ⭐ 3,854
⚔ Multiplayer Framework for Node.js
Open Match ⭐ 2,433
Flexible, extensible, and scalable video game matchmaking.
Epicsurvivalgame ⭐ 2,417
Third-person Survival Game for Unreal Engine 4 (Sample Project)
Warzone2100 ⭐ 2,143
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 ⭐ 1,810
A retro multiplayer shooter
Veloren ⭐ 1,773
[Mirror] An open world, open source voxel RPG inspired by Dwarf Fortress and Cube World
Evennia ⭐ 1,425
Python MUD/MUX/MUSH/MU* development system
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.
Com.unity.netcode.gameobjects ⭐ 1,349
Netcode for GameObjects is a high-level netcode SDK that provides networking capabilities to GameObject/MonoBehaviour workflows within Unity and sits on top of underlying transport layer.
Mage ⭐ 1,294
Magic Another Game Engine
Soldat ⭐ 1,292
Soldat is a unique 2D (side-view) multiplayer action game
Lance ⭐ 1,169
Multiplayer game server based on Node.JS
Ancientbeast ⭐ 996
Turn Based Strategy Game. Master your beasts! 🐺
Mtasa Blue ⭐ 908
Multi Theft Auto is a game engine that incorporates an extendable network play element into a proprietary commercial single-player game.
Openspades ⭐ 884
Compatible client of Ace of Spades 0.75
Librg ⭐ 861
🚀 Making multi-player gamedev simpler since 2017
Gameproject3 ⭐ 836
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。
Quilkin ⭐ 742
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.
Freeorion ⭐ 630
Source code repository of the FreeOrion project.
Com.unity.multiplayer.samples.coop ⭐ 622
A small-scale cooperative game sample built on the new, Unity networking framework to teach developers about creating a similar multiplayer game.
Open Builder ⭐ 591
Open "Minecraft-like" game with multiplayer support and Lua scripting support for the both client and server
Csm ⭐ 521
Source code for the Cities: Skylines Multiplayer mod (CSM)
Replicache ⭐ 515
Realtime Sync for Any Backend Stack
Multiplayer Fps ⭐ 498
🎮 A multiplayer first person shooter game based on Unity Game Engine
Openmw Tes3mp ⭐ 494
Multiplayer for OpenMW, a reimplementation of The Elder Scrolls 3: Morrowind's engine.
Iogrid ⭐ 457
Multiplayer game engine/framework built using SocketCluster and Phaser
Openempire ⭐ 454
A multiplayer lockstep RTS engine compatible with the Age of Empires II Trial assets
Lasercrabs ⭐ 450
Launch your LASERCRAB at walls, ceilings, and enemy heads in this indie multiplayer shooter where "move" and "attack" are synonymous.
Darkest Dungeon Unity ⭐ 441
Darkest Dungeon port in Unity. Almost completely identical to the original. Platforms: PC/Android.
Fishfight ⭐ 439
Fish Fight is a tactical 2D shooter. Made with Rust-lang and Macroquad 🦀🌶
Tetraforce ⭐ 426
GBC Zelda-inspired game with online multiplayer. Built with Godot Engine
Emptyepsilon ⭐ 410
Open source bridge simulator. Build with the SeriousProton engine.
Rpc Websockets ⭐ 407
JSON-RPC 2.0 implementation over WebSockets for Node.js and JavaScript/TypeScript
Godot_goodies ⭐ 397
Collection of nice stuff for Godot
Yourcontrols ⭐ 383
Shared cockpit for Microsoft Flight Simulator.
Setwithfriends ⭐ 368
🎮 A frictionless multiplayer web app that lets you play Set with friends
Thyme ⭐ 362
An open source re-implementation of Generals : Zero Hour written in C++.
Xrengine ⭐ 346
Metaverse infrastructure for everyone. Everything you need to build and deploy scalable realtime 3D social apps and more. 🚀🚀🚀
Gdk For Unity ⭐ 338
SpatialOS GDK for Unity
Eureca.io ⭐ 331
eureca.io : a nodejs bidirectional RPC that can use WebSocket, WebRTC or XHR fallback as transport layers
Stuntrally ⭐ 324
The main repository containing Stunt Rally sources and game data. A 3D racing game based on VDrift and OGRE with track editor.
Ezyfox Server ⭐ 314
A socket server (include SSL) supports realtime application, realtime game, MMORPG, messaging, chat and streaming data with TCP, UDP and Websocket
Lunamultiplayer ⭐ 312
Multiplayer mod for Kerbal Space Program (KSP)
Flopnite Ue4 ⭐ 290
An attempt at remaking the popular battle royale game, Fortnite, using Unreal Engine 4 and Amazon GameLift
Coopshooterudemy ⭐ 284
C++ Coop Horde Third-person Shooter for Unreal Engine 4 (Udemy Project)
Colyseus Unity3d ⭐ 281
⚔ Colyseus Multiplayer SDK for Unity
Colyseus.js ⭐ 275
⚔ Colyseus Multiplayer SDK for JavaScript/TypeScript
Nakama Godot ⭐ 268
Godot client for Nakama server written in GDScript.
Supermariowar ⭐ 267
A fan-made multiplayer Super Mario Bros. style deathmatch game
Kaetram Open ⭐ 265
Kaetram is an open-source 2D HTML5 MMORPG. It is an extended version of BrowserQuest (BQ).
Scribble.rs ⭐ 262
A skribbl.io alternative - Play at https://scribblers-official.herokuapp.com/
Multiplayer ⭐ 262
Zetrith's Multiplayer mod for RimWorld
Nakama Unity ⭐ 257
Unity client for Nakama server.
Mine.js ⭐ 242
🌏 A voxel engine built with JS/TS/RS. (formerly mc.js) (maybe mine.ts? or even mine.rs?)
Tictac ⭐ 230
Demonstration of building a clustered, distributed, multi-player, turn-based game server written in Elixir.
Logisticspipes ⭐ 223
The RS485 take on LogisticsPipes -- ESTḌ 2012
Bzflag ⭐ 223
3D multi-player tank battle game
Drawphone ⭐ 222
Draw what you see, and guess what your friends drew
Tosios ⭐ 218
The Open-Source IO Shooter is an open-source multiplayer game in the browser
Rustarok ⭐ 203
Multiplayer, fast-paced Moba style game
Broken_seals ⭐ 198
An open source third person action RPG with multiplayer support.
Reldens ⭐ 198
Reldens - You can make it - Open Source MMORPG Platform
Segs ⭐ 195
💪 SEGS - Super Entity Game Server
Pydark ⭐ 191
PyDark is a 2D and Online Multiplayer video game framework written on-top of Python and PyGame.
Piano Rs ⭐ 179
A multiplayer piano using UDP sockets that can be played using computer keyboard, in the terminal
Riptidenetworking ⭐ 179
Lightweight C# networking solution for multiplayer games.
Rhubarb ⭐ 177
A WebSocket library optimized for multiplayer JS games, works on WebWorkers with binary data.
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
Openaudiomc ⭐ 169
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.
Creature Creator ⭐ 168
Procedurally generate creatures in Unity - inspired by Spore.
Mrboom Libretro ⭐ 165
Mr.Boom is an 8 player Bomberman clone for RetroArch/Libretro
Arenagame ⭐ 161
A Unity First Person Shooter game made with Forge networking as an example project.
Gdk For Unity Fps Starter Project ⭐ 156
SpatialOS GDK for Unity FPS Starter Project
Liveblocks ⭐ 153
This repository is a set of open-source packages for building performant and reliable multiplayer experiences.
Betterspades ⭐ 150
BetterSpades, an Ace of Spades client targeted at low end systems (GL/ES 1.1). Runs on your grandmother's rig!
Magicallife ⭐ 147
A 2d game that aspires to be similar to Rimworld, with more depth, magic, and RPG concepts.
Ore Infinium ⭐ 137
Ore Infinium, Open Source multiplayer Terraria-inspired Sci-fi game, focused on technology, devices and researching. Written in Kotlin (JVM), LibGDX. Cross platform
Openmmo ⭐ 133
OpenMMO - Groundwork
Chronoshift ⭐ 120
An open source re-implementation of Red Alert written in C++.
Micro Racing ⭐ 116
🚗 🏎️ 🎮 online 3D multiplayer neural networks based racing game
Blind Jump Portable ⭐ 114
Action/adventure game for the Nintendo GameBoy Advance and Sony PSP
Colyseus Examples ⭐ 113
Colyseus Game Server examples for learning purposes
Warcraft Arena Unity ⭐ 107
World of Warcraft client-server combat system implementation in Unity with Photon Bolt.
Fishgame Macroquad ⭐ 104
"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.
Skymp ⭐ 104
Bringing online capabilities to Skyrim SE
Unityprojectcloner ⭐ 103
A tool to let the user to create a duplicate project that links back to the original, for multiplayer testing
Odamex ⭐ 102
Odamex - Online Multiplayer Doom port with a strong focus on the original gameplay while providing a breadth of enhancements.
Nodegame ⭐ 101
Complete nodegame repository with examples and documentation
Nakama Unreal ⭐ 98
Unreal client for Nakama server.
Three.multiplayer ⭐ 98
🤼‍♂️ A boilerplate server and client setup for Three.js multiplayer using Socket.io
Phaser3 Multiplayer With Physics ⭐ 98
Phaser 3 - Real-Time Multiplayer example with Physics (MatterJS and Arcade)
Cataclysmld ⭐ 94
Cataclysm: Looming Darkness
1-100 of 1,176 projects

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Advertising 📦 9
All Projects
Application Programming Interfaces 📦 120
Applications 📦 181
Artificial Intelligence 📦 72
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Code Quality 📦 28
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Command Line Interface 📦 48
Community 📦 81
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Compilers 📦 60
Computer Science 📦 74
Configuration Management 📦 39
Content Management 📦 167
Control Flow 📦 197
Data Formats 📦 77
Data Processing 📦 266
Data Storage 📦 132
Economics 📦 60
Frameworks 📦 198
Games 📦 122
Graphics 📦 103
Hardware 📦 148
Integrated Development Environments 📦 47
Learning Resources 📦 147
Legal 📦 28
Libraries 📦 119
Lists Of Projects 📦 21
Machine Learning 📦 336
Mapping 📦 61
Marketing 📦 15
Mathematics 📦 55
Media 📦 228
Messaging 📦 97
Networking 📦 304
Operating Systems 📦 84
Operations 📦 120
Package Managers 📦 52
Programming Languages 📦 229
Runtime Environments 📦 96
Science 📦 42
Security 📦 375
Social Media 📦 26
Software Architecture 📦 70
Software Development 📦 68
Software Performance 📦 57
Software Quality 📦 127
Text Editors 📦 45
Text Processing 📦 131
User Interface 📦 310
User Interface Components 📦 465
Version Control 📦 29
Virtualization 📦 68
Web Browsers 📦 38
Web Servers 📦 25
Web User Interface 📦 194
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