Top 87 mmorpg open source projects

This project aims to create an easy to use, extendable and customizable server for a MMORPG called "MU Online".

MMORPG是一个可以用来学习ARPG核心战斗的项目（不再维护）。http://v.youku.com/v_show/id_XOTE5NDg1MTg0.html?firsttime=0

#1 Open Source Unity Networking Library

Stendhal is a fun friendly and free multiplayer online adventure game with an old school feel.

OTX Server from:

Asheron's Call server emulator.

Open-Source MMORPG Server Emulator

Ryzom Core is the open-source project related to the Ryzom game. This community repository is synchronized with the Ryzom Forge repository, based on the Core branch.

通用的实时流golang框架，可以方便的创建游戏服务/聊天服务等

OpenKO is an open source version of the old school Knight Online MMORPG

This repository holds the Open RuneScape Classic game framework

rAthena is an open-source cross-platform MMORPG server.

Rhisis is an experimental FlyFF MMORPG emulator built with C# 9 and .NET 5

Reldens - You can make it - Open Source MMORPG Platform

A Golang MapleStory (v28) server

FOnline Engine is a flexible cross-platform isometric game engine

Tap Tap Adventure is a massively online 2D MMORPG set in the medieval times with twists.

Online Role Playing Game (based on Laravel)

open source MMORPG game

The main client for the Worldforge MMORPG system.

OpenMMO - Groundwork

Tera DPS Meter

ESOUI is the Lua source code of the ZenimaxOnline's MMORPG "The Elder Scrolls Online"

A server emulator for Lineage2 Interlude written in C#

Complete Open Source and Modular solution for MMO

A modern take on WoW emulation

A collaborative MMORPG made in Javascript

基于 rAthena 二次开发的中文仙境传说模拟器（Windows版本）

A free and open-source MMORPG server emulator written in C++

A high-fantasy MORPG.

Auriga is a MMORPG server.

Server for Argentum Online

A free/open source client and automation tool for Ragnarok Online

Unsupported and now archived for historical use only. Refer to the Core Framework repository for current code.

Ultima Online Shard Emulator w/ Node.js

TrinityCore Open Source MMO Framework (master = 9.1.5.41488, 3.3.5 = 3.3.5a.12340)

Hercules is a collaborative software development project revolving around the creation of a robust massively multiplayer online role playing game (MMORPG) server package. Written in C, the program is very versatile and provides NPCs, warps and modifications. The project is jointly managed by a group of volunteers located around the world as well as a tremendous community providing QA and support. Hercules is a continuation of the original Athena project.

Create your browser RPG and MMORPG in your browser !

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。

A MMOG engine of server.

DEPRECATED - FFXI Server Emulator - See Project Topaz

⚔️ An online JavaScript 2D Medieval RPG.

An Ultima Online server emulator written in C# .NET

An emulator for the defunct MMORPG WildStar which supports build 16042 (Final Patch)

EQEmu - Open Source EverQuest Server

springboot编写的轻量级高性能mmorpg手游服务端框架，基本功能逐渐完善中。

A fast, scalable, distributed game server engine/framework for C++, include the actor library, network library, can be used as a real time multiplayer game engine ( MMO RPG/MOBA ), which support C#/Lua script/ Unity3d, Cocos2dx and plan to support Unreal.

一个基于Entity-Component模式的灵活、通用的战斗（技能）框架，配置可选使用ScriptableObject或是Excel表格

Perpetuum Standalone Server

A collection of mobile friendly guides to help players navigate group content in Final Fantasy XIV.

Plugin to transform RPG Maker MV to MMORPG Maker MV

Scalable MMORPG game server based on entity control

A mobile realtime bullet-hell 8-bit style MMORPG

Legacy VB6 open-source ORPG

https://trueuo.com

MMORPG Game Server toolkit written in Elixir

C# Packet Sniffer for the Tera

⛵ LandSandBoat - a server emulator for Final Fantasy XI. Just an X-34 landspeeder out for a drive.

A free and open-source Pokémon MMORPG client written in C++ based on otclient.