Complete Open Source and Modular solution for MMO

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

Biomes is an open source sandbox MMORPG built for the web using web technologies such as Next.js, Typescript, React and WebAssembly.

Distributed Java game server, including cluster management server, gateway server, hall server, game logic server, background monitoring server and a running web version of fishing. State machine, behavior tree, A* pathfinding, navigation mesh and other AI tools

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

An Ultima Online server emulator written in C# .NET

A socket server (include SSL) supports realtime application, realtime game, MMORPG, messaging, chat and streaming data with TCP, UDP and Websocket

这是一个轻量级的、一站式的java游戏服务器框架，也可用于开发简单的web服务。基于netty实现了高性能通讯，支持tcp、http、websocket等协议，支持protobuf、json两种数据格式，支持以配置的形式轻松开启多端口网络服务。支持RPC远程调用，支持以优雅的方式实现远程调用，支持调用超时重试、幂等调用。封装了持久化层，提供数据访问和数据落地接口，支持异步新增、保存、删除数据，支持主键或指定其他字段进行数据缓存。支持简单的ioc，业务层使用依赖注入实现逻辑。封装了伪协程实现方案Promise，可用于解决地狱式回调等问题。支持MVC、领域、ECS架构。

Reldens - You can make it - Open Source MMORPG Platform

An infinity procedural online game using Flutter with NodeJS and flames

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.

Modern MMORPG server emulator written in C#

⛵ LandSandBoat - a server emulator for Final Fantasy XI

Distributed Java game server, including login, gateway, game demo

A Golang MapleStory (v28) server

Ultima Online Server Emulator for the modern era!

💪 SEGS - Super Entity Game Server

Legend of Mir 2 Game server

a skynet implementation of MMO, server side of UnityMMO

Travian T3.6 , BEST VERSION EVER