Top MMO GitHub Repositories & Tools (2026)

TrinityCore Open Source MMO Framework (master = 12.1.0.69933, 3.3.5 = 3.3.5a.12340, cata classic = 4.4.2.60895)

A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.

Markdown component for React

❤️ Fredy - [F]ind [R]eal [E]state [D]amn Eas[y] - Fredy keeps searching for new apartments, houses, and flats in Europe on platforms like ImmoScout24, Immowelt, eBay Kleinanzeigen and instantly delivers the results to you via Slack, Telegram, Email, Discord or ntfy, so you can focus on the more important things in life ;)

The Wikimedia Commons Android app allows users to upload pictures from their Android phone/tablet to Wikimedia Commons

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

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.

The main repository for the Darkflame Universe Server Emulator project.

Apache Commons Codec

Apache Commons CLI

Tsugi Admin, Developer, and Management Console (pls join the dev list)

FOnline Engine is a flexible cross-platform isometric game engine

Cross-platform desktop utility tool for classic and vintage hardware repairing, troubleshooting, diagnosing and tracking repairs. Currently supporting many Commodore computers and a single Amstrad and ZX Spectrum. Native support for Windows, Linux and macOS.

Apache Commons Configuration

Command-line utilities to assist in developing Galaxy and Common Workflow Language artifacts - including tools, workflows, and training materials.

🐕 Ultimate trainer & mod collection for WARDOGS. God Mode, Infinite Ammo, Unlimited Money, Stealth Mode, Perfect Accuracy, and more. Memory-only, no file modifications. Single-player practice only. NOT for online multiplayer. Steam 2026.

Open-source Asheron's Call client for .NET 10. The original game's behavior, a maintained codebase, a plugin API.

Highly Performant & Scalable Ultima Online Server Emulator

markdown processor powered by plugins part of the @unifiedjs collective