Top RPG 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)

Free/Libre Action Roleplaying Engine (engine only)

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.

Virtual Tabletop for playing roleplaying games with remote players or face to face.

FOnline Engine is a flexible cross-platform isometric game engine

An advanced and powerful quest scripting plugin for Minecraft. Features built-in RPG style conversations and integration for over 40+ other plugins.

GURPS Character Sheet

A quests plugin based on a simple-to-use graphical interface (Minecraft)

ScummVM main repository

Give your AI agents lasting roles, a shared Camp, and a journey together — then let them grow into a team.

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