Open source. Open possibilities.

jiMUD is an Electron-based MUD client for ShadowMUD, built from the game's web client. It offers tabs and windows, profiles, speedpaths, scripting, a mapper, character management, immortal tools and an area-design code editor.

Tokamak is a C# engine designed for creating games and virtual worlds, providing a modular set of building blocks for application development.

WarriorJS is an open‑source programming game where you write JavaScript or TypeScript to guide a warrior through puzzle‑filled towers, battling enemies and solving logic challenges. It teaches coding while playing.

Remembering Home is a 2D game built with LÖVE (Love2D) framework, featuring an Entity Component System, AI behavior trees, and various libraries for animation, collision, and GUI. It includes build scripts and tools for development.

H5P Game Map is an H5P content type that lets students choose their exercises from a game map. The repository documents its npm build, lint and h5p pack workflow; it is contract work offered free of charge with no guaranteed support.

A collaborative, categorized directory of open-source iOS apps with source code links and descriptions, useful for developers seeking real-world reference examples.

RetroChess is a Chess plugin for RetroShare 0.6 that lets you play chess with RetroShare friends and contacts. It installs as a shared-library extension and adds a chess game window plus chat invitations, and ships with a standalone Qt board debugger for testing chess rules.

A cross-platform terminal game collection built with Rust and Lua, offering 18 classic games such as Tetris, Minesweeper, Snake and Solitaire, with English and Simplified Chinese support, i18n JSON language files and package-manager installs.

ET is a dual-end game development framework based on Unity3D client and C# server, supporting distributed architecture, Actor messaging, coroutines, hot updates, and AI-assisted development.

Nakama is an open-source game backend server from Heroic Labs. It provides users, storage, social graph, chat, realtime and turn-based multiplayer, leaderboards, tournaments, parties, purchase validation, notifications and runtime code.

Goat It Web Game is a Nuxt 4 and Vue 3 web game, part of the Goat It app ecosystem, with a live demo, Docker support, and comprehensive testing via Vitest, Playwright, and Cucumber.

An open-source workspace of focused web utilities and PWAs, ranging from media tools and AI experiments to developer utilities.

Airtest is a cross-platform UI automation framework for games and apps, using image recognition to locate UI elements without code injection. It supports Android, iOS, and Windows, with a GUI tool (AirtestIDE) and CLI for running test cases.