A framework for building native applications using React

Build cross-platform desktop apps with JavaScript, HTML, and CSS

The new Windows Terminal and the original Windows console host, all in the same place!

An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.

Windows Calculator: A simple yet powerful calculator that ships with Windows

PlayStation 4 emulator for Windows, Linux and macOS written in C++

The open-source database for the realtime web.

Google's common Java, C++ and JavaScript library for parsing, formatting, and validating international phone numbers.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

OpenTTD is an open source simulation game based upon Transport Tycoon Deluxe

Command and Conquer: Generals - Zero Hour

A powerful free cross-platform RTS game engine. - Report issues at https://springrts.com/mantis/

Use controllers from other consoles natively on your Nintendo Switch via Bluetooth. No dongles or other external hardware neccessary.

node-webrtc is a Node.js Native Addon that provides bindings to WebRTC M87

Bond was a cross-platform framework for working with schematized data. The open-source project ended on March 31, 2025.

Xbox (Original) Emulator

Advanced shading language for production GI renderers

OpenRW "Open ReWrite" is an un-official open source recreation of the classic Grand Theft Auto III game executable

An open source re-implementation of Chris Sawyer's Locomotion

Little Navmap is a free flight planner, navigation tool, moving map, airport search and airport information system for Flight Simulator X, Microsoft Flight Simulator 2020, Prepar3D and X-Plane.

Slides and other materials from CppCon 2018

An attempt to recreate the classic Need for Speed Games (1-6), unpacking their original data files into a modern, scratch built engine.

OpenTTD - http://www.openttd.org/ - with additional patches

An open source re-implementation of Generals : Zero Hour written in C++.

SafeDiscShim is a compatibility tool that allows for SafeDisc protected games which utilize the insecure Macrovision Security Driver ("secdrv.sys") to run on modern versions of Windows .

Open source re-implementation of Stronghold 1

2D CAD especially designed to draw steam locomotives

Libre reimplementation of Jungle and Desert Strike games

A .NET wrapper around libsass library

OpenTTD but with a prometheus metrics endpoint