Godot Engine – Multi-platform 2D and 3D game engine

An open-source C++ library developed and used at Facebook.

Notepad++ official repository

🎮 A step-by-step guide to implementing SSAO, depth of field, lighting, normal mapping, and more for your 3D game.

DOOM Open Source Release

Dear PyGui: A fast and powerful Graphical User Interface Toolkit for Python with minimal dependencies

A free and strong UCI chess engine

Flexible level editor

An open source, turn-based strategy game with a high fantasy theme.

a multi-system chiptune tracker compatible with DefleMask modules

The Lobster Programming Language

Simple 2D Graphics Library for C

Custom 16-bit homebrew CPU, emulator, renderer, PCB, and language

A Single-Header 2D Geometry Analysis Library