GitHub - erincatto/box2d: Box2D is a 2D physics engine for games

Hexmap Hexmap allows the exploration of arbitrary binary data in a pan and zoomable map-like visualization. Each byte is mapped to a single grayscale 8bit pixel. Row length and row starting offset can be adjusted in real-time, reflowing all pixels accordingly. Hexmap also serves as a demonstrator and test project for a pure WebAssembly/WebGL based web application. Written in C++17, it can be compiled natively to any platform that supports at least (hardware accelerated) OpenGL ES 2.

So you want to learn more about game engines and write one yourself? That's great news! Here are some of my suggestions of C++ libraries and dependencies to help you get the job done.