stb single-file public domain libraries for C/C++

A simple and easy-to-use library to enjoy videogames programming

Cross-platform asynchronous I/O

High performance UI layout library in C.

A single-header ANSI C gui library

mimalloc is a compact general purpose allocator with excellent performance.

A simple Minecraft clone written in C using modern OpenGL (shaders).

C in four functions

minimal cross-platform standalone C headers

A fast entity component system (ECS) for C & C++

3D engine with modern graphics

Audio playback and capture library written in C, in a single source file.

eSpeak NG is an open source speech synthesizer that supports more than hundred languages and accents.

A cross-platform library to access USB devices

A tiny immediate-mode UI library

Classic Tomb Raider open-source engine

Collection of cross-platform one-file C/C++ libraries with no dependencies, primarily used for games

cc65 - a freeware C compiler for 6502 based systems

Free, easy, portable audio engine for games

🎃 Windowless WebGL for node.js

💠 Single-file glTF 2.0 loader and writer written in C99

A C/C++ single-file library for drop-in lightmap baking. Just use your existing OpenGL renderer to bounce light!

🚀 Making multi-player gamedev simpler since 2017

Port of Box2D to JavaScript using Emscripten

cmftStudio - GUI counterpart for:

Small and efficient screen recording utility for Windows 10 and 11

Engine for making things with a MS-DOS feel, but for modern platforms

A framework for rapid prototyping and development of real-time rendering techniques.

The most powerful open source SDK for the PS1 (as far as open source PS1 SDKs go). Not recommended for beginner use.

Lightweight and Simple 3D Open Source Physics Engine in C++