An implementation of OpenGL 3.x-ish in clean C
A cross platform lightweight single-header simple-to-use library
CGL (C Game Library) is a multipurpose library
Write like a high-level language, run like C
Educational Linux Distribution
Hobby operating system, bootloader, kernel, drivers, C library
An educational software system of a tiny self-compiling C compiler
A cross-platform, top-down 2D space shooter written in C
The penultimate portable graphics library
Learning operating system development using Linux kernel and Raspberry
A small C compiler
Compiler for the C programming language
A Small C Compiler
A readable lisp in less than 1k lines of C
The roses project is a C programming language and OpenGL tutorial.