How to create an OS from scratch

A tiling window manager for macOS based on binary space partitioning

A code-searching tool similar to ack, but faster.

World's fastest and most advanced password recovery utility

Learning operating system development using Linux kernel and Raspberry Pi

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

Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.

A Super Mario 64 decompilation, brought to you by a bunch of clever folks.

xhyve, a lightweight OS X virtualization solution

Classic Tomb Raider open-source engine

Checkpoint/Restore tool

A kernel designed to run one and only one application in a virtualized environment

Minoca operating system

cc65 - a freeware C compiler for 6502 based systems

Easily portable doom

A distributed operating system

PVSnesLib : A small, open and free development kit for the Nintendo SNES

VcXsrv Windows X Server (X2Go/Arctica Builds)

minimal CGI and FastCGI library for C/C++

MacBook Air 6,1 and 6,2 (mid 2013) backlight driver

A 2D golf game for the NES.

psdoom-ng is a First Person Shooter operating system process killer based on psDooM and Chocolate Doom.