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FreeOS/1 is a Free, Open Source, FreeDOS based Free and Open Source Alternative OS, with open source Microsoft Windows compatibility using HXDOSExtender KernelEx,and ReactOS source code. FreeOS/1 will include new technologies and will be easy to use20 weekly downloads
JOPUX - a flexible and scalable application platform!16 weekly downloads
An open source operating system for x86.3 weekly downloads
A free desktop hypervisor6 weekly downloads
A Free and Open Source Operating System by SamyPesse Version Actuelle: 10.04 Web-Site: http://myos-os.org [French Only]2 weekly downloads
Jinx OS Is An Up-And-Coming 64Bit OS.2 weekly downloads
StepOS is an open-source operating system that is designed solely to run StepMania, the popular 'dance simulation game', on arcade dedicated cabinets, and is easy to install and maintain. StepOS is based off of the open-source operating system ReactOS.2 weekly downloads
XSystem Kernel Project - an object-oriented 32-bit protected-mode operating system for IA32-architecture.1 weekly downloads
Acquaintance OS aims to be a lightweight Linux distribution based off of OpenSUSE. Remember, don't be fooled by the OpenSUSE branding, this project is very different from OpenSUSE, software-wise and goal-wise.1 weekly downloads
An open-source alternative to Apple Mac OS X. Intended to comply completely with the OPENSTEP specification. Written in Objective-C. Kernel based on FreeBSD.1 weekly downloads
MDF is microkernel operating system. Module architecture minimalistic design.1 weekly downloads
SuperWikia: The Runtime/Realtime Environment for Codesmiths1 weekly downloads
A new OS1 weekly downloads
a small, x86 Operating System, developed in C++ and NASM, aimed to give the user a closer relationship with the hardware.1 weekly downloads
AxionOS is (to be) a operating system for the Axion Prototype Computer (APC) which is basically a notebook. Currently the project is in its childhood, but the idea is simple - To create an intuitive, user-friendly operating system for the APC.
CJet eXTreme OS is a new project to develop a cross platform operating system with a native application interface designed to make it easy to develop for several architectures at once.
Cellocity Linux is Based on Fedora Core 6 Source Code. With only basic core elements needed to operate Compatipal and a completley Graphic Interface as well as Text. Version 2.0 will include more applications 32,64 bit and 80 Core Intel CPU
Dreambox X Software Project provides appropriate software developed on Linux and open standards for the DreamBox (DVB) Set Top box. This project will focus on English language support, updated documentation and useful guidance.
Flip OS is a open source OS based off of ReactOS. We write the code using the ROS Code as a guide.
An Ubuntu-Core Based Distro focused on lightweight usage!
Ian OS Alpha (Version 0.0.1)
The IceBox Linux Distribution is back.
The Isis OS Project Is a Controlled Project to Develop An Advanced Modern Operating System!
LLSOLL "Laboratoire de Langues en Standards Ouverts et Logiciels Libres" (Laboratory Standards Languages Open and Free Software). Fully digital GPL V3, llsoll based on various free programs in a new concept around Linux architecture.
Musician-oriented Linux distro