KNOH is a fan open-source project to implement and expand on the mechanics used in the freeware game KOHCTPYKTOP: Engineer of the People by Zachtronics. It is written in C++ on top of SFML and the name is completely arbitrary with no meaning whatsoever. The aim of the project is to produce a sandbox experience in which players can design and share both circuits and challenges.
Any and all contributions to the project are welcome and much appreciated.
SFML 2.1 is included in this repository for convenience. In order to compile against it you will need Visual Studio 2012.