Razor-qt is described as 'Advanced, easy-to-use, and fast desktop environment based on Qt technologies. It has been tailored for users who value simplicity, speed, and an intuitive interface. Unlike most desktop environments, Razor-qt also works fine with weak machines' and is a desktop environment in the os & utilities category. There are more than 10 alternatives to Razor-qt for a variety of platforms, including Linux, BSD, FreeBSD, SteamOS and OpenIndiana apps. The best Razor-qt alternative is KDE Plasma, which is both free and Open Source. Other great apps like Razor-qt are GNOME, Xfce, Cinnamon and MATE.
It is the successor of Razor-qt