Viperr is described as 'aims to merge CrunchBang Linux qualities with a Fedora base benefits' and is an app in the OS & Utilities category. There are more than 10 alternatives to Viperr for Linux, KDE, Fedora and Xen. The best alternative is Fedora, which is both free and Open Source. Other great apps like Viperr are elementary OS (Free, Open Source), Qubes OS (Free, Open Source), KDE neon (Free, Open Source) and ArchBang (Free, Open Source).
BunsenLabs Linux is a distribution offering a light-weight and easily customizable Openbox desktop. The current release is Helium, built on top of Debian (stable). The project is a community continuation of CrunchBang Linux.
The CLIP OS project is an open source project maintained by the ANSSI (National Cybersecurity Agency of France) that aims to build a secure, multi-level operating system, based on the Linux kernel and a lot of free and open source software.
CrunchBang++ is an open source and completely free [of cost (#!++ does include several of Debian’s non-free packages as well as the non-free repository)] computer operating system, designed as a continuation of the .
Nitrux is an Ubuntu-based Linux distribution suitable for laptops and desktop computers. Its main desktop environment is Nomad, a KDE Plasma desktop enhanced with "plasmoids" to create a special blend of aesthetics and functionality.
The unofficial successor of Antergos, RebornOS is an Arch-based distro that focuses on allowing the user to decide exactly how they want their system while making it easy for anyone to do so - both during installation and afterwards.