Noctalia is described as 'Beautiful, minimal desktop shell for Wayland built with Quickshell. It’s designed with a “quiet by design” philosophy, providing a complete desktop experience that stays out of your way' and is a desktop environment in the os & utilities category. There are more than 25 alternatives to Noctalia for a variety of platforms, including Windows, Linux, BSD, Mac and Wayland apps. The best Noctalia alternative is KDE Plasma, which is both free and Open Source. Other great apps like Noctalia are Xfce, Seelen UI, Open Shell and LXQt.
BB4Win (Blackbox for Windows) is an alternative shell for Microsoft Windows. The program aims to emulate the look and feel of a Linux based desktop. The BB4Win project was discontinued in 2005 but various branches have been built from the source.
The SphereXP is a 3D desktop replacement for Microsoft Windows. Taking the known concept of three-dimensional desktops to its own level. It offers a new way to organize objects on the desktop such as icons and applications. It has been tried out by millions worldwide.
United States
xoblite is an advanced "extended shell" for Microsoft® Windows® 10/11, part of the Blackbox for Windows family.
KDE 3.5 fork. A computer desktop environment for Unix-like operating systems with a primary goal of retaining the function and form of traditional desktop computers.
The Common Desktop Environment was created by a collaboration of Sun, HP, IBM, DEC, SCO, Fujitsu and Hitachi. Used on a selection of commercial UNIXs, it is now available as open-source software for the first time.
DDE (Deepin Desktop Environment) is a Desktop Environment (DE) written in Qt for Deepin
China
bbLean is the lean version of Blackbox for Windows. It tries to keep balance between features and complexity, to give you some efficient means within a compact shell.
Germany
EU
UKUI is a lightweight desktop environment based on pluggable framework for Linux and other Unix-like Distributions. It is developed using GTK and Qt.
China
Bluetile is a tiling window manager for Linux, designed to integrate with the GNOME desktop environment. It provides both a traditional, stacking layout mode as well as tiling layouts where windows are arranged to use the entire screen without overlapping.
GermanyEU
DeskSpace is a 3D desktop visualisation tool, allowing you to seamlessly switch between 9 desktops.
Australia
GeoShell - The premier minimalist Windows shell replacement. It replaces the default Explorer interface. It features menu bars—“geoBars”—that can be dragged-and-dropped anywhere on the users screen. There are also desktop menus that can be triggered whenever a user clicks...
