i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
Cairo Shell - Cairo is a desktop environment for Windows.
Fluxbox - Fluxbox is a window manager for X that was based on the Blackbox 0.61.1 code.
Talisman Desktop - Talisman Desktop is a configurable Windows shell replacement introduced in 1997 by Lighttek...
Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.
bbLean - Alternative Windows shell