bspwm - A tiling window manager based on binary space partitioning
pekwm - pekwm is a window manager that once up on a time was based on the aewm++ window manager, but it has...
Ratpoison - Ratpoison is a simple window manager with no fat library dependencies, no fancy graphics, no window...
Compiz - Project information. Maintainer: PS Project Management Team. Driver: Compiz Maintainers. Licence: GNU GPL v2, GNU LGPL v2. 1, MIT / X / Expat Licence.
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
qtile - Qtile is a full-featured, hackable tiling window manager written in Python.