A default (i.e. full) Slackware install has blackbox, fluxbox, fvwm, window-maker and icewm available by default along side kde and xfce desktop environments. A

A default (i.e. full) Slackware install has blackbox, fluxbox, fvwm, window-maker and icewm available by default along side kde and xfce desktop environments. And twm. And hidden away, not available from `xwmconfig` for some reason, lurks mwm.