Sokoban

GSokoban
A GNOME version.
http://www.ndap.net/gsokoban/

Pumpy
3D derivation of Sokoban for Windows. It has a Halloween atmosphere, 30 built-in levels, and a level builder.
http://eicart.free.fr/pumpy/

Sokoban++
Windows version with mouse control that is available in multiple languages.
http://www.joriswit.nl/sokoban/

YSokoban
Very small Windows version featuring full mouse support with hints, textfile levels, and saving solutions.
http://www.geocities.com/ygp_bg/