Silent Walk FPS Creator is regarded by many to be the best version of Silent Walk ever made. It fixes multiple bugs and adds more to the editor itself.
Source Code releaseEdit
On March 15, 2009, Zoltan released the Game Maker 6 & 7 source code for Silent Walk 1.0 and 1.1. Included with the source code is all of the original files that came with Silent Walk 1.0 and 1.1 registered. If you did not wish to modify any aspects of the editor, you could still use the original Silent Walk without any limitations. This became very useful to many people.
Silent Walk Community Edition (or CE for short)Edit
Silent Walk CE was an idea by Jonny for a newer version of Silent Walk 1.1. It was never started, much to the dismay of many.
SWINE (Acronym unknown)Edit
SWINE is a project created by Black Sabbath. It is currently in version 1.2. Development has stopped on new functions but bug fixes will continue to come out.
"I have closed the development of SWINE. I have done this because i really want to learn C and SWINE is just another distraction. However this doesn't mean there wont be new releases." -Black Sabbath, Silent Walk Forums
Silent Source: XTCGames EditionEdit
Silent Source: XTCGames Edition was a small project by XTCGames. It added minor cosmetic additions to the Silent Walk 1.1 GUI. It was never finished or released.