In trying to keep as much KF related material on one site, it was only a matter of time before SoM became part of it too.
Sword of Moonlight: Kings Field Making Tool is a windows based program released only in Japan. It lets you construct your own 'free-standing' King's Field-like games which may be played independently, without having Sword of Moonlight installed. Until recently, it had been almost impossible (for some of us) to do anything with the program since all the instructions were in Japanese. Now thanks to weissvulf who managed to do a translation, anyone who is lucky enough to get a copy of the program will be able to create their own games.
Screenshots of the game editor: