ダンジョンRPGツクール だんだんダンジョン (Dungeon RPG construction kit Dandan Dungeon) is a japanese game inspired by Dungeon Master.
It was published on April, 28 1994 in Japan as a 135 pages book with dungeon construction kit. It was developed by Enterbrain, Inc. for PC-9801 and MS-DOS platforms.
The book is out of print and not available in Japan.
[Supplied by kentaro.k-21]
You can play the game with the Anex86 emulator.
kentaro.k-21 was nice enough to translate some of the menus to english.