Company Wataru Sanuki created these great apps:
Hack, LightLiner, Light Butterfly, Push The Button!!, Connect Cubes Puzzle, Connect Ropes Puzzle, 5Min Escape Room 5分で脱出, 15 Min Escape Room, Kitchen 15 Min Escape Room, SciFi 15 Min Escape Room, Crypt 15 Min Escape Room, Sketch 15 Min Escape Room, and others..