The Famicom Disk System version of Knight Lore features changes from the original version. The game is now broken up into nine different stages consisting of eleven rooms each. This change also increases the number of items to find from eight to eleven and now there are eighty days instead of forty to complete the game.
The gameplay has become more focused on platforming challenges, with the ability to move objects removed. Players must navigate through the stages, collecting items and avoiding obstacles in a straightforward and challenging way.