Taran's Quest: Disney and Sierra's The Black Cauldron Dos Computer Game

                                                                  adverts for the game

                                                        youtube videos of the game

You can also check it out here at the DOS Games Archive

this internet archive link has the booklet for the game (with artwork from the end credits of the film and pictures from the film)
https://archive.org/stream/The_Black_Cauldron_Manual#page/n0/mode/2up