The Shadows of Mordor: Game Two of Lord of the Rings (1987)

The Shadows of Mordor is an officially licensed J.R.R. Tolkien "Lord of the Rings" text adventure game based on the second part of the trilogy - "The Two Towers". You can select to play as either Frodo or Sam. The game follows the plot of the book closely and many locations have accompanying illustrations. Unusually for a text adventure game, the action happens in real time: if you sit there thinking of what to do next, things will happen in the game. (mobygames.com)