Beyond the Wall
Written and designed by R.A. Montgomery, a prolific author whose "Choose Your Own Adventure" books were highly popular in the early 1980s, BTWOS is best described as a multimedia CYOA book -- you read the story like a book, then, once every few "pages," select one of two choices for your action that will affect how the story unfolds.
The plot is solid sci-fi fare: you are leader of an urgent expedition sent by the Celadon planet. Your task is to find Tara, a more advanced race who live beyond "the Wall of Stars" to ask them to aid the Celadon in their plight against. The quality of writing is decent -- just as you would expect in any R.A. Montgomery's CYOA books. The plot and the plot branches you will choose while playing are interesting enough to attract you to the very end. Plot development is in the form of choosing from multiple-choice options. Some choices you will make are indeed crucial to the survival of your crew so choose carefully.
Beyond the Wall of Stars deserves a look by all adventure fans as one of the earliest efforts in leveraging the new medium to present an older one. If you like CYOA books, you'll like this game.