Up to the point where you catch a ride on a Vogon flagship moments before the destruction of the earth, In- focom's The Hitchhiker's Guide to the Galaxy mirrors the plot of Douglas Adams' delightful novel. From then on, you'll interact with the characters and locales of the book in a series of new adventures by Adams. On disk for the C-64, $34.95; for the Plus/4, $39.95.
 Infocom, Inc., 55 Wheeler Street, Cambridge, MA 02138 (phone: 617-492-1031).