The Hitchhiker's Guide to the Galaxy President; the depressed robot Marvin the Paranoid Android; and Trillian, formerly known as Tricia McMillan, a woman Arthur once met at a party in Islington and the only other human survivor of Earth's destruction thanks to Beeblebrox' intervention. The first radio series comes from a proposal called "The Ends of the Earth": six self-contained episodes, all ending with Earth's being destroyed in a different way. While writing the first episode, Adams realized that he needed someone on the planet who was an alien to provide some context, and that this alien needed a reason to be there. Adams finally settled
The Hitchhiker's Guide to the Galaxy (video game) spent reacting to situations, such as the impending deaths variously threatened by bulldozers, matter-transference hangovers, the Ravenous Bugblatter Beast of Traal, or nuclear missiles. Like many Infocom games, an InvisiClues booklet was available for this game, as a separate product. The Infocom version of "The Hitchhiker's Guide to the Galaxy" became a fan favorite; it was one of five top-selling Infocom games to be produced in Solid Gold versions, with a built-in hint system not included in the originals. The game was re-released by Activision in several collection packages before rights reverted to Adams, enabling The Digital Village to re-release