Countdown to Doom is a text adventure computer game, more recently termed interactive fiction, written in 1982 by Peter Killworth. Its setting is the planet Doomawangara, which is coyly said to be shortened to "Doom". In this game, the player is in a crashed spacecraft and must find a way off the planet. There are many ways to be killed in this game. This computer game has two sequels, Return to Doom and Last Days of Doom, but has nothing to do with the shoot-'em-up Doom. Zork, an early work of interactive fiction, running on a modern interpreter Interactive fiction, often abbreviated IF, describes software simulating environments in which players use text commands to control characters and influence the environment. ... 1982 (MCMLXXXII) was a common year starting on Friday of the Gregorian calendar. ... Doom (or DOOM)[1] is a 1993 computer game by id Software that is among the landmark titles in the first-person shooter genre. ...