Another of Sierra's earliest graphic games, this game actually had a fairly interesting plot, though some of the situations set up in the game were fairly silly, and certain parts of the game made little or no sense. Dealing with as serious a situation for any of Sierra's games, this game dealt with an asteroid on a collision course with Earth which you must find some way to stop. As with all of Sierra's earliest games, this game is notable for little else beyond the novelty value of seeing one of the earliest color adventure games, and seeing how, even though they were all-text, Infocom's games were already more involved, interesting, and sophisticated.