

Release
1980
Player score
60/100
Platform families
Not announced
Connected releases
Core game only
Game data from IGDB
Editorial overview
What it is
An asteroid is on collision course with Earth and it's up to the player to prevent the inevitable catastrophe. "Mission Asteroid" is the third text adventure with graphical illustrations by Sierra. But due to its easy difficulty level it was released as number zero in Sierra's Hi-Res Adventure series. The game's parser only understands simple one- or two-word commands.
The premise
There is a terrible tragedy about to happen to Earth. An asteroid, is speeding through space directly toward Earth. This particular asteroid was one of many revolving about the Sun between the orbits of Mars and Jupiter. Somehow, this asteroid jumped its orbit and is now threatening the life of every living soul on Earth. The only way to stop the asteroid is to blow it up in space before it gets to Earth. As an astronaut, you are assigned the duty of rocketing to the asteroid and blowing it up.
More like this
Play styles
Single player
Perspective
Text
Themes
Science fiction
Languages
1 supported
Cinematic archive
Official footage, in-game captures, and production artwork—collected into one immersive gallery.
Beyond this game
One complete franchise view connects the main releases, spin-offs, settings, and related game families.
Production dossier
Cast, creators, hardware, release history, and the details that define how this game plays.

Atari 8-bit

PC-9800 Series

PC-8800 Series

Commodore C64/128/MAX

Apple II

FM-7