Gravity Angels Part 1: Alien Discovery is one game in a series of Multipath
Movies(TM) by Brilliant Digital Entertainment. These games are pure
interactive movies that display a movie that allows for the player to select
among multiple paths at opportune junctures of the storyline. In that way, the
game is a “choose your own adventure” movie. Unlike other games of the
interactive movie genre, which generally display the movie bits using pre-
rendered full motion video, this game renders 3D models of the movie in real
time.

The science fiction story of this movie/game follows a group of employees of
the interplanetary mining corporation Miller-Western. For a variety of
disciplinary reasons, the employees are sent to the Jupiter moon of Ganymede
which used to have a thriving osmium-mining operation but is now just a
dumping ground for problematic employees who assault their bosses or engineer
faulty equipment because they were drunk. No one on the base is to be trusted,
everyone is hiding a bevy of secrets and to make matters worse, every monitor
across the moon base periodically picks up mysterious transmissions that
appear to depict some unknown alien lifeform. Who are they? What do they want?
Hence, the subtitle of the game, Alien Discovery.