You play as a custom-named crew member (defaulted to Cole) on the colony-ship Amenonuhoko. The Amenonuhoko's mission was relatively straightforward: travel to a near-Earth star system to test whether or not the idea of an extra-planetary colony was feasible. Whether or not that mission has and will succeed is still in doubt as you wake up from your cryostasis under mysterious circumstances.
In order for you to be able to install this game, you need to enable (allow) installation of applications from unknown sources (Unknown sources) in the phone settings. Usually this item is in the Security section