An enjoyable and surprisingly poignant little story about the bleak existence of a lonely spaceship pilot doomed to spend each day out in the middle of nowhere tagging asteroids... until something unexpected happens.
The gameplay is pretty simple, mainly advanced through NPC dialogue and the inevitable asteroid tagging sessions, and as far as I know there isn't really any way to "game over" or get in any sort of fail state. Asteroid tagging itself is kind of tedious but I suppose that's the point, what with how bleak and lonely the main character's living situation is. Play this game with the same mindset you'd have reading a science fiction short story and you'll get the best experience out of it.
One gripe I have with the game is that the "choices" the game offers at certain plot critical points are clearly meant to push a player in a particular direction with a right and wrong option rather than offering meaningful decisions. If one option just cuts out a boatload of narrative content while the other actually properly advances the story, the choice might as well not be there at all. Luckily the choices the game expects you to make are pretty obvious so I doubt many players will fall for this trap.
I actually started to get emotionally invested in what was going on with Werner so the "revisit the nebula" ending was kind bittersweet and a tad disappointing for me. If there's another hidden ending I'm not aware of that gives a happier conclusion I'd love to hear about it.