Sasha has found herself off the mother ship Para Ark and now on a smaller ship that is orbiting a small planet. She has no memory of what happened on Para Ark but she is pretty sure the last thing she remembers is she was told to evacuate and then some kind of explosion. She is then sent to the planet where she fucks an alien and this causes her to have a child who is a monster. And each of these monsters is unique and each monster that is born is unique. You can then bring one offspring to battle each time you are exploring.