Grant evolution and survival to an alien in Astrocreep. Interact with the scenario, escaping from the spaceship to spread horror. Use the Mouse to click on objects and people, keeping focus at feeding the creature and not letting humans with potential to kill it notice. Find secret paths under the veil of shadows, hiding until the best moment for eating comes. The monster is still little and full of hunger, and only the first characteristic seems to change with time. Devour anything that moves and has life within, planning strategies to prevent its death and having to reset the level.