Amazing! This game ties everything together... I might be reaching, but do this game and Affection imply that the creature from Affection is the main heroine from Obsession after she... joined the hivemind?
My other theory is that the creature is the God that the cultists from Virmachina have summoned, while Obsession is set in the same universe, but its events are unrelated to the Virmachina and Affection arc.