After making Selene your obedient slave, the game ends the part 3. Then it mentions there is one last part to the story. If I remember correctly, that part was gonna be about advancing your power and ascendence on the whole universe. But the game is to be continued. I am not sure if I have the final version so I wonder, is part 4 still not available? If so, do you have plans for it in the future?
By the way, I really enjoyed the whole game from its story to gameplay and was able to get all secrets. Thank you for your hard work!