End-game "Final Boss"

[Trondor]

Okay, so Factorio is a game about automation, but I feel the should be something more at the endgame. I think that, once you launch the Space Rocket for the first time, it crashes back down (Destroying some buildings, of course) followed by some sort of giant alien crashing somewhere near your base that moves slowly towards it. An interesting mechanic might be to make it nearly immune to turrets and trains, and only damageable by the Player's weapons. Once the boss is defeated, you can launch another rocket in to space, but that one is undisturbed, and then showing the end screen.