The levels 1-3 are named Containers, Mining and Terraforming as you know. The robots are gathering lost cargo, producing building material and blowing impending asteroids. The theme is "Preparing".
The levels 4-6 share the theme "Constructing". This is about building stations for pioneers. There are construction sites, workshop modules, generators, production of food, extraction of water and oxygen.
The latter requires ice, so I integrated this new environment:
And here you see a small workshop module with plasma welders attacking the player:
