If you have already a Nanosaber, and Hightechstuff, then WHY THE HECK DO YOU WANT TO INVESTIGATE A RUIN?
Whats about finding Circuits, Rubber, Batteries (also Singleuse to give that a Sense), Foodcans, Fuelcans (also empty ones) and refined Iron inside Dungeon/Pyramid/Stronghold/Mineshaftchests, and removing the StickyresinSmelting2Rubber-Recipe and the RefinedIron-Recipe from the Furnace/Ironfurnace, so that you have to build an Extractor or to investigate more Ruins, to get Rubber and you need an Electric Furnace to get Refined Iron.
As for the Aliens/Nazis: Why are Aliens, who can build Spaceships in Industrialage? Or is it like in that Film, where Nazis have build a Base on the Moon, to make an intressting "Comeback" with strange industriallooking Inventions?
If we don't have some cool weaponry, would be fun trying to take down a armored mecha with an iron sword.
Gundam VS Connan the barbarian
I mean, the point would be reach certain tech level, and with that level do some exploring, kill some baddies and get some new shiny tech. Would be like crops, something to kill time till the next update
Otherwise I think it would be too slow and boring advance your tech level.