Logrin is correct. TL;DR:
Early stonemasonry was essentially carving notches or seams in the working stone, inserting wooden wedges into these notches, then pounding these wedges with mallets or hammers to split the rock across a seam.
There were other things to it, such as finding the weak lines in the rock and the finishing touches and interesting stuff like cranes powered by human hamster-wheels, but that’s about it.
IIRC they had to have lots of spare tools, a forge and blacksmiths constantly on hand to repair the metal tools throughout the day as iron tools, chisels etc tended to wear out very quickly.
Remember that when you see something like a castle or pre-revolution fort.
So, boulder + Hammer/Sledge/Jackhammer = stones, flat boulder?
If we get this in I hope you can make them grab/draggable.
Just so we can use slave teams NPCs to make great pyramids to house our fallen survivors, containing all their loot, vehicles, tamed animals and wives/servants.
I mean come on, considering the goo and revivication would you really want these psychopaths coming back to life?
They’d be worse than biohulks, or the terminator. Or tank drones. Burying them under a few thousand tonnes of rock sounds like a good idea.