Progress through 6 ages of technology, starting with steam and tame exotic matter in the end. Adds various game mechanics, a variety of new resources and big machines. Compatible with Krastorio2.
I love mods that have some sort of a late-game mystery to figure out. Something that feels much more remote and much more rewarding than just launching a rocket. Something that you don't even know until you actually get there. So far only Space Exploration and a little bit Nullius went there, so I'm really glad to see another mod expanding the game on the "mystery" front.