It’s neither as far as I can see with limited knowledge.
Storyline? Yes, many. I don’t know what most of them are yet but I’ve uncovered hints of many things that clearly continue.
Economy? Yes, there is an economy across the universe and many independent traders trying to fix a deal for themselves.
Tell you what actually, the best thing so far is usually the worst thing. The grind. I need another 20 units of zinc to make a warp cell to let me blast out of this solar system. The space station and the planetary trading post aren’t playing ball, nor are any of the other pilots who are landing, selling their shit and taking off again. So I’ll have to go walkabout on the planet to find it. I know know where to find zinc (I’m learning!), so off I toddle to grind out the resource. Only this is a totally unique planet that I discovered half an hour ago (it’s named after one of my kids) and on the way to find the zinc I discover half a dozen new species of animal, a proper **** of a giant plant that stings me when I get close to it, a weird alien monolith that vibrates some kind of message to me and then get lost in a massive cave system with all kinds of bioluminescent flaura and fauna. Zinc. Oh yeah the zinc. Now I like this. I like being distracted. Not in a grand theft auto nihilistic style, but genuinely getting sidetracked by things that you know are completely unique to this world.
Does Elite or Spore do this? If not, then no, it’s not the same.