How to create a long 2D map?

Question

Unity

The task before me is to make not just a small map at once, but to create a full-fledged story area in which the "Protagonist" will visit more than once. I had ideas about this, such as "Make the map one big drawing in several layers" or "Split the map into components, and then connect them like a constructor", but I want to ask the opinion of the experienced. So how would you make/do/would make a long enough map?

Answer 1

I would do it for a long time.
I thought there, distracted.
As inspiration comes, I would add something.
And when the deadline would come, I would stuff all the offal.
Hope my answer was helpful.

Answer 2

So recently tile cards were brought up.
Quite a good option.
Article on Habré
Documentation

Answer 3

2D maps in games are usually (in my non-professional opinion) made composite. Sometimes you go to some kind of "dible", the piece did not load and, bang, you are "out of the world". Well, most likely in layers, that is, the basis (presumably - a path map, although it seems to be then programmatically set), the environment, interactive objects.