Have you played Subnautica? It's a lot like that, placing base structures that snap together and then decorating/adding plants and things. Plants can be grown to generate resources. There is a quest line regarding base building too.

At first you could only make bases at designated locations you would have to find. Now you can build basically anywhere (I've seen underwater bases and bases that look like they are in low orbit, but its just really high up).

You can also get a freighter which then allows you to have more than one starship (park them in the freighter). The frighter can also hold a base and can be summoned in space wherever you go.

Teleporters let you return to your bases from other star systems so you can keep exploring while being able to return to a planet or base you really like.