No Man's Sky just got a really big update, it removed a lot of the grind by making backpack space better. They also added a ton of stuff like mining outposts you can build and underwater bases. It was buggier than a bethesda game for a bit, but it's a ton more stable now.
So I'd recommend that.
If you can fork over ten bucks a month for a game, and can stand bad graphics, I definitely suggest a strange MMO called Shores of Hazeron. It's like a weird combination of a first person game, a Sim City game, and a space commander sort of deal.
You basically start on your own planet and you have to build a city from the stone age to the space age, as if it were sim city but each building produces something that another building needs. Then eventually you can build a base on the moon, and you need to go to the moon in order to mine a material that gives you warp possibilities.