I've grabbed No Man's Sky. It's pretty decent for a game of the genre, though it was massively overhyped with a fair number of launch issues which is where all the negativity is coming from. The game gets pretty repetitive though, but most of the planets do feel fairly unique with a fair number of randomly generated fauna and flora. Interactions with other sentient NPCs though feels really lackluster, and there's a very limited amount of things you can do with them. Also, the language system is pretty annoying to some, but I find it really cool, with you having to go out of your way to learn words in an alien language to understand them, and even then you'll have to stitch their meaning together unless you learn their entire language.
I'd recommend it if you're free roam exploring, and if you don't mind repetitive things, since you basically do the same thing on every planet. I'm enjoying my first few hours into it, but I don't know if I'll ever really complete it, or play it again if I do, even with multiple endings which the game seems to have.