(I haven't finished the game per se, but I've played a considerable amount of time)
No Man's Sky is a game that makes me happy. It literally promises the universe, ambition wise, and while it does fall flat on several aspects, you don't get games this ambitious that often. A completely procedurally generated universe with a whole lot of stuff to see and collect, it is a lovely thing and a ginormous time sink I can see myself playing for hundreds of hours