Elite Dangerous... The whole galaxy in 1:1 scale, for any explorers out there. I have about 19 hours of gameplay right now and it is slowly becoming one of the best games I've played. I have the normal version, the expansion allows you to land on planets. The main three ways you can play this game are either explorer (selling your data once you've come back from a deep exploring travel), bounty hunter (name says it all
, space combat!) or trader (kinda hard to be efficient but there are tons of help for that). When you start, your missions are basically getting merchandise from point A to point B, then when you get money you can upgrade your spaceship and look for other types of missions. There is also a whole interesting storyline full of politics.
Here is a short video of me finding a double sun while jumping from system to system (I was getting merchandise to another system) through FSD.