4 things you should know before jumping into 'No Man's Sky,' one of the biggest games of the year

After years of anticipation, we'll finally be able to get our hands on "No Man's Sky," an unimaginably massive game about exploring a universe that was generated entirely by math. Boasting a reported 18 quintillion planets for players to explore, people are naturally incredibly excited about the seemingly endless possibilities in the game.

Still, the game has been plagued by many questions since it was announced. What do you actually do? Is it truly endless? Is this going to be the last game you ever need to buy?

To help clear things up, here's an explanation for the four main components of the game: Explore, Fight, Trade and Survive.