All you need is Multiverse, makes dialogue choices more interesting than "We will destroy you." can lose/gain standing with factions based on your interactions, if you blow up too many of their ships people will refuse to trade with you. Has more races, I think there's 130~ ships to choose from, more weapon/load out customizations and the difficulty has been increased along with bonus boss battles you can get through various quest chains that give unique weapons. It takes a while to get used to everything but really breathes a lot of replayability into the game.