How do you make a good username for a game

Think of something you like, if you have to add numbers like 69 4423 or have to tag XX on the beginning or ends of the name, chances are it is not a good name. Also try not to have names that are a sentence like Greatfaithtammy or Dogfarts , those are examples of not good names, though mashing together some names like Jaderiver or Skymoon are cheesy, but are partially a name. Or just faceroll until you come up with something you like, for example Arrandoral or Mageangoer, Kxeron, those were generated just from typing things randomly.