In total, the franchise has raked in over $1 billion. Five million copies of Borderlands 3 went out in just the first five days after the game was released. Borderlands has sold over 53 million copies, putting it well ahead of other huge competitors like Far Cry, Mortal Kombat and even Fallout. It's up there with things like GTA and Fortnite in terms of popularity and success, and that is no joke.
The Borderlands franchise is a certifiable monster at this point, and it can't be denied.