Yeah, I mean sure, if that's what you're into. I can play textbook for a sec. Once upon a time ancient aliens fucked around on a bunch of planets, and now we only have leftover artefacts and Eridium veins to show they were even there. But they did leave behind vaults of treasure. If you could find a mystical vault key, and the hidden vault, and defeat the vault monster that guarded it, the treasure became yours. And that's how I became a trillionaire and saved the planet from the, you know, big friggin vault monsters.

[ this is actually only 3% bullshit, borderlands is weird. ]