The Steam Autumn Sale, which runs Nov. 27 to Dec. 4, is upon us — like so many other Black Friday sales. If you’re like me, you’ll want to recruit a family member or friend to hide your wallet from this cornucopia of discounted games. Do I really need that copy of Marvel’s Spider-Man: Miles Morales when I have it for my PlayStation 5? Probably not, but what if I want to play it on my gaming PC instead? (Please don’t ask me how many items from my library I’ve…