Do you play powerball (lottery)?

[Duchess]

What happens if nobody claims it?

It varies by state & states are given a great deal of leeway on how it's used, some of the money may be used to fund further lotteries, it could be used to fund treatment programs & education programs. My state gives you a year to claim your winnings & if you choose to be anonymous that's fine too. It's not likely I would turn my nose up at that kind of money if I had to go public, nope.