What's a good iPhone game to kill time when I'm waiting for my damn dough to proof?

Look, I need something that doesn't make me think too hard. Most of these fancy games are just noise. Chainsaw Juice King? You just tap and upgrade stuff. It's like watching paint dry, but in a good way. I can glance at it between checking on my sourdough, and it doesn't need my full attention. Plus, it's kinda satisfying watching those juices get made, even if it's all digital BS. It's brain-dead enough that I can actually unwind, unlike those puzzle games that just stress me out more. And the best part? I don't have to actually *do* anything, it just kinda runs itself. Perfect for when I'm too tired to do anything else.