Now this is going to be a tough one. Over the years, we've amassed a pretty hefty collection of free games on our iOS devices, and they range from those that are genuinely free, to those that aggressively push their in-app purchases.
We had two big rules for any of the games on this list. First of all, the free game should offer a complete gaming experience in its own right. Second, a game can have in-app purchases but they should either be cosmetic, or have only the most minimal affect on gameplay (sorry Tiny Tower). With that out of the way, here are the games that deserve a place on your preferred iOS device, and they won't cost you a cent.