NEW YORK — To break out of a federal jail, a suspected Mafia soldier named Christopher Londonio planned to use dental floss as a glass-cutter, Kool-Aid as clothing dye and “lots of bran” to slim down.

There’s a reason that Apple usually invites Epic Games on stage. The developers’ mobile-only series, Infinity Blade and its sequels, shows off the gaming potential of any new iOS device by pushing its ...