When it comes to sitting down and really getting invested in a game, the iPad is the best platform in Apple's portable arsenal, but so many of the most popular free-to-play games are sluggish simulations that aim only to empty your wallet. Luckily, that's not nearly the best the App Store has to offer players who want some great fun without committing some cash. We've assembled our list of the 25 best free iPad games, all of which give you a solid array of complementary content and offer loads of entertainment without a price tag. You won't find any demos or lite versions of standalone premium apps here, though many of these games offer the opportunity to enjoy them further (and support their creators) via in-app purchases.