Pinball afficianados have found a lot to love on the App Store, but if you’re looking to trace it’s lineage back to a very specific point, it’s the release of Pinball HD. This is the game that proved to the world that pinball was a brilliant fit for the iPad, and it still holds up wonderfully.

How wonderfully? You can find out right now without spending a penny. The game has dropped to free (and is now universal, so iPhone users can check it out too), but no specific reason was given.

We’re guessing this is the first in an onslaught of iOS game sales this weekend to celebrate the iPhone 6 launch. We can’t say for sure when the sale will end, so get on it while the getting’s good. Download Pinball HD from the App Store now.