Starman: Tale of Light (iOS) for Free via Apple Store App

Steps:
1. Open the Apple Store App or download for free here
2. Tap on the Featured App in the Discover section of the Apple Store app
3. You'll be Re-directed to App Store's Redeem Code screen (redeem code box should be Pre-filled)
4. Tap Redeem in the upper right corner
5. Total should be free