King's Bounty: Armored Princess is a game for Windows computer. This game worth $19.99, but you can get this for $3.74 or a Free demo. If you get the demo of the game for free you can get a $5 credit for your Amazon App store
Remember this offer is only for the persons who are having a US billing address.
1. Just visit the King's Bounty: Armored Princess page on Amazon
2. Get the Free Demo
3. Complete the process. You need not to download or install the game
4. You will receive a $5 app store credit email later.
You will have to wait some time to get this amount to be credited on your account. You can use the credit to buy something from Amazon App store.