Minecraft PC & Mac Code
1. Make sure that you have registered for a Mojang account, and that you own Minecraft on it.
2. Log in to your Mojang account that you own Minecraft on.
3. Click the "Redeem Gift Code or Prepaid Card" button under "Redeem Gift Code or Prepaid Card".
4. Choose "Minecraft Realms" under "Redeem other products". Enter the PIN code found on your card (scratch the silver area on the back to find the PIN code).
5. Your card has now been redeemed. To continue, start Minecraft and log in with your Mojang account.
6. Click the "Minecraft Realms" button that has appeared below "Singleplayer" and "Multiplayer".
7. Click "Create World" and give your new world a name.
8. That's it! You now have your very own Minecraft Realms world!
9. To start playing select your world and click "Play".