Description
When the King of All Cosmos accidentally destroys all the stars in the sky, he orders you, his pint-sized princely son, to put the twinkle back in the heavens above. Join the King and Prince of Cosmos on their wacky adventure to restore the stars at home or on the go – now in full HD!
Go to: http://store.steampowered.com/ and download STEAM client
Click "Install Steam" (from the upper right corner)
Install and start application, login with your Account name and Password (create one if you don't have).
Please follow these instructions to activate a new retail purchase on Steam:
Launch Steam and log into your Steam account.
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process.
After successful code verification go to the "MY GAMES" tab and start downloading.