You are a snake. Not a normal one, though. Unlike the others, you were born with two heads. Alone in an unknown underground place, you must find your way to the surface. For that, you have to learn how to use your unique movements, as you control both of your heads at the same time. Climb walls, open doors, push blocks, manipulate gravity and even find the mysterious magical food, as you challenge your wits and reflexes. Features More than 50 official story levels to play. Create your own levels and share them with the community! Alternative playstyles as the game progress. Play with separated heads or even a single one. No dialogs. Experience the story completely through gameplay.

— Activation Details —

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.