UPDATE: The giveaway has ended. Either it was just a price bug, or Ubisoft will launch it again later.
To get a FREE Valiant Hearts: The Great War game and keep it forever, you need to:
- Visit Valiant Hearts: The Great War store page
- Press "GET IT FOR FREE" button and login with your Ubisoft account
The game will be added to your Uplay library. Enjoy!