CD Projekt RED released a new developer video today for The Witcher 3: Wild Hunt - Hearts of Stone. Hearts of Stone offers up new quests and characters to the base game of The Witcher 3. This video features Len De Gracia, Senior Environment Artist, Jose Teixeira, Senior VFX Artist, and Borys Pugacz-Muraszkiewicz, English Adaptation Director all talking about the game, their "DLC philosophy," and the Hearts of Stone expansion.