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- Blizzard's Eric Dodds explains why Heartstone is so similar to many popular collectible card games.Blizzard has had remarkable success with its digital collectible card game, which makes lead designer Eric Dodds' recent GDC 2014 talk about the game's design especially interesting for anyone looking to better understand howwas made -- or how Blizzard's design process is evolving to embrace the mobile market.To hear Dodds tell it, theteam took an appreciation for physical collectible card games and figured out how to adapt them into a digital format that leverages the unique strengths of Unity to create a game that's easily accessible and playable across both PC and tablets. Along the way they codified what they learned into discrete nuggets of design theory, some of which Dodds shared during his talk.We've taken the liberty of embedding the free video of ": 10 Bits of Design Wisdom" above, but you can also watch it here on the GDC Vault.In addition to this presentation, the GDC Vault offers numerous other free videos, audio recordings, and slides from many of the recent Game Developers Conference events , and the service offers even more members-only content for GDC Vault subscribers.Those who purchased All Access passes to recent events like GDC, GDC Europe, and GDC Next already have full access to GDC Vault, and interested parties can apply for the individual subscription via a GDC Vault subscription page . Group subscriptions are also available: game-related schools and development studios who sign up for GDC Vault Studio Subscriptions can receive access for their entire office or company by contacting staff via the GDC Vault group subscription page . Finally, current subscribers with access issues can contact GDC Vault technical support