The first expansion to Euclio, Euclio: Extra! adds five new boards and accompanying suit cards to make your games even more varied and interesting. Some of the new boards are a bit more complex, therefore recommended for Euclio veterans, but all retain the general simplicity of play Euclio has always had. Euclio: Extra! adds auctions, more opportunistic play, and even a board/suit that benefits if you DON'T place your scoring markers! Get ready to twist your brain navigating the new difficult decisions inside. Simply add to your Euclio box and experience a new mixture of boards and suits! Expansion! Euclio Required to play!** -description from designer