Now you can see how the royal saga began. Shovel Knight: King of Cards tells us the prequel story of King Knight, as he travels through his realms in search of an adventure. Apart from new platform challenges, the game introduces a card game called Joustus. It enables the player to engage in multiple card battles and collect his own deck as the game progresses.
King of Cards is a standalone adventure that is also included in Shovel Knight: Treasure Trove. Its owners will receive King of Cards as a FREE update to their game.
Source:: GOG – Good Old Games