Cards and Castles had Steam trading card support added on 13 November 2015. There are 10 cards in the series, and you'll receive 5 cards at random for purchasing and playing the game.
Trading Cards[]
Paladin
Cleric
Bushido
Assassin
Dread Pirate
Cannoneer
Warrior
Iceweaver
Acolyte
Pyromancer
Foil Cards[]
Paladin
Cleric
Bushido
Assassin
Dread Pirate
Cannoneer
Warrior
Iceweaver
Acolyte
Pyromancer
Badges[]
Level 1
Viking Crest
Viking Crest
Level 2
Pirate Crest
Pirate Crest
Level 3
Ninja Crest
Ninja Crest
Level 5
Crusader Crest
Crusader Crest
Booster Pack[]
Emoticons[]
Profile Backgrounds[]