Kings of Kung Fu had Steam trading card support added on September 30, 2015. There are 6 cards in the series, and you'll receive 3 cards at random for purchasing and playing the game.
Trading Cards
Legendary VS. "Kumite"
Legendary VS. "Colosseum"
Legendary VS. "Dragon Fight"
Legendary Character "The Drunk"
Legendary Character "Teacher"
Legendary Character "Beauty"
Foil Cards
Legendary VS. "Kumite"
Legendary VS. "Colosseum"
Legendary VS. "Dragon Fight"
Legendary Character "The Drunk"
Legendary Character "Teacher"
Legendary Character "Beauty"
Badges
Booster Pack
Emoticons
Profile Backgrounds