Knytt Underground had Steam trading card support added on October 25, 2013. There are 6 cards in the set, 3 of which you'll receive for purchasing and playing the game.
Trading Cards
Foil Cards
Badges
Level 1
Coin
Coin
Level 2
Northern Horse God
Northern Horse God
Level 3
Bell
Bell
Level 4
Owl Mask
Owl Mask
Level 5
The Orb
The Orb
Foil Badge
The Enigma
The Enigma
Booster Pack
Emoticons
:Aunt:
(common)
(common)
:Duck:
(common)
(common)
:InvisibleFace:
(common)
(common)
:Mustachebrows:
(common)
(common)
:Lick:
(uncommon)
(uncommon)
:Spanner:
(rare)
(rare)
Profile Backgrounds
Waterfall Village
(common)
(common)
Garden
(uncommon)
(uncommon)
Mushroom Village
(rare)
(rare)
