Airport Madness: Time Machine had Steam trading card support added on 23 September 2015. There are 6 cards in the series, and you'll receive 3 cards at random for purchasing and playing the game.
Other installments in the series, including Airport Madness 4 and Airport Madness: World Edition, also have trading card support.
Trading Cards[]
Foil Cards[]
Badges[]
Booster Pack[]
Emoticons[]
Profile Backgrounds[]