Dead Island Riptide had Steam trading card support added on 17 July 2013. There are 5 cards in the series, and you'll receive 3 cards at random for purchasing and playing the game.
The game has since gotten a remaster, which has its own separate set of trading cards. In addition, other games in the series, Dead Island (and its remaster and Dead Island: Epidemic also have trading card support.
This game was featured as a card in the Steam Summer Getaway set.
Trading Cards
Foil Cards
Badges
Booster Pack
Emoticons
Profile Backgrounds