Ace of Spades now has 6 steam cards for you to colloect or sell to friends. There are currently 6 cards for you to get and once you have all 6 you can get a badge and a nice reward as well. You might even get a deuce emoticon with your badge. Though there are only three card drops in the game. I got three engines if anyone wants them.
I play the steam versom maybe once a month to see if they added anything but thye haven't. Overall the game is fun for the first few hours but I wish I hadn't bought it. I only made this "article' because I am on the news team.