Left 4 Dead 2 now has trading cards.
If you are in the beta, you can view them in your profile under badges. While we love that the community created their own cards
in lieu of L4D2 being in the first batch of cards, our first series is concentrated on the Special Infected and in the style of the Mutations.
How do you earn the cards?
You receive 4 card drops for owning L4D2. A card drop earns you the right to receive a card by playing the game. You can get four cards to drop by playing L4D2. One problem, you can only get 4 this way. To get the complete 8 you need to trade among friends or even strangers. Who knows, you might even meet your new best L4D2 friend ever trading. You two realize you have more than L4D2 in common, get married, settle down, raise a family and then complete your set when your third son earns the Spitter Card and trades it to you.
What happens when you complete all 8? You can craft an L4D2 badge and earn an L4D2 emoticon item, profile background, chance to get a discount coupon, and 100XP for your steam level.
If you have more questions, we have this extensive FAQ
to help explain the entire system to you. So read it. We will be asking for a book report on it next week.