Blizzard's latest hit, the card game Hearthstone, can be played online. Just like every other Blizzard game. But, for reasons known only to higher powers, the company wants you to leave your home and play Hearthstone with other people. In the flesh.
Braving both the elements and direct interaction with another member of your own species will get you a fancy card backing (above), which in games will let your reclusive opponents know you're just that little bit braver.
To get the backing, you need to be playing with at least two other people with the game's "Player Near Me" function.