Once you've collected a set of cards you can craft them into a game badge. Like the current badges, they are tied to your account and are shown on your profile.
Steam Trading Cards are collectible cards you get by playing games on Steam. You can get trading cards simply by playing one of the participating games.
You can get trading cards simply by playing one of the participating games. As you play, you'll occasionally receive trading card drops which will be placed in.
You can collect them/trade them/craft badges with them if you care, and if you don't you can sell them for money in your Steam wallet.
And if so, do you still? And if so: why? I've tried to understand the allure of Steam Trading Cards before, and despite briefly being entranced by.
But that, too, can have its long-term advantages: by collecting cards and using them to level up your account, you can increase your card drop.
If you read my account of being sucked into the madness that is Steam Trading Cards, you probably thought to yourself "Wow I wonder if I can.