https://www.reddit.com/r/FreeGameFindings/new/

You need to buy any game with trading cards - http://psteamproxy.yuanyoumao.com/search/?category1=998&category2=29

Nope :/

What about free to play games like Team Fortress 2 or Dota 2?
Free to play games drop game cards based on your in-game purchasing. For every $9 USD spent (approximate) since the start of the Steam Trading Card Beta, you will earn one card drop. This card will drop at some point as you play. If you have made in-game purchases in Dota 2 or Team Fortress 2 prior to the Steam Trading Card Beta, or if you owned Team Fortress 2 prior to the Free to Play update, you will have 4 or 5 additional card drops available.

http://psteamcommunity.yuanyoumao.com/tradingcards/faq

Buy more games, idle more cards.

Максимум запустится 30, если не ошибаюсь. Проблем не будет.

Is there a limit to how many trading cards can drop?
Most games will drop a number of cards equal to about half the number of cards in that game's set of cards. For example, Half-Life 2 has 8 cards in its set, you can receive 4 card drops by playing it. You'll need to collect the other half of the set from other community members. Try the beta group discussions, community market, barter with friends, and trade discussions. You can check how many drops you have remaining on your badges page.

http://psteamcommunity.yuanyoumao.com/tradingcards/faq

You need to buy more games to idle cards from them.

> unzip
> read Documentation/Setup Instructions - Start Here.pdf
> setup all in settings.txt
> start start.exe
> profit
;)

Nope.

Is there a limit to how many trading cards can drop?
Most games will drop a number of cards equal to about half the number of cards in that game's set of cards. For example, Half-Life 2 has 8 cards in its set, you can receive 4 card drops by playing it. You'll need to collect the other half of the set from other community members. Try the beta group discussions, community market, barter with friends, and trade discussions. You can check how many drops you have remaining on your badges page.

http://psteamcommunity.yuanyoumao.com/tradingcards/faq

引用自 $Luke ☬：

what can i do to make all 5 levels of one badge ?

Buying/trading cards from Steam Community Market.