Steam trading cards Booster packs

[Vashyo]

Munkeh111 said:

Vashyo said:
Since they launched, I've got 3 I think.

One every few weeks. I'm a level 10 user

What have you been doing? I'm level 11 and only had 1

I unlocked them all as soon as they came by, though I got boosters on games I consider quite rare. Binding of Isaac, Indie Movie: the game and Psychonauts

U just wait until u get lucky I suppose.