On June 10, 2014, a new Mysterious card set appeared on Steam. One card from the set was received when any other badge was crafted. On June 19, the cards changed into Steam Summer Adventure 2014 cards.
On June 10, 2014, a new Mysterious card set appeared on Steam. One card from the set was received when any other badge was crafted. On June 19, the cards changed into Steam Summer Adventure 2014 cards.