Update:

Have Reus, look for Prison Architect and Tomb Raider

Is it me, or does Prison Architect seems to be harder to get that the other cards?

Haha, not only you. I also already noticed. Fuck that card.

Tagging

At the moment?  Yes.

http://steamcommunity.com/profiles/76561198003014739/

Urgh, if this thread had arrived earlier, I wouldn't have placed my card for sale. Anyone know how to retrieve it?

I still however have the Dead Rising Steam Getaway card up for trade if anyone is interested. I would like some Dungeons of Dredmor cards ideally, as from tomorrow I may require some Tropico 4 cards.

You go to "Steam Market" and it will list your items up for sale.  Then click remove.  Assuming it hasn't sold.

Thanks! I now have Inconsequncia from Dungeons of Dredmor (hell, I think I'm the only one who plays that game.) and Dead Island Steam getaway up for grabs, in return I would like other DoD cards 

Nah, i've got a Brax Dungeons of Dredmor card.  That said i'm good on the steam summer giveaway cards.  Either only want to complete my set using other steam giveaway cards or trade them for other game cards like you are doing.

Once this is over though I do plan to write out a big list and offer cards for other cards to complete some sets.

Just realise that there's a "shiny" system in place, saw some on sale in the market place. How do people get those?