Thanks!

Add on steam for gift!

Thanks for the tip on Super Dungeon Tactics about installing a new game to get the cards to drop. I had 10 hours in with no cards, and when I checked my badge progress before following you tip, I was told I had 0 cards remaining. Now it has dropped 3 of the 4 cards.

I would have commented on the original post instead of here, but the thread was closed.