False advertising. Buy it, then demand money back because they lied to you.

IndieGala pulls the card information from the Steam store page which in this case incorrectly shows trading cards for the game.
There are none available on the market and you can also check SCE.
Maybe they will have cards in the future, but it's incorrectly to list them in the chart as long as they don't drop currently.

Do you mean the new system in which you receive a password together with your gift link (usually in the same email, or if you access old gift links then you will receive new mails with the password)? Or is it something else?

GroupBuys are even cheaper than the initial Tier2 :) (usually the final prices are around $1 per bundle)...

I guess its a thing..

http://steamcommunity.com/app/735260/discussions/0/1479857071250260820/

smh.. getting achievements for doing nothing. Hopefully it's just a bug but I guess with extremely cheap games giving an absurd amount of achievements they've already lost their meaning. Achievements are basically just a +1 now a'days.

I have the same problem (keys from IG + Otaku Bundle #17).

If you send the old key to the dev he sends you a new one within a day. Very nice way to handle this.