Trading cards question

separate game, separate options. if no cards shown, there are no cards

Hi Snbac

No there are no trading cards for SD Definitive Edition.

Despite there being no trading card icon listed this doesn't always mean there are no trading cards for the game. That icon isn't an automated thing, it actually has to be enabled by the dev, so sometimes this is not updated. There is an SG topic that posts such games:
https://www.steamgifts.com/discussion/zaE7V/games-that-have-cards-and-many-do-not-know
I don't find that topic particularly useful myself, I usually just check Steam Card Exchange and browse for the game:
https://www.steamcardexchange.net/index.php?showcase

Also for trading cards to be enabled for a game, one of the requirements is that they must sell (via Steam Store), a certain number of copies, for Sleeping Dogs I think if you had the original you got automatically upgraded to the Definitive Edition, so all those copies don't count. It may have taken them a few years to actually reach the target that Steam had at that time (I think they have lowered it now), however the devs, United Front Games, closed down about 2 after Definitive Edition released. As such the option has never and will never be activated for this game.

Hope this answers all of your questions.