Why is this here? I like a nice Carmeli's game as the next point and click enthusiast but I thought you said no casual games? If you wanna play it that bad just go for it and get it out of your system, it takes on the bottom side of about 1 hour to finish if you don't get stuck too bad (also video walkthrough is available through the question mark symbol on top left corner).
To the game: There are 5 areas, each area has about 2-3 screens, it is fool (pun intended) of corny halloween jokes, silly voice acting and very extensive language support. It has a few jump scares and a few other easter eggs.
P.s. Why is GaaS set to unkown, is it because flash is being phased out by the big browsers?
You can also download it from https://crowscrowscrows.itch.io/dr-langeskov-the-tiger-and-the-terribly-cursed-emerald-a-whirlwind-heist without the steam client if you are so inclined, but then of course you have no achievements.