Since the previous post was misunderstood and even reported as spam, I want to state that the minigame exists in the official gloryhammer website (I even verified it from Wikipedia JIC).

Instead of posting the direct link, navigate to it yourselves to see this weird minigame, which can be found as the rightmost entry in the navigation bar.

In this casino you can't spend nor earn any money that I saw, and I posted it because I found it weird, a gag, or possibly a reference to something new.