Thanks for your help, and for your entertaining additions, as well!
"Dice World" and "World Of Dice" are both used over the internet, so I'm not sure that I can use them safely.
The German counterpart seems to be no problem.
Maybe, I should use something like "The Hidden World Of Dice" or "The Unknown Dice World", but that is too long.
Maybe, "Lost Dice". (Mm, maybe, I go for that.)