A simple list indexed by country name and name of the casino on wikipedia. Who wants to help?
You must know that Wikipedia is not for business advertising and why you think this will be granted?
And besides almost all of the casino gambling via cryptocurrency is accepting bitcoib so what need a list?its just a one type away and google will answer yout queries so no need for Wikipedia
I think the op is an avid user of wikipedia more than google and obviously he wants more precise information rather than scattered information that we can find after using a google search . yet to some people that are on the go , they basically use google for all the stuffs that they want to search of find .
I am not sure there is any Wikipedia page that is highlighting casinos that accept Bitcoin but yes Google has all the information and we can find out much material about gambling sites or casinos which use Bitcoin as payment method. As far I know, there are online gambling sites for example Prime dice that accept the Bitcoin. Keeping in mind, there are many unsafe sites as well so you should find a good one.