Your site seems interesting, but when I tried registering myself, an error page prompted up with the error 'OOPS ...NOT FOUND (#404).
TRY TO GET BACK OR VISIT OUR HOME PAGE! THE REQUESTED PAGE DOES NOT EXIST' Please check what is wrong with the site which is causing this.
What is your purpose of trying to register here in endorphina official website or what makes you attracted to register?
Is there any benefits that you will get by registering, or it is because you think that it is a casino website so you want to register?
Btw, I'm wondering can a slot provider run the competitions we are talking about, or only an online casino can do it?
They can if they wish, why not?
Many providers run competitions globally (players can participate in any casinos where the provider is available), so endorphina can do it as well in this forum.
They can simply create a competition such as what you mentioned (multiplier contest) and participants should play their games no matter where players want to play the game.