There are landing pages for the majority of the casino games. You can use any of them to attract players to your website.
While promoting casino on forums, social networks, blogs and personal sites, send players to the landing pages with casino games. Attractive landing page with a full demo game will engage users into the game and encourage them to actively sign up to your online casino and gamble on real money.
You can generate the links to the landing pages with casino games in a section named My Landings: http://www.gamblingbuilder.com/mylandings.html (sign in, if you have not already logged in).