iGaming Business – UK bookmaker Ladbrokes has signed a multi-year agreement to add the entire portfolio of online slots games from the Williams Interactive subsidiary of Scientific Games. Through integration with the Williams Interactive Remote Game Server, customers of the official Ladbrokes website will have access to a library of Vegas-style slot games such as ‘Spartacus Gladiators of Rome’ and ‘Zeus III’. A number of the online slot titles are already available to customers in the bookmaker’s betting shops, courtesy of an existing arrangement with Scientific Games’ SG Gaming UK division. “The expanded access to themes already popular in our…