Online slots players at Ladbrokes will soon have a whole new range of titles to enjoy after the online casino agreed a multi-year deal with US gaming developer Williams Interactive.The agreement will see Ladbrokes add a selection of slots include popular Vegas favourites Spartacus: Gladiators of Rome, The Wizard of Oz: Ruby Slippers and Crown Games as well as the recently released Zeus III.Richard Poole, Head of Product for Ladbrokes Digital, is delighted with the new partnership, describing it as “an exciting opportunity to extend enjoyment of those themes for our players online and on their mobile devices.” “In addition, their (Williams Interactive's) wide array of one-of-a-kind game engines like Colossal Reels™ and Double Money Burst™ are already exciting online players across Europe, and will provide new and engaging casino options for our player community.” The complete Williams portfolio is expected to be available to Ladbrokes' mobile and desktop players by the middle of the year.