The US online gaming group said its British rival infringed its copyright and accused it of unfair competition.
The Pennsylvania-based company said the suit, to be filed in a Federal Court in its home state, alleges that Sportingbet copied its lottery games and is offering them on its sites as original games.
“Sportingbet copied all of our lottery games, unique scoring system, game rules, HTML code and tie-breaker information verbatim,” said RotoPlay President Korey Gardner.
“It\’s very shocking and disappointing to see a publicly traded company such as Sportingbet, so blatantly and wilfully steal our games. What is most puzzling to us is that Sportingbet decided to steal the games even after talking with us for months about licensing our games and using them legally.”