Fantasy sports startup DraftKings has raised a $7 million Series A, led by Atlas Venture, to continue its mobile-focused daily games.

As the company celebrates its one year anniversary, it has launched contests in six different sports and reached one million users.

“DraftKings’ average user spends over three hours per week on the site and plays 2.6 different sports. We were amazed to see how popular fantasy basketball became with our fantasy football customers, and we are now seeing similar conversion from fantasy basketball to fantasy baseball,” said DraftKings CEO Jason Robins. “Our products provide a true second screen complement to the sports viewing experience, and we see our highest levels of engagement during the actual games themselves.”

DraftKings raised $1.4 million back in July of 2012 from Atlas, Boston Seed Capital, Hub Angels, Angel Street Capital, and other angels.