March 2016 NPD Thread! Hardware and software up!

[CosmicSex]

Aquamarine said:

Zanten said:
Soooo this has probably been brought up somewhere in the thread before, but just in case, looking at Microsoft's NPD PR statement;

“In March, global hours spent gaming on Xbox One increased 89 percent compared to last year. Xbox Live engagement was driven by the greatest games lineup, including new titles released in March like ‘Killer Instinct: Season 3’ and ‘Tom Clancy’s The Division.’ ‘Killer Instinct: Season 3’ has seen record engagement across Xbox One and Windows 10 since it launched on March 29, making March the best month ever for the franchise with more than 6 million unique players. Last week, on April 5, we launched ‘Quantum Break’ to critical acclaim and it became the best-selling Xbox game around the world, and is now the biggest-selling new Microsoft Studios published IP this generation. We can’t thank our fans enough for their continued support and we’re looking forward to bringing more unprecedented experiences on Xbox One, Windows 10 and Xbox Live later this year.”

 

Can you qualify this bolded text. What is the next biggest-selling new Microsoft Studios published IP this generation?  Is there such a thing or is this statement some sort of term of art?  What does biggest-selling mean?  If it was the best-selling... wouldn't they say that?