Microsoft on Monday announced that its Xbox brand broke records during the all-important holiday season.

In a post on the Xbox Wire, Microsoft said on December 28, more people logged into Xbox Live than any other day in the history of Xbox. A specific user figure was not divulged.

In addition, the number of hours spent gaming across Xbox One and Xbox 360 during Christmas week (December 20-December 27) were up compared to last year, according to Microsoft's estimates.

As for Xbox One console sales, Microsoft did not share any numbers. However, the company said the Xbox One remains ahead of where the Xbox 360 was in terms of unit sales at the same point in time. The Xbox One remains the best-selling console, on that basis, in the history of Xbox.

In terms of game sales, Microsoft said all of its first-party holiday games sold over 1 million copies. These include Halo 5: Guardians, Rise of the Tomb Raider, Forza Motorsport 6, and Gears of War Ultimate Edition. In addition, "the number of Xbox One gamers who played Microsoft Studios-published titles more than doubled compared to 2014," Microsoft said.

Here are some other 2015 Xbox stats, as compiled by Microsoft:

We released over 200 new features for gamers in 2015 including the New Xbox One Experience and the most-requested feature, Xbox One Backward Compatibility.

More than 350 games were released or were made playable on Xbox One in 2015 (including first and third-party, ID@Xbox and Xbox One Backward Compatibility titles), fueling progress toward our goal of delivering the largest games catalog ever on Xbox.

Xbox gamers earned over 4 billion achievements and racked up a total Gamerscore of over 77 billion in 2015.

In 2015, the Xbox community cast over 6.5 million votes on Xbox Feedback.

Since Xbox One Backward Compatibility released on Nov. 12 with more than 100 playable titles, global Xbox gamers have logged more than 15 million hours playing Xbox 360 games on Xbox One.

Looking ahead, Microsoft also claimed that it's planning to "go even bigger" in 2016. Microsoft will release at least 12 exclusive games for Xbox One and PC next year, and will continue to deliver new features such as Cortana voice support on Xbox One.

Check out this post to learn more about Microsoft's plans for 2016.