Microsoft has announced the first game add-ons for Kinect Sport and Kinect Joy Ride - and the good news is that they are both free.

The complimentary DLC comes courtesy of Samsung for Kinect Sports and Chevrolet for Kinect Joy Ride.

The Kinect Sports Party Pack adds 6 new mini games, 15 new Party Play events and 3 "crazy" mascots. The mini games include SuperStriker for Football, Rapid Burner for Track & Field and King of the Ring for Boxing.

There's also a new challenge feature where you can compete with your buddies and try and beat their mini game scores. Plus, there's 250 Gamer points to be won with 10 new achievements.

The Kinect Joy Ride Chevrolet Car Pack adds a Camaro, Corvette and Cruze to your game and you can customise the colours of your new vehicles, or paint them using the Kinect sensor.

The car pack will be able to be unlocked when you select the Chevrolet ad in the Xbox LIVE Marketplace, so keep your eyes open for any signs of it.

Both DLC packs are out on 4 January - just in time to cheer up the post-Christmas blues.

Kinect Joy Ride review

Kinect Sports review

Launch games for Kinect - all you need to know