Mojang's hit sandbox game Minecraft made its Xbox debut on Xbox 360 four years ago today. To celebrate the milestone, Microsoft and Mojang have announced they are giving away DLC to everyone who owns Minecraft on Xbox 360 and Xbox One--but only for a limited time.

The 4th Birthday Skin Pack, which features new mob-themed t-shirts for Alex and Steve, will be free for one week only, now through May 16. Additionally, if you only recently picked up Minecraft, you may be happy to learn that Birthday Skin Packs 1, 2, and 3 are also free.

You can queue up your downloads through the links below.

Xbox One:

Xbox 360:

Minecraft was released for Xbox One in September 2014.

In other news about Minecraft, a Super Mario Bros. Mash-Up Pack is coming to the Wii U version on May 17. This was announced today, and you can see a video and some screenshots here.