Today’s the day.

Microsoft’s highly touted “Countdown” Xbox digital game sale–which the company is calling the “biggest” sale of all time on Xbox Live–has begun with offers on a huge variety of Xbox One and Xbox 360 games.

Some of the featured “Countdown” deals for Xbox One include:

• Rise of the Tomb Raider — $40
• Rare Replay — $25
• Ori and the Blind Forest — $10
• Grand Theft Auto V — $42
• Dragon Age Inquisition — $18
• Destiny: The Taken King – Legendary Edition — $40
• Batman: Arkham Knight — $32.49
• Madden NFL 16 — $24
• The Witcher 3: Wild Hunt — $30

Head to Major Nelson’s blog here to see all of the Xbox One and Xbox 360 deals, but note that they also include the regular, weekly Deals With Gold offers. Xbox Live Gold members will save an extra 10 percent.

As part of the “Countdown” event, Microsoft will also offer daily deals now through December 31. Today’s offers are as follows

• Need for Speed (Xbox One) – $24
• Need for Speed Hot Pursuit (Xbox 360) – $4
• Popcap bundle (Xbox One) – $15

These offers are good now through December 28, while a new batch of deals go live starting December 29 and running through January 7. Click any game link in this post to get your downloaded started right away from the Xbox.com store.

A variety of movies and TV shows are also marked down.

Keep checking back with GameSpot for more Xbox daily deals and other offers throughout December.