From the Source: Square-Enix - 2015 Holiday Surprise Box! WTF is this?

 

"What will be in the box? Heck if I know... but if you get your hands on it... you will find out." :p

 

The 2015 Holiday Surprise Box from Square Enix

For just $9.99, you will receive a surprise selection of our most exciting PC digital games worth over $80! Stuffed with 5 games, this is one holiday treat you just can’t pass up! The contents of this exclusive deal will be announced and delivered after 12:00pm on December 18th, 2015. Offer Valid: 12/8/2015 12:00am PST ~ 12/17/2015 11: 59pm PST More information can be found at the Square Enix store here: https://store.na.square-enix.com/