No, it is not the day of "dead", but simply the day dedicated to titles that have the word "Dead" in the title. Today only you can purchase on the Marketplace to super discounted price Killer is Dead , Dead Or Alive: Ultimate 5 , Left 3 Dead 2 with its Add-ons and the Undead Nightmare DLC for Red Dead Redemption . The following list and link to the store.

Contents	Title	Discount%
Killer is Dead	Games on Demand	67%
Dead or Alive Ultimate 5	Games on Demand	67%
Left 4 Dead 2	Games on Demand	66%
Left 4 Dead 2: Cold Stream	Add-on	75%
Left 4 Dead 2: The Sacrifice	Add-on	75%
Left 4 Dead 2: The Passing	Add-on	75%
Red Dead Redemption – Undead Nightmare Pack	Add-on	50%