Meanwhile, WarioWare Gold mysteriously appears in the top 10.
Followed by NBA 2K20 and Madden NFL 20.
Seven Call of Duties and two Rockstar titles make up almost the entire list.
The season will go past the original date.
Mega-Mix arrives as a new character along with a new track, new karts and much more.
Only Pokemon surpassed it.
Gun Game has also been added to the Quick Play Filter.
Issues like map exploits in Ground War and Platinum skins not unlocking are also being tracked.
Grand Theft Auto 5 topped the most downloaded games list on the store in Europe.
5v5 Shipment 24/7 and Gun Game also added as playlists.
It's been an eventful 12 months.
It's followed by Call of Duty: Black Ops and Minecraft.
Dr. Kawashima's Brain Training for Nintendo Switch also manages an impressive debut.
Treyarch's David Vonderhaar doesn't seem to be too fond of jetpacks.
Art director Joel Emslie says more loadout slots may be slated for the next update.
Call of Duty: Modern Warfare comes in at second place with just over 1 million units sold.
The top 5 is entirely unchanged.
Both titles were in the Platinum tier for 2019's top-sellers, best new releases and most simultaneous players.
FIFA, Star Wars, and many others also see sales surges ahead of Christmas.
The juggernaut series continues on with big sales.