Assassin's Creed 3
Zombi U
Sonic Lost World
Sonic & All-stars Racing: Transformed
Ducktales
Black Ops II

There's more 3rd party games I want to pick up. Just waiting since I don't have the time to play them all. My list of Nintendo games that I need to pick up is actually longer since I only own NSMB U at the moment.

Call of Duty: Black Ops 2
Sonic & All-Stars Racing Transformed
Lego City Undercover (first-party published)
Rayman Legends
The Wonderful 101 (first-party published)

5 out of 11.

10 of 15 in my collection are Third Party

ZombiU
Batman Arkham City: Armored Edition
Trine 2: Director's Cut
Neo Nano Assault
Scribblenauts Unlimited
Injustice: Gods Among Us
Rayman Legends
Duck Tales: Remastered
Wonderful 101
Sonic Lost World

10 out of my 13 game collection, all physical:

Call of Duty: Black Ops 2
Batman: Arkham City
Resident Evil: Revelations
Splinter Cell: Blacklist
Call of Duty: Ghosts
Need for Speed: Most Wanted U
Batman: Arkham Origins
Deus Ex: Human Revolution Director's Cut
Rayman Legends
Assassin's Creed IV: Black Flag

I think the only 3rd party release I have is Zombi U.

I'm sure the Wii U versions of Sonic and Lego City were actually published by Nintendo making them 1st Party (or 2nd Party).

The Wii U games I currently have:

Lego City Undercover
New Super Mario Bros U
Nintendoland
Pikmin 3
Zombi U

So yeah... 20% 3rd party.

The only first party Wii U game I have is Mario 3D World, so that makes 4/5 third party.

batman AC, zumbiU, trine, NAN.
want: batman:AO, lego city, sonic, rayman legends, splinter cell, project cars.

6/10

I have 2/8! The two third party games I own are Monster Hunter 3 Ultimate and Rayman Legends.

So far, Zombiu,, Scribblenauts:Unlimited, AC4, COD:Ghosts

Plan on having more 3rd parties soon. Watch Dogs and Bayonetta for sure, maybe Wonderful 101, and a crap load of upcoming indies.