I checked the list of Wii games to see how 3rd party games are doing. 14 games have become million sellers and nearly 50 have gone on to sell at least a half million. Some people complain there isn't enough games for hardcore taste and while still not as much as the Xbox 360, I think the Wii has a good selection of games for a system that still hasn't been out for two years yet. And there are plenty of games coming out in the next few months.
I've only listed games that have come out and done very well or have gotten mostly positive reviews that I know of. Most of the games listed can be considered "hardcore" and some are just listed because they sold so well. There might be some games where I might be mistaken and the reviews weren't that great and I might have left out some games as well.
Mario and Sonic At The Olympic Games
Guitar Hero III: Legends of Rock
Carnival Games
Sonic And The Secret Rings
Resident Evil 4: Wii Edition
Lego Star Wars: The Complete Saga
Rayman Raving Rabbids
Rayman Raving Rabbids 2
Game Party
Resident Evil: Umbrella Chronicles
My Sims
High School Musical
Red Steel
Smarty Pants
Cooking With Mama: Cook Off
Deca Sports
Naratu: Clash of Ninja Revolution
Madden (3 games)
Tiger Woods (3 games)
The Simpsons Game
FIFA 08
Lego Indiana Jones: The Original Adventures
WWE Smackdown Vs. Raw 2008
Dragon Quest Swords
Pro Evolution Soccer 2008
Dance Dance Revolution: Hottest Party
House of the Dead 2&3
Sega Superstars Tennis
We Ski
Super Monkey Ball: Banana Blitz
Big Beach Sports
Need For Speed (2 games)
Star Wars: The Force Unleashed
Sonic Riders Zero Gravity
Trauma Center (2 games)
Boom Blox
Rock Band
Guitar Heo Aerosmith
Ghost Squad
Spider-Man 3
Zack and Wiki
Dragon Ball Z
Boogie
Call of Duty 3
No More Heroes
Top Spin 3
The Bigs
Marvel Ultimate Alliance
Elebits
Bully
Bleach
Medal of Honor: Heroes 2
SSX Blur
Lego Batman
Prince of Persia
Nights: Journey Into Dreams
Manhunt 2
Super Swing Golf
Tony Hawk (2 games)
Pinball Hall of Fame
Okami
Mortal Kombat
Dewy's Adventure
The Godfather
de Blob
Bomberman Land
Metal Slug Anthology
Scarface
Heatseeker
Sambe de Amigo
Major League Baseball 2K8
Mercury Meltdown
FIFA Soccer 09 All-Play
MLB Power Pros (2 games)
SimCity Creator
SNK Arcade Classics
Harvey Birdman
I think there are many excellent games in that list that have done very well along with a lot of sleeper hits and quite a few other good games that slipped through the crack and didn't sell well. With all those games and those coming out soon, there is a lot to choose from in my opinion. So if you honestly think you can't find a game to play or think there aren't many good 3rd party games, you just aren't looking hard enough.
I'll come up with something better eventually...
