You can find multiple third party developers publishers that are/were very happy with their game sales on Vita, Wii U, and pretty much every platform that has allowed developers to develop low budget games at low prices. Which means this argument gives zero credibility to the notion that "third party games are selling well on Switch". There's always going to be developers and publishers that are happy with the sales of games on <insert platform here>

Well it's growing for some devs, while holding steady one other devs, and declining for some other devs. You're only focusing on the developers where support is growing and acting like it represents the average third party developer.

Nintendo doesn't need third parties in the same way Sony and MS. Without third parties, Sony or MS wouldn't even be able to sell 15 million units. They do all the heavy lifting on the XBox and Playstation platforms.

Having a healthy third party ecosystem is good enough for Nintendo, it's not about matching Sony/MS, Sony/MS can't match Nintendo's 1st party, if they had to sell a system based on their own titles and not being carried by third parties they'd be out of the business in 3-4 years.

Switch has a chance to carve out a nice third party ecosystem because the demographics of the system are older, the ability to play console style games on the go is an attractive feature for any game pretty much, etc. etc. 

There's only been two real notable Switch 3rd party exclusives ... Octopath and Bomberman R (well one year exclusive) and both are going to sell a million copies. You look at the eShop rankings on the Switch for any territory and they are often dominated by 3rd party titles (I'd say usually 70% of the titles are 3rd party). That's not bad at all. 

There was no benefit to 3P ports on a Nintendo console prior. Garbage online and graphics on par or worse isn't exactly an incentive. Portability won't save every release though (side eye to Wolf II).

As a whole 3rd party support is increasing, so yes i can say that in general 3rd party games are selling well on Switch.

What are the sales numbers for Switch for these titles? I can't find them. Also steam sales aren't the same as ps4 or xbox or even total PC sales. Then you make a generalization about how indies sell on PS4, and assume that generalization applies to the titles in question?

I thought you said you had facts.

Then you randomly bring up overcooked? You openly admit that at best we can assume that it sold less than it did on Steam. How did it fare on PS4 or Xbox? You have no idea.

My Wii U example is just fine. You mentioned 7 games. Seven Two of which are sports games, and four of which are ports/remasters of old games. Whoopdedoo. Notice how EA isn't bring any of its other sports games? Notice how Bethesda isn't bringing Fallout 79 to the Switch (or Fallout 4 for that matter) Notice how Ubisoft isn't bring Assassin's Creed, Ghost Recon, or any of its other major titles, and instead is bringing in the least resource heavy games they can bring like South Park?

The Vita has such a lackluster library of games, I agree, yet its getting sequels to games the Vita and Switch have in common that the developers have opted to not bring to the Switch. That has to be a hard pill to swallow that in 2018 there's even one developer that brought a game to both Vita and Switch last year that decided to go ahead with the Vita port instead of a Switch port for its next game in the series.

There's rumors that yet another Bethesda game might come to Switch? Hold the fucking phone, Batman! That's unbelievable! Well that just changes everything!

It's amazing how low you're willing to set the bar.

Third party support for Wii U increased from its first year to its second year as well. Same goes for Vita. Did third party games sell well on Wii U and Vita?

My standards are fine, you're just making things up, Wii U & Vita support was best in the first 12- 18 months and got worse after that.

At this point Wii U was just getting kid/family titles and ok indie support while Vita had carved out a niche for indies and small-medium Japanese titles.

I'm making things up? On what grounds?

"kid/family titles and ok indie support" that results in more third party game sales over the previous year is still an increase in third party support.
"indies and small-medium japanese titles" that results in more third party game sales over the previous year is still an increase in third party support.

Let's not forget that the world's biggest publisher, Activision/Blizzard has put out a total of two Switch games. EA, the second biggest publisher, will have put out its third Switch game when FIFA 19 comes out. Both of those companies supported the WIi U and Vita better in their first two years. In fact Activision/Blizzard put out 15 Wii U games it first two years, and EA put out six Vita games in its first two years.

You're just shifting the goalposts now so that "increase in third party support" only applies to the kind of games the Switch is getting.

Well it's a good thing you have the internet, and you can easily look these things up! Have fun!

Demographics + userbase are more important than existing support.

Its demographics and userbase. Switch has a demographic that is older and the userbase is growing rapidly as the system is selling as fast as the PS4 did.

EA and Activision will come around so long as Switch has good demographics, good userbase, and the high rate of software sales on the platform. That's more important IMO, you need to build a foundation before you can build the house on top of it.

Wii did not build a good foundation for Nintendo because it was overly focused on casualware/shovel ware and once that trend went kaput, Nintendo couldn't build a future from that. Yeah its great that the Wii U did have some solid 3rd party content early on, but the brand was useless once people got tired of the mini-game craze. Switch is building Nintendo a more stable foundation on which they'll be able to build a nice house on. Even with Nintendo centric titles, the Switch is selling a ton of software, Xenoblade X is going to sell 1.5+ million, maybe over 2 million ... if a game like that can do that, there's no reason a Final Fantasy game (for example) can't do well on Switch.

It's not about EA and Activision support today ... that will increase as long as Switch continues to show good demographic + attach ratio + good sales in both the West + Japan.