Definition of "first-party" [first-party]

Of or relating to someone directly involved in a given transaction, such as a buyer or seller. (adjective)
Of or relating to the plaintiff in a lawsuit. (adjective)
Of a video game, developed and published by company responsible for the platform on which it is released (or its internal developers), as opposed to third-party. (adjective)
Originating from such a video game. (adjective)

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Use "first-party" in a sentence

"Worldwide Studios North America head Scott Rohde talked to me about the company's internal developers and why first-party strength is important to the platform."
"Announcements of first-party exclusives are always cool, but again, you're even less likely to be able to tell if it's a real value add based on just an announcement and teaser."
"The primary complaint against Wii was that only first-party titles were successful on the platform; I'd argue that EA's been the company to prove in the biggest way that this isn't necessarily the case."