Nintendo has scored a legal victory against a streamer who livestreamed pirated games before their official release.

Jesse "EveryGameGuru" Keighin has been ordered to pay $17,500 (A$26,740) in damages following a court ruling in the US.

Nintendo filed the lawsuit last November, accusing Keighin of obtaining and streaming unreleased titles, including Mario & Luigi: Brothership, Super Mario Party Jamboree and The Legend of Zelda: Echoes of Wisdom, on more than 50 occasions since 2022.

In addition to livestreaming, the company alleged Keighin shared links to emulators such as Yuzu and Ryujinx and used unlawfully modified consoles to play leaked games.

According to court documents, Keighin sent a defiant letter to Nintendo at the time, claiming he had "a thousand burner channels" to continue streaming and telling the company, "You might run a corporation, but I run the streets." He reportedly did not appear in court to defend himself.

Nintendo argued Keighin's actions amounted to "trafficking" in illegal "circumvention devices" and caused "millions of dollars" in lost sales.

The court granted an injunction against Keighin, preventing him from infringing Nintendo's copyrighted works or distributing software designed to bypass the Switch's security measures.

However, the court rejected Nintendo's request for an injunction against anonymous third parties and declined to order the destruction of devices used to circumvent security, calling the request "unclear" and "unreasonable."

This case follows another recent lawsuit filed by Nintendo of America (NOA) against Reddit user James C. Williams, also known as 'Archbox,' who allegedly pirated and promoted Switch games online. NOA is seeking US$4.5 million (A$6.88 million) in damages.