Mario And Luigi Brothership -01006d0017f7a800--...

The homebrew community often creates custom title IDs for fan games or mods. A fan-made Mario & Luigi RPG with the subtitle “Brothership” could theoretically use this ID in a custom NSP (Nintendo Submission Package) file meant for emulators like Ryujinx or Yuzu.

So 01006D0017F7A800 an official Switch game ID structure. But does Nintendo have a game with that exact ID? As of now, no . The ID range for known Mario titles is well documented by the homebrew community (e.g., Super Mario Odyssey is 0100000000010000 , Mario & Luigi: Superstar Saga + Bowser’s Minions (3DS) has a different format). The ID you provided does not match any publicly released Switch game. Mario and Luigi Brothership -01006D0017F7A800--...

When you install a game on a hacked Switch (via Atmosphere, SX OS, etc.), the console stores your save data in folders named after the title ID. For example: /switch/01006D0017F7A800/ would be the folder for saves, mods, or cheat files. The homebrew community often creates custom title IDs

It’s a fake or corrupted file name. Don’t download it. Don’t share it. And no, your friend’s cousin didn’t play it on a dev kit. But does Nintendo have a game with that exact ID

This article dives deep into the significance of this specific keyword, exploring what it tells us about Mario & Luigi: Brothership , the technical architecture of the Switch, and why the "Title ID" is the unsung hero of game preservation.