Luigi-mansion-3-nsp-update-1---40-1--41-.4.0-mu... Fix Jun 2026

In your emulator, right-click Luigi's Mansion 3 , select "Manage Title Updates", and navigate to your downloaded 1.4.0 NSP file.

If you have specific issues with installation, I can help you: installation errors Find more info on DLC integration Optimize game performance in emulators

Even players who don't purchase the Multiplayer Pack benefit from the 1.4.0 update: Luigi-Mansion-3-NSP-Update-1---40-1--41-.4.0-Mu...

Version 1.4.0 addressed several "soft-lock" issues that could prevent players from completing the game:

Beyond the single‑player campaign, two major multiplayer modes extend the experience: In your emulator, right-click Luigi's Mansion 3 ,

Luigi's Mansion 3 update out now (version 1.4.0), patch notes

Luigi's Mansion 3 update out now (version 1.4.0), patch notes In your emulator

– Running NSP updates generally requires custom firmware (Atmosphere, SX OS, etc.) and a means to install unsigned code. Many users have reported that version 1.4.0 runs stably on firmware 9.2.0 or higher, though newer firmware versions may require updated signature patches.