-INSTALLATION WITHOUT MOD LAUNCHER (recommended)

1) Patch the game trough deltapatcher
2) Drag the lang folder in your deltarune chapter 1 folder and patch the data.win with deltapatcher
3) Enjoy the mod!

-INSTALLATION WITH G3M

1) go to your library and click on add mod
2) select import mod and select the zip file that you downloaded 
3) launch the game and enjoy the mod!