here are the files for this mod, It is a WIP so dont expect too much ok...
download link is above....
updated instruction file is here:
i made a multiplayer mod that allows you to play with your friends in one hn game
Please support me by downloading it
you will have to set the folders in the zip file in C:\Program Files\EpicGames\HelloDevKit\HelloNeighbor\Content (path can be different if you set)