LAN Multiplaer Again

Hi everybody. I have read many articles about this topic but have not found anything useful. So I will ask this question again.

is it possible to make LAN multiplayer. I want to have Multiplayer without any Internet connection. Even without connection to signalling server. I can make a game example: Soul Knight. Please responce

My game is here:https://jekuper.itch.io/the-poligon

If you purchase the server on the store, you should be able to utilize LAN with it after configuring things.

only chance is using signalingserver.js from scirra and use it on a LAN PC.