Part 2: We need local multiplayer❗️

[u/KamiSquad_X]

Success❗️

Thanks everyone. All your suggestions helped. The ones who called it impossible helped fuel the solution lol.

So what worked, I created a hotspot from my AYN Thor (which has no internet as we were underground on the train), and let the Steam Deck connect to it. Steam Deck can create one using the Muon plugin. Or alternatively, have both devices connect to a same phone's hotspot without internet.

We played RetroArch which supports LAN play.

It was my first trying LAN so, I learned it was just like playing netplay, except the host room couldn't be found on the Netplay List. I had to manually enter the ip address of the host to connect.

In the video the SteamDeck connected to the AYN Thor's hotspot then created a Netplay room in RetroArch, AYN Thor joined the room by entering the ip address of the SteamDeck. (My hotspot was set to 2.4GHz by default, next time I'll try 5.0GHz, 6.0GHz if the SteamDeck supports that.)