Parsec is probably what you need. Me and my brother played through BG1 (for ps2 I believe) with an emulator and parsec. For the most part there was no lag. We simulated us both playing on his computer the same way you would play couch co-op, just in different areas.

I think it’s a thing

Rick and Morty in Skyrim. The elder morty would probably be the name.

Power to turn things into gold by touch.