Defining "Soulslike" — What is the Berlin Interpretation?

There isn't an "official"/widely accepted definition of what a Soulslike even is. The Armored Core 6 controversy over if it's a Soulslike is proof of this. There are plenty of opinion pieces floating around on the web though, and they always seem to devolve into drama. I'm nothing if not dramatic, so I put together my own definition of Soulslike.