Sure have! Played it on Playstation and the trophies are absolutely brutal. Managed to get the speedrun with a few seconds to spare, but couldn't get the iron mode ones. Great game.
I really enjoyed Death's door, so I took a look at Titan Souls, and it seemed quite different in style and how it played. I wasn't sure they were similar enough experiences for one to inform me of the other, but if its good, I might give it a go then. Thank you.