I loved it, I might make an OC based on Knock Knock
What I liked about it is how it progresses, despite only few conversations here and there.
I also liked the subtle details you added to the game, like how knock knock moves around the room when your not doing anything for a period of time.
But the thing's I desired most for the game, and what it lacked from, Is that their isn't much left to do outside the cell, and how there's little to explore. I wish there was more endings, besides you dying and changing your name. It's a bit repetitive but It's still enjoyable for a short fun game.