Confess your biggest backlog crime! the most highly acclaimed/recommended game in your collection you have yet to play?

First off, I just took this question from a fellow on r/retrogaming not because I want to steal their notoriety, but because I think it’s a really great question and I want to ask it here.

Please don’t downvote, just give any awards to u/ErBoPoxy as the (as far as I know) originator of the question (and I had a chat with them to ask if I could cross-post and they agreed).

I just thought it’s such a great question, I wanted to hear some responses.

For me, geez, I have a few:

RDR2 Outer Wilds Mass Effect Trilogy GTA5 Death Stranding