As should be apparent by now, RDR2’s use of literature ranges from deep and extensive to brief and glancing. Sometimes, the writers allude to a work broadly rather than dealing with its themes.
The relationship between RDR2 and the Bible is an odd one. The game seems thoroughly secular on the surface, but its ideas about sin and redemption are not unchristian — perhaps because it relies so much on Paradise Lost to shape it. But the use of that text doesn't entirely account for the use of Biblical material in the game, which indicates a broad familiarity with that body of work.
More allusions to Emily Brontë's Wuthering Heights in Red Dead Redemption 2, including themes, character and mission names, and more.
The remaining allusions to King Arthur in RDR2 that didn’t fit into essays elsewhere: what's up with Kieran's beheading, why Arthur sees a deer in his honor visions, Pleasance, and much more.
I've discussed Paradise Lost in some depth now, but there are still quite a few allusions that didn't fit elsewhere. This also seems like the best place to discuss the other allusions to the Romantics in the game. Here's a roundup of the essays, followed by a list of the other references the game makes.
