Fantasy (and SF I guess) featuring trains as a central theme or world-building piece

I'm surprised fantasy featuring trains heavily isn't more of a thing, the ones I've read that are train-centric are great and I think it's something that lends well to being in a fantasy setting. Some I've read so far below, but I'm on the hunt for more!

• Railsea - China Mieville

• Iron Council - China Mieville

• The Black Locomotive - Rian Hughes

• Raising Steam - Terry Pratchett

• The Wasteland - Stephen King

• Whispers Underground - Ben Aaronovitch

• (Mistborn era 2, but the trains aren't really central in the story, they're just there)

Recs appreciated! Fantasy preferred over Scifi