Some resources and links will go here soon enough. But for now, why not check out the first two chapters of my upcoming book: Worldbuilding For Fantasy Fans And Authors.
(These are my favorite books from writing Worldbuilding For Fantasy Fans And Authors. All links are for US Amazon, and I threw in some affiliate links, so don't click 'em if you're philosophically opposed to that sort of thing.)
On Writing and Worldbuilding: From the creator of the Hello Future Me YouTube series, this books has some real actionable writing advise for fantasy worldbuilders.
Building Imaginary Worlds: The Theory and History of Subcreation: This is the mother load when it comes to worldbuilding theory, but it's also a textbook, really expensive, and not always easy to read. This is for the really, really serious worldbuilders.
World Builder's Guidebook: An old AD&D sourcebook, but an invaluable resource full of loads of random generating tables for when you need some inspiration. Only available as PDFs these days.
The Art of World Building Series: By Randy Ellefson, who also has a podcast, this six-book collection breaks down into books on life, places, cultures, and has a pretty useful book on worldbuilding tips.
Guns, Germs, and Steel: Not a whiff of fantasy in the whole 400+ pages, but a fascinating read that gives some great insight into how cultures form and are influenced by their environments.
How to Invent Everything: A Survival Guide for the Stranded Time Traveler: Ryan North somehow finds a way to make technology entertaining as he breaks down all its underpinnings. Be warned that it's pretty all over the place, although I did learn that all earthworms in the Americas died due to the ice age, so that was pretty cool.
A Magical Society: Guide to Mapping: A free thirty-seven-page introduction into designing a world starting with plate tectonics and global weather patterns all the way to the migration of species. It sounds intimidating, but it’s very easy to understand and use.
Save the Cat!: Not actually worldbuilding related, but one of the more useful books on writing I've ever encountered. I know there's one for writing novels now, but I've never read it, so I can only endorse the original screenwriting version.
/r/worldbuilding: This is the premier online worldbuilding group, and where I got my start. Loads of helpful people and little judgement. You might even see me around there (/u/matticusprimal).
Fantasy Maps and Worldbuilding Facebook Group: Another great spot to find others to trade notes about maps and worldbuilding. An active community with no judgement that’s accepting of anyone no matter their worldbuilding experience.
Writing Excuses: This long running podcast by heavy-hitters Brandon Sanderson, Dan Wells, Mary Robinette Kowal, and Howard Taylor is a must have for all speculative authors. And the fourteenth season is dedicated entirely to worldbuilding.
Worldbuilding For Masochists: I've just discovered this one and haven't made my way all the way through it yet, but it's amazing. Some great fantasy authors at the top of their worldbuilding game as they design a collective world and walk you through their process.
The Art of Worldbuilding: Randy Ellefson's podcast to accompany his book series, he breaks down a new subject each session and writes his own music.
Mythcreants: A long-running series discecting the fantasy genre, with a lot of worldbuilding advice.
World Anvil: This is the podcast from the creators of World Anvil. It updates regularly and has some pretty famous guests.
Worldcasting Podcast: Created by Worldbuilding Magazine, this podcast updates weekly and has a rotating cast.
Jemisin's Wired Presentation: Nebula and Hugo winner N. K. Jemisin has been giving worldbuilding workshops for years now and recently recorded this presentation for Wired. Nearly two hours dedicated to worldbuilding by someone at the top of the field.
Brandon Sanderson’s Online Writing Courses: No one has contributed more to understanding fantasy magic systems than Sanderson, who has made all his 2020 creative writing classes at BYU available online for free.
Hello Future Me: An exceptional YouTube channel dedicated to worldbuilding and writing. Each episode provides a deep dive into a worldbuilding or writing aspect yet is still always entertaining.
Anthropology in Worldbuilding (Hong Kong Book Fair interview with Steven Erikson): Malazaaaaan! A great interview with the creator of what many people believe to be the best series. A former anthropologist, Erikson has some great insight into fantasy worldbuilding, although they do spend a lot of time discussing his sci fi book.
Douglasparker.org: Douglas Parker taught worldbuilding at the University of Texas for 30 years, and his site is chock-full of invaluable information. The entire course outline is available for free, and his collection of resources puts any others to shame in terms of scope. Alas, it's a MASSIVE, 800-page PDF, but is worth checking out if you're ready for a deep, deep dive.
Mithril and Mages: An awesome random generator, but one geared more for names. It is also not stuck in the vaguely medieval Europe time period and can draw from modern surnames to natural terrains. Worth checking out.
Mythcreants: A long-running website dedicated to writing speculative fiction with a particular focus on worldbuilding.
Chaotic Shiny: If you’re ever at a loss for worldbuilding ideas, this collection of generators is for you. Everything from magic systems to constellations.
Worldbuilding Magazine: A worldlbuilding community-based magazine that's free and updates regularly? You should sign up.
Landform Worldbuilding Cheatsheet: As the name denotes, there's 130 quick rules for landforms grouped upon terrain types.
Planet Generator: Go big or go home. This one makes a planet complete with climate.
A Book of Creatures: Not so much a book but a blog collecting strange mythical beasts from around the world. Alas, it's in wordpress and not great for searching, but it's got a lot of info and updates regularly.
Medieval Bestiary: An alphabetized list of medieval monsters and their details.
Everyculture.com: As the site name suggests, a compilation of cultures and countries from around the world. A great starting point for cultural overviews as well as inspiration on finding a unique analogue culture.
Donjon Medieval Demographic Generator: It’s actually a world creator geared for RPGs, but I find this to be the most useful feature since it tells you exactly how many and what kinds of trades a community can support just from plugging in a population. There are loads of other features that are worth checking out, too.
Vulgar: If you ever need to make a conlang, this is the spot. it's level of customization is INSANE. It has a free option for generating 200 words, and the pay version is pretty cheap.