Worldbuilder’s Library

Our research. Your world.


Worldbuilding is fun. But unless you want to spend a decade rewriting your setting, it best to use well-researched materials from day one.

Worldbuilder’s Library is a collection of articles, books, zines, and decks written and illustrated specifically to help fellow worldbuilders create their universes.

Created by the team of writers, worldbuilders, and designers at Double Proficiency, the Library aims to cover all ground between the natural world, magic, folklore, technology, warfare, and best adventuring practices. Whether you’re in need of magical plants, engaging encounters, or are just fighting a writer’s block, the Library has something for you.

Let yourself get inspired.


Pick a topic

close up of globe

World

boat on calm lake reflecting limestone mountains at sunset

Nature

old building facade with ornament under light sky in city

Culture

man sitting under a tree reading a book during night time

Magic


Latest Posts

Calendula: magic, medicine, and folklore

A popular garden plant, grown for its beautiful golden and orange flowers. Often used to cure skin irritations, strengthen psychic powers, and see through illusions. Calendula officinalis. Also known as: Marigold. Pot Marigold. Ruddles. Summer’s Bride. Family: Asteraceae | astersHabitat: warm and temperate, widely cultivated in gardensSize: 30—60 cmLife cycle: perennial or annualForaging: flowers and… Read More

13 Spookiest Plants For Your Halloween Game

by Anna Urbanek Get ready for the spooky! Today we will be talking about the spookiest plants you can put in your Halloween game. We’re not here to discuss the most toxic plants, because let’s be honest – death by poison is a rather boring thing to play out at the table. Instead, we’re about… Read More

An arctic aurora borealis over the snowy mountains

Arctic Adventures: DM Tips for the Frozen Wilds

If you, like many people in tabletop roleplaying circle, are waiting for the newest expansion for Dungeons & Dragons to land, you already know you’ll be probably spending some months around Icewind Dale. Arctic adventures are on multiple schedules this year, and there’s nothing surprising about it. After all, Rime of the Frostmaiden promises the… Read More

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