Idea generator

18 AI Worldbuilding Prompts

These prompts create a starting constraint, question, or situation. Use one as written, combine two, or change the audience, setting, objective, or limitation to make a new exercise.

Choose a random prompt from the bank.
Prompt 1

Given a city where private vehicles are banned but goods still move overnight, propose four logistics systems and show one social consequence of each.

Prompt 2

Stress-test a magic system where every spell permanently changes the caster’s sense of time.

Prompt 3

Generate three inheritance systems for a society organized around temporary households rather than permanent family homes.

Prompt 4

Given a moon colony with eighteen-minute communication delay, map consequences for emergency authority, contracts, journalism, and family life.

Prompt 5

Create four plausible political tensions caused by a river that changes course predictably every twelve years.

Prompt 6

List second-order effects of a technology that makes spoken lies detectable but says nothing about omission or mistaken belief.

Prompt 7

Given a fictional religion centered on repair rather than purity, propose institutions and daily practices that follow logically from that belief.

Prompt 8

Stress-test a fantasy economy where teleportation works only for objects that have never been owned.

Prompt 9

Create three education systems for a society where adults routinely live to 180 but childhood length remains unchanged.

Prompt 10

Given a city built inside a migrating structure, identify consequences for property, maps, citizenship, and burial customs.

Prompt 11

Develop four conflict-generating rules for a world where memories can be inherited but only one generation backward.

Prompt 12

Map household, workplace, legal, and political consequences of healing magic that cannot distinguish injury from deliberate bodily modification.

Prompt 13

Generate questions an author should research before adapting real maritime trade patterns into a fictional archipelago.

Prompt 14

Check this proposed world rule for contradictions with the supplied canon and classify each issue as direct conflict, timeline problem, scale problem, or unanswered assumption.

Prompt 15

Suggest four ways climate could shape clothing, architecture, work schedules, and social status in the same fictional region without making culture a simple product of weather.

Prompt 16

Given a bilingual empire, propose language policies that would create different incentives for courts, schools, merchants, and border communities.

Prompt 17

Stress-test a society where public office is selected by lottery but candidates can refuse only once in their lifetime.

Prompt 18

Generate five everyday inconveniences produced by a world’s central technology; avoid warfare and focus on ordinary households, work, travel, and bureaucracy.