Fantasy prompts are easy to collect and weirdly easy to misuse.

I say that because fantasy is one of those genres where a single idea can immediately start getting bigger than you planned. You pick a prompt about a cursed forest, and five minutes later you’re trying to figure out the history of the kingdom, the rules of the magic system, the political structure of the elves, whether dragons exist, and why nobody in this world has apparently invented plumbing yet.

Before long, the prompt has somehow turned into a worldbuilding project, a series bible, and a quiet reminder that you still haven’t written the opening scene.

A good prompt shouldn’t feel like a full assignment. It’s not there to hand you the plot, the characters, the setting, and the ending all at once. It’s there to give you something to react to, whether that’s a character, a strange worldbuilding detail, or one scene that feels interesting enough to write even if you have no idea what comes before or after it.

So as you go through these fantasy writing prompts, I wouldn’t worry too much about finding the “perfect” one. Look for the idea that makes you want to ask another question. Who is this about? What went wrong? Why does this matter now? What would make this worse for the character?

That’s where prompts become useful, especially in fantasy. They give you a doorway into the story, but you still get to decide what’s on the other side.

Below, I’ve grouped the prompts by type, including epic fantasy, portal fantasy, urban fantasy, supernatural ideas, character prompts, setting prompts, worldbuilding prompts, and fantasy romance. Use one as written, combine a few, or pull out one small piece and build from there.

What most fantasy stories have in common

Before we get into the writing prompts, it helps to have a rough idea of what fantasy stories tend to include. Not in a strict, rule-based way, but just the patterns you’ll see over and over again once you start paying attention.

Most fantasy stories include some form of magic, and in a lot of cases there’s at least some kind of system behind it, even if the reader only sees part of it. They also tend to take place in a world that’s clearly not our own, with different rules, histories, and structures, but still consistent enough that it feels believable once you’re in it.

On top of that, there’s usually some kind of high-stakes conflict driving everything forward, along with a level of world-building that goes deeper than just the surface details.

But the magic and the setting aren’t really what make a story work on their own. The books people actually remember still get the fundamentals right, just like any other genre. You’ve got characters who feel real, a clear theme running underneath the story, something the reader can connect to, dialogue that serves a purpose, and pacing that keeps things moving toward an ending that feels earned.

At the same time, there are certain ideas and setups that show up again and again in fantasy. Not because you have to use them, but because they give you something solid to build around and readers recognize them right away.

You’ll see things like a chosen one, a powerful villain behind everything, good versus evil, some kind of magic system, a mentor figure, familiar fantasy races, older or medieval-style settings, magical weapons or artifacts, taverns or inns as meeting places, dragons, quests, magical schools, portals to other worlds, old myths that turn out to be true, or even a hidden magical world inside the real one.

You don’t need all of that, and most stories only use a handful of those elements.

A lot depends on the kind of fantasy you’re writing, since something like urban fantasy leans on very different conventions than epic fantasy. But if you want a better sense of what shows up most often, it helps to look at what’s already working.

Spend a little time browsing Amazon categories, click into a few books, and you’ll start to see the patterns pretty quickly.

So, with that groundwork laid, let’s get into the prompts.

Fantasy writing prompts by type

I grouped these as best I could so you’re not just staring at one long list. There’s still some overlap, but this should make it easier to find something close to what you’re in the mood for.

What to do with a prompt once you pick one

A lot of writers treat prompts like instructions, so they try to build an entire story around the exact idea they picked. And that’s usually where things stall out, because the prompt was never meant to carry all that weight on its own.

It’s better to treat it as a starting point and nothing more. Something to react to. Something to push on a little until it turns into something that actually feels like yours. That can mean changing the perspective, shifting the setting, or pulling one small piece out of the idea and building around that instead.

Sometimes it just means asking a few basic questions and seeing where they lead. Who is this really about? What’s the problem? Why does it matter right now instead of later?

You can also combine prompts if one on its own feels a little thin. That tends to work better than trying to force a single idea into something bigger than it wants to be. And in a lot of cases, the best thing you can do is start smaller than you think. Don’t worry about the full plot or the entire world right away. Just write a scene. See how the character reacts. Let the situation play out a bit and figure out what’s interesting once you’re already in it.

Some ideas won’t go anywhere. That’s part of the process. But every once in a while, one of them will open up more than you expected, and that’s usually the one worth sticking with.

Before you turn a prompt into a book

The best prompt on this list is not necessarily the strangest one, or the biggest one, or the one that feels like it could support a twelve-book saga and several companion maps.

It’s probably the one that makes you want to write a scene.

That’s usually the better test. If an idea gives you a character you want to follow, a problem you want to make worse, or a world detail you keep turning over in your head, there may be something there. You don’t need the whole plot right away. You just need enough interest to start pushing on it and see what shows up.

But if the idea starts growing into something bigger, especially something you might publish, it’s worth taking a little time to see where it fits in the market.

Fantasy has a lot of room, but it’s also crowded. Epic fantasy, urban fantasy, portal fantasy, supernatural fantasy, fantasy romance… each one has its own reader expectations, cover styles, keywords, and categories. So before you spend months building a world around one idea, it helps to know what readers are already looking for and how books like yours are being positioned.

That’s where Publisher Rocket can be useful.

You can use it to look at Amazon search data, compare keywords, check categories, and get a better sense of whether your idea fits into an existing pocket of demand. You’re not using the data to flatten your story into whatever is trending. You’re using it to understand the shelf your book might eventually sit on.

So pick the prompt that bothers you in the right way. Write the scene. Ask a few more questions. Then, if it starts looking like a real book, do the boring-but-useful market research before you go too far down the road.