Building a fantasy economy that actually holds together

Every long-running fantasy campaign or novel eventually hits the same wall: someone asks how much a room at the inn costs, or what a sword is worth compared to a horse, and the honest answer is "whatever felt right when I wrote it down." Prices invented one at a time, scene by scene, drift. A loaf of bread ends up costing a noticeable fraction of a suit of armor. A "cheap" item and an "expensive" item stop having any consistent relationship to each other, and players who do the mental math start noticing the seams in the world.

The fix isn't to price every item from scratch with more care. It's to anchor the whole price list to one thing everyone understands, and let every other price scale off of it.

Anchor to a meal, not to a feeling

Real-world economists use exactly this trick — the "Big Mac Index" prices currencies against an identical, universally available product instead of comparing abstract exchange rates. A fantasy economy benefits from the same anchor. A basic tavern meal is something every setting has, every player intuitively understands the value of, and every other price can be sanity-checked against: is a night at an inn worth ten meals? Fifty? Once that ratio is fixed, the whole price list inherits consistency for free, because everything is a multiple of the same baseline instead of an independent guess.

In practice, that means picking a baseline cost in your smallest coin denomination — a copper piece, say — for a basic meal, and deriving lodging, tools, weapons, and luxury goods as multiples of that baseline rather than pricing each category in isolation.

The standard three-tier coinage

Most fantasy settings, D&D included, use a three-denomination system: a low-value coin, a mid-value coin, and a high-value coin, related by a fixed exchange rate — typically 1 high-value coin equals 10 mid-value coins equals 100 low-value coins. That 1:10:100 structure isn't arbitrary; it mirrors real historical coinage systems (pounds, shillings, and pence; or dollars, dimes, and cents) closely enough that players reason about it intuitively without needing a conversion chart at the table.

The specific coin names are the easy part to customize — "gold, silver, copper" becomes "crowns, marks, bits" or whatever fits your setting's flavor — without touching the underlying math. Rename the coins, keep the ratio, and the economy still holds together.

Economic tiers: the same coinage, different scarcity

Not every location in a setting should have the same prices. A grimdark frontier where basic goods are scarce should feel meaningfully more expensive than a wealthy trade hub where the same goods are abundant — but re-deriving an entire price list by hand for every location a party visits isn't practical during actual play. The fix is a single multiplier applied uniformly across the baseline price list: a "grimdark / scarcity" tier scales every price up (goods are dear, coin buys less), a "wealthy trade hub" tier scales prices down (goods are abundant, coin buys more), and a "sci-fi / post-scarcity" tier scales furthest down for settings where manufactured goods are cheap relative to labor or rare materials. Standard medieval sits at the unscaled baseline in between.

Because every item's price is still derived from the same meal-anchored baseline, switching tiers doesn't break internal consistency — a sword is still worth roughly the same multiple of a meal in a grimdark town as in a wealthy one, even though the absolute numbers differ. That's the property that makes the system durable across an entire campaign rather than a single one-off price list.

What a generated price sheet actually covers

A useful baseline sheet spans the categories a party or a novel's characters actually spend money on: food (bread, a tavern meal, a pint of ale), lodging (common room vs. a modest inn), tools (from a simple hand tool to a sturdy pack), weapons (from a basic sword up through plate armor at the expensive end), and luxury goods (a riding horse, fine silk). Having all five categories priced against the same anchor is what lets you answer "is this fair?" for an item that was never on the original list — find the closest comparable category and interpolate, rather than inventing a number from scratch.

Try it for your next town

Pricing a fantasy economy by feel works for a single scene. It stops working the moment players start comparing notes across sessions, or a novel's readers notice that a "cheap" meal earlier costs more than a "expensive" sword later. The Fantasy Currency & Economy Balancer anchors a full price sheet — food, lodging, tools, weapons, and luxury goods — to a single baseline meal cost, lets you rename the coinage to match your setting, and rescales the entire sheet consistently across four economic tiers. Pair it with the TTRPG settlement demographics calculator to decide how much gold a given town can actually produce, so the prices you've balanced match what the locals can plausibly afford to pay.