Monster generator

A 5E monster generator with code-checked CR

Ask for a creature at the challenge rating you need and get an original stat block. Its CR is estimated in code from the creature's defenses and damage, so you can see how close it lands to what you asked for.

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Example output

One stat block, with the CR the code estimates for it.

Mirefang StalkerCR 2450 XP
Medium monstrosity, unaligned
AC 13 · HP 45 (7d8+14) · Speed walk 30ft, swim 30ft
STR 14 DEX 15 CON 14 INT 3 WIS 13 CHA 6
Skills Stealth 6, Perception 3
Senses darkvision 60 ft., passive Perception 13

Hold Breath. The stalker can hold its breath for 30 minutes.

Mire Camouflage. The stalker has advantage on Dexterity (Stealth) checks made to hide in swamps or murky water.

Actions

Bite. +4 to hit, reach 5 ft., 2d6+2 piercing damage. If the target is Medium or smaller, it has the Grappled condition (escape DC 12).

Tail Lash. +4 to hit, reach 10 ft., 1d8+2 bludgeoning damage.

Results vary with every prompt. Each one is a starting point you can regenerate.

What you get

Made for the table

CR estimated in code

Hit points, armor class, attack bonus and damage per round set the estimate, which is shown beside the CR you asked for.

Save it, or use it tonight

Keep a result in your personal library, or save it into a campaign you host so it is ready at the table.

A starting point, not a final draft

Results vary with every prompt. Each one is a starting point you can regenerate until it fits your table.

Art when you want it

On plans that include image generation, you can add art to a saved result. Generating text does not spend an image.

How it works

Three steps to your first result

  1. Create your free account

    Sign up in a minute. No card required.

  2. Describe what you need

    Give a short concept, or pick from the premade options, and generate.

  3. Save it

    Keep it in your library or save it into a campaign you host.

Questions

Before you generate

Is it free?

Every account starts on the Free plan, which includes 3 generations a day across all six generators. Paid plans raise the allowance; see the pricing page for the current numbers.

Can the AI Dungeon Master run my monster?

Yes. Save it into a campaign and it becomes part of that campaign's homebrew, run with the stat block you saved.

Is the content 5E compatible?

Yes. Results use SRD 5.2 rules terms and are written to be 5E compatible.

Why do I need an account to generate?

Each generation is a model call with a daily allowance and content checks attached to an account, so the generators run once you sign in. The example on this page is fixed and needs no account.

More generators

Make the rest of your session

Build the encounter your table deserves.

Create a free account and generate a creature at the CR you need.

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