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| title: D&D Monster Builder - Free Online Tool | |
| emoji: 🐲 | |
| colorFrom: red | |
| colorTo: yellow | |
| sdk: gradio | |
| sdk_version: 6.20.0 | |
| app_file: app.py | |
| pinned: false | |
| license: other | |
| short_description: Build complete custom D&D 5e monsters with stats and tactics | |
| # Free D&D Monster Builder | |
| This Space is a free **DnD monster builder** for Dungeons & Dragons 5e and the 2024 | |
| (5.5e) rules. Give it a one-line concept — or nothing at all — and it builds a | |
| complete, playable custom monster: identity, lore, a full stat block, named traits | |
| and actions, tactics for running it, and the loot the party finds afterward. | |
| ## What it builds | |
| Every build returns a classic stat-block layout as structured, editable Markdown: | |
| - **Name and identity line** — size, creature type, and alignment in the official | |
| stat-block format | |
| - **Lore** — one to two paragraphs of description and ecology to narrate before | |
| initiative is rolled | |
| - **Armor Class, Hit Points (with dice formula), and Speed** | |
| - **Ability scores** with modifiers precomputed | |
| - **Saves, skills, and defenses** — resistances, immunities, and vulnerabilities | |
| spelled out | |
| - **Senses and languages**, including passive Perception | |
| - **Challenge line** — CR, XP value, and proficiency bonus for encounter budgeting | |
| - **1-4 named traits and 2-5 actions** written in rules language, with attack | |
| bonuses and save DCs that follow from the stat block | |
| - **Tactics** — the section most generators skip: how the monster opens, who it | |
| targets, what it does when bloodied, and when it flees | |
| - **Loot** — what the party finds on the corpse or in the lair | |
| Output comes with one-click copy and a `.md` download, so it drops straight into | |
| Obsidian, Notion, your VTT, or printed prep notes. | |
| ## Inputs | |
| Monster concept, challenge rating target (1/8 through 20), size (Tiny to | |
| Gargantuan), creature type (Aberration through Undead), combat role (Brute, | |
| Skirmisher, Artillery, Controller, Lurker, Leader, or Minion swarm), environment, | |
| and free-form extra notes. **Every field is optional** — blanks become creative | |
| freedom, and the Surprise Me button rolls a buildable combination for you. | |
| ## Example | |
| > **Drownlight Scuttler** — a Large monstrosity (CR 3, 700 XP): a rowboat-sized | |
| > crab grown around a ship's brass lantern that burns with the last memories of | |
| > drowned sailors. AC 14, 58 hit points, +5 claws that grapple, an incapacitating | |
| > memory-aura, and a recharge action that drinks a cherished memory for psychic | |
| > damage. Its tactics: pose as a distant navigation light, let prey wade close, | |
| > and drag whoever fails their save toward deep water. | |
| The full stat block — with all traits, actions, tactics, and loot — is on the page | |
| below the builder. | |
| ## How challenge rating is handled | |
| When you set a CR target, the builder designs inside that CR's expected band for | |
| armor class, hit points, attack bonus, save DCs, and damage, following the Dungeon | |
| Master's Guide monster-building guidance and the shape of published monsters. It | |
| also keeps the numbers internally consistent: hit-point dice average to the stated | |
| total, attack bonuses and DCs derive from the ability scores and proficiency bonus, | |
| and XP matches the CR. The output is tuned to your target CR — sanity-check it at | |
| the table, cross-reference the DMG's statistics-by-CR table for anything that | |
| anchors a whole session, and adjust after the first round of play like any monster | |
| designer would. | |
| ## AI output and fan-content disclaimer | |
| Monsters are AI-generated drafts. Review the numbers, edit freely, and adapt | |
| anything that doesn't fit your table or edition. This is an unofficial fan tool: | |
| Dungeons & Dragons and D&D are trademarks of Wizards of the Coast LLC, and this | |
| project is not affiliated with, endorsed, or sponsored by Wizards of the Coast. | |
| ## Built by Loreify | |
| This builder is built and maintained by [Loreify](https://loreify.ai), the AI | |
| session scribe for D&D groups: record or upload your session audio and Loreify | |
| turns it into organized notes — NPCs, quests, loot, locations, and lore — | |
| automatically. Build the monster here; | |
| [Loreify](https://loreify.ai/start-trial?utm_source=huggingface&utm_medium=referral&utm_campaign=dnd_monster_builder&utm_content=readme) | |
| remembers what happens when it reaches the table. 7-day free trial. | |