DUNGEON KEEPER

AI Dungeon Master • 5th Edition • Veteran Level

WIS 20 +5 5e Rules
CHA 18 +4 NPC Voices
INT 18 +4 Encounters
DEX 16 +3 ASCII Maps
CON 16 +3 Long Sessions
STR 14 +2 Loot Tables

Backstory

I've run thousands of sessions across forgotten realms, cursed crypts, and planes beyond mortal reckoning. I know the Monster Manual like the back of my character sheet. Tell me your party's composition, their level, and the tone you're after — gritty survival, heroic fantasy, comedic chaos — and I'll build the adventure around you. I'm not a rules lawyer, but I do know the rules. I'm not a replacement for your table, but I'm a damn good prep tool for the DM who wants to walk in ready.

Proficiencies & Skills

Encounter Balancing (CR) NPC Generation Loot & Magic Items ASCII Dungeon Maps Combat Initiative Puzzles & Traps One-Shot Design Scene Description Dice Rolling Random Encounters Spells & Classes Campaign Tone

What Lies Within

Every room in this dungeon holds a different skill. Navigate the map and see what your AI Dungeon Master brings to the table.

⚔️

Encounter Forge

Balanced fights for any party level. I calculate CR, pick monsters that make tactical sense, and set the battlefield.

🎭

NPC Tavern

Characters with names, voices, secrets, and motivations. The barkeep who's secretly a retired assassin. The child who speaks to ravens.

🗺️

Cartographer's Room

ASCII dungeon maps, battle grids, and room layouts you can paste into your notes or VTT chat. Walls, doors, traps marked clearly.

💰

Treasure Vault

Loot tables from mundane to legendary. Magic items with flavor text, cursed objects, and hoard distributions by tier.

🎲

Arena

I'll roll initiative, track HP, handle actions and bonus actions, and narrate each round with dramatic flair. You focus on strategy.

🧩

Puzzle Chamber

Riddles, logic puzzles, environmental challenges, and traps that reward clever thinking over brute force.

📜

One-Shot Scriptorium

Complete adventure outlines with hooks, escalation, a climactic encounter, and resolution — ready for a single session.

Conversations from the Table

Here's what it actually looks like when you chat with Dungeon Keeper. Real prompts, real responses.

⚔️ Encounter Generation
You

My party is 4 level-5 characters (paladin, rogue, wizard, druid). We're in a swamp. Give me a medium-difficulty encounter with some environmental hazards.

Dungeon Keeper

Encounter: The Sunken Shrine

The stench of rot thickens as the mist parts to reveal a half-submerged stone shrine, its pillars wrapped in black vines. Something moves beneath the murky water...

Enemies: 1 × Shambling Mound (CR 5), 3 × Mud Mephits (CR 1/4)
Adjusted XP: 2,400 — Medium for 4 level-5 PCs

Hazards:
• Sucking Mud: Difficult terrain. DC 12 STR save to move or be restrained.
• Toxic Spores: Start of turn within 10ft of shrine: DC 11 CON or 1d6 poison.
• Collapsing Pillar: AC 10, 15 HP. Falls in a 5×15 line: DC 13 DEX, 2d10 bludgeoning.

The Shambling Mound lurks underwater (Stealth +2 vs. passive Perception). Mephits harass from the air. Want me to roll initiative?

🎭 NPC Creation
You

I need a shady information broker NPC for a noir-fantasy city. Someone memorable.

Dungeon Keeper

Miravel "Three-Fingers" Doss
Tiefling, she/her, mid-40s. Runs a "tea house" in the Duskmarket.

Appearance: Missing two fingers on her left hand (won't say why, gives a different story each time). Wears tinted spectacles. Smells faintly of cinnamon and lamp oil.

Voice: Speaks in a low, measured cadence. Ends sentences with questions. "You want the harbormaster's schedule, do you? And what would I want, I wonder?"

Motivation: Hoards secrets the way dragons hoard gold. Genuinely believes information should flow freely — but not cheaply. Has a soft spot for orphans (funds a shelter anonymously).

Secret: She's a retired Zhentarim operative who faked her own death. Her old handler is getting close to finding her.

Want me to write her stat block or build a quest hook around her?

🗺️ ASCII Map
You

Draw me a small dungeon — 5 rooms, with a trapped hallway and a boss room at the end.

Dungeon Keeper 
    ┌─────────┐
    │ 1.ENTRY │
    │  (door)  │
    └────┬────┘
         │
    ┌────┴────┐     ┌─────────┐
    │ 2.GUARD │─────│ 3.ARMORY│
    │  ROOM   │     │  (loot) │
    └────┬────┘     └─────────┘
         │
   ══╤═══╧═══╤══  ← TRAPPED HALL
   ══╧═══════╧══    (pressure plates)
         │
    ┌────┴────┐     ┌──────────┐
    │ 4.SHRINE│─────│ 5. BOSS  │
    │ (puzzle) │     │ (dragon) │
    └─────────┘     └──────────┘

KEY: ═ trap  │─ passage  (door) locked

Room 1 is the entrance with an unlocked door. Room 2 has 2 guards (use Veteran stat block). Room 3 has a locked chest (DC 15) with potions and gold. The trapped hallway has pressure plates (DC 14 Perception to spot, DC 13 DEX save, 3d6 piercing). Room 4 has a riddle that opens the boss door. Room 5... well, that depends on your party level. What are we working with?

💰 Loot Table
You

Roll a loot table for a bandit captain's hideout. Tier 1 party.

Dungeon Keeper

Bandit Captain's Stash — Tier 1 Loot

🪙 Coin: 48 gp, 120 sp, a pouch of 12 mismatched gems (worth 5 gp each)
🗡️ Weapon: A silvered shortsword with the initials "R.V." etched into the pommel
🧪 Potion: Potion of Climbing (tastes like pine sap)
📜 Document: A coded letter referencing a shipment at the docks — possible quest hook
🎲 Curiosity: A set of loaded dice (DC 15 Investigation to notice). Worth 25 gp to the right buyer.

The silvered shortsword is a nice find for a Tier 1 party — handy when they meet their first werewolf. Want me to expand the coded letter into a full side quest?

Tales from the Table

What fellow adventurers had to say after chatting with Dungeon Keeper.

Initiative Order
18
Marcus

"I used it to prep a one-shot for game night. The encounter it built was better balanced than what I usually do manually. My players actually got scared of the Shambling Mound."

15
Jess

"The NPC generator is my favorite part. I asked for a 'creepy but sympathetic villain' and got someone I'm now building an entire arc around. It even gave me dialogue samples."

12
Devon

"The ASCII maps are surprisingly useful. I paste them into our Discord and my players immediately get the room layout. Not beautiful, but functional and fast."

7
Rina

"I'm a new DM and honestly just needed someone to check my encounter math. It caught that I'd accidentally thrown a deadly encounter at my level-3 party and helped me scale it down."

Frequently Asked Questions

Before you descend, here's what you should know.

Both, to a degree. It's strongest as a prep tool — encounters, NPCs, maps, loot, one-shots. But you can also run combat through chat: I'll track initiative, roll dice (simulated random numbers), and narrate results. It's a conversation, not a VTT, so you won't get a visual grid that updates in real time. But for theater-of-the-mind or quick solo play, it works well.

5e is the strongest suit, but it can help with Pathfinder 2e, OSR systems, Dungeon World, and other tabletop RPGs. Just tell it which system you're using and it'll adapt. Rules accuracy is highest for 5e, so for other systems, double-check the specifics against your rulebook.

Yes — you can paste text or upload images directly in the chat. Send your campaign notes, a hand-drawn map, or a screenshot of a stat block, and it'll reference that in its responses. It can't connect to external tools like D&D Beyond or Roll20, but anything you bring into the conversation window is fair game.

Within a single conversation thread, yes — it'll remember your party, the NPCs you've created, and the story so far. If you start a new conversation, you'll want to paste in a brief recap or your key notes. It's an AI chat, not a database, so treat it like a skilled DM you're briefing at the start of each session.

It's trained on extensive 5e knowledge and gets the vast majority of rules right — action economy, spell mechanics, CR calculations, class features. But it's an AI, not a sage with perfect recall. For edge cases or rules lawyer debates, always verify against the official source material. Think of it as a very knowledgeable fellow player, not an infallible oracle.

Roll for Initiative

Your party awaits. Your dungeon needs building. The dice are warm. Sit down at the table and let's make something your players won't forget.

Meet Dungeon Keeper

No gold required to enter. Just type and talk.

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