Random Dungeon Generator

Looking for a full map? Try the Dungeon Map Generator

Randomly generate parts of a dungeon on the fly, pieces are modular and fit together so you can even generate an entire dungeon this way. If you're generating from scratch, begin with a starting area and then add random doors and passages. Passages can connect to other passages, and should continue to be generated until they're all linked to doors, rooms, or dead-ends. Refresh to generate new things. You can also drag and drop pieces onto the grid map to build as you go.

Jump to a section:

• Dungeon Start
• Passages
• Doors
• Chamber (Rooms)
• Stairs
• Contents
• Monster
• Random Hazards
• Random Obstacles
• Random Traps
• Random Tricks

Dungeon Start

Dungeon Type: Lair (Click to make random). or choose: Death TrapLairLairLairLairMazeMineMineMinePlanar gateStrongholdStrongholdStrongholdStrongholdTemple or shrineTemple or shrineTemple or shrineTombTombTreasure vault

Starting Area: Square, 40 x 40 ft.; doors on three walls
Description

Noises: Rustling
Air: Clear and drafty
Odors: Manure

Purpose: Pen or prison where captives are held
Current state: Stripped bare
Contents: Monster (pet or allied creature)

Possible feature: Rags; Ashes; Helmet, badly dented
Possible furnishings: Sideboard; Throne; Crate
(Religious) Possible furnishings: Altar; Columns or pillars, Brazier
(Mage) Possible furnishings: Lectern; Vestments; Incense burner
Possible personal items: Mirror; Tray; Pipe, smoking

Passages

Passage Width: 10 ft. / Leads to: Continue straight 20ft., then the passage turns left and continues 10 ft.

Extra passages (if necessary):

Doors

Door: Wooden / Leads to: Passage 20 ft. straight ahead

Extra doors (if necessary):
Door 2: Wooden / Leads to: Chamber
Door 3: Stone, barred or locked / Leads to: Chamber
Door 4: Wooden / Leads to: Diagonal (or turn) Passage 20 ft. to the left
Door 5: Secret door / Leads to: Passage 20 ft. straight ahead
Door 6: Iron / Leads to: Chamber

Chamber (Rooms)

Whenever a passage, door, or anything else results in a chamber, use one of these.

Dimensions: Rectangle, 20 x 30 ft.
Number of exits: 1
Exit locations: Wall left of entrance /
Exit types: Corridor, 10ft. long /

Description
Purpose: Bedroom, for use by leaders
Current state: Used as a campsite
Contents: Monster (pet or allied creature)

Possible feature: Cobwebs; Water, large puddle; Guano
Possible furnishings: Screen; Desk; Tub
(Religious) Possible furnishings: Altar; Lamp, Holy or unholy symbol
(Mage) Possible furnishings: Paintings or frescoes; Incense burner; Offertory container
Possible personal items: Statuette or figurine; Case; Tinderbox (with flint and steel)

Stairs

Stairs connect multiple floors of a dungeon. If your dungeon doesn't have multiple floors, then reroll the passage or door that spawned them.

Stair Type: Down two levels to a chamber

Contents

Whenever a container or book is generated, use this to determine its contents

Container Contents: Liquid, viscous
Book, Scroll, or Tome: Legal code

Monster

Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).

Motivation: Seek an item in the dungeon
Personality: Braggart; makes a show of bravery but runs from danger.

Random Hazards

Hazard: Green slime (Drops from above. DC 10 Dex, 1d10 acid damage, damage each round until removed. Nonmagical wood, metal weapon or tool used to remove is destroyed. Destroyed by sunlight, cure disease, cold, fire, or radiant)

Random Obstacles

Obstacles block or hamper progress and can affect more than one room.

Obstacle: Flooding leaves 2d10 ft. of water in the area; create nearby upward-sloping passages, raised floors, or rising stairs to contain the water

Random Traps

Trap Generator

Trigger: Moved through (doorway, hallway)
Severity: Dangerous (DC 12, +8 to-hit)
Effect: Pendulum, either bladed or weighted as a maul, swings across the room or hall

Random Tricks

Tricks are quirky and less deadly than a trap. Some tricks are permanent, others can be dispelled with Dispel Magic.

Object: Runes engraved on wall or floor
Effect: Helps or harms certain types of creatures

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