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: Tomb (Click to make permanent). or choose:
Starting Area: 
Circle, 40ft. diameter; one passage at each cardinal direction
Description
Noises: Splintering
Air: Clear and damp
Odors: Dank or moldy
Purpose: Crypt for less important burials
Current state: Stripped bare
Contents: Dungeon hazard with incidental treasure
Possible feature: Torch stub; Wax blob (candle stub); Sack, torn
Possible furnishings: Wood billets; Chair, plain; Chair, padded, or divan
(Religious) Possible furnishings: Pews; Lamp, Vestments
(Mage) Possible furnishings: Shrine; Holy or unholy symbol; Chimes
Possible personal items: Towel; Whetstone; Oil, fuel
Passages
Passage Width: 
40ft. wide, 20ft. high / Leads to: 
Continue straight 30ft., no doors or side passages
Extra passages (if necessary):
2nd Passage Width:
40ft., with double row of pillars / Leads to: 
Continue straight 20ft., side passage to the left, then an additional lO ft. ahead3rd Passage Width:
10 ft. / Leads to: Continue straight 20ft., side passage to the left, then an additional 10 ft. ahead4th Passage Width:
20 ft. / Leads to: Continue straight 30ft., no doors or side passages
Doors
Door: Wooden, barred or locked / Leads to: 
Passage 20 ft. straight ahead
Extra doors (if necessary):
Door 2: Wooden / Leads to: Passage 20 ft. straight ahead
Door 3: Wooden / Leads to: 
Chamber
Door 4: Iron / Leads to: Chamber
Door 5: Iron, barred or locked / Leads to: 
Stairs (if not multi-level then reroll)
Door 6: Wooden / Leads to: Chamber
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Square, 20 x 20 ft.
Number of exits: 0
Exit locations:
Exit types:
Description
Purpose: Crypt for less important burials
Current state: Holes, floor partially collapsed
Contents: Empty room with Dungeon hazard
Possible feature: Mold (common); Pole, broken (5 ft. long); Rope, rotten
Possible furnishings: Table, low; Sheet; Sofa
(Religious) Possible furnishings: Columns or pillars; Idol, Tripod
(Mage) Possible furnishings: Statue; Vestments; Vestments
Possible personal items: Parchment; Ewer; Lamp or lantern
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: Up to a dead end
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Grease
Book, Scroll, or Tome: Letter
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Hide from enemies
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
Trigger: Moved through (doorway, hallway)
Severity: Setback
Effect: Glyph of warding
Random Tricks
Tricks are quirky and less deadly than a trap. Some tricks are permanent, others can be dispelled with Dispel Magic.
Object: Target dummy
Effect: Grants a wish
Shout outs: Stacey, Max Puplett, Gordon Alexander Fallon, Gary, John Nazario, Lucia Rahberger, Sunscryer, Grey, Michael Sangregorio, Moonstar Morris, Keaton Permenter, Shazear, Richard Cotterill, Isaac Bergum, I_Maximus
Their contribution stands as a beacon of hope for all adventurers!
