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: Stronghold (Click to make random). or choose:
Starting Area: 
Rectangle, 80 x 20ft., with row of pillars down the middle; two passages leading from each long wall, doors on each short wall
Description
Noises: Hissing
Air: Clear and damp
Odors: Dank or moldy
Purpose: Crypt belonging to the stronghold's master or someone else of importance
Current state: Pool of water; chamber's original contents are water damaged
Contents: Dungeon hazard with incidental treasure found in a pile of junk
Possible feature: Water, trickle; Dust; Wood pieces, rotting
Possible furnishings: Pedestal; Pegs; Hogshead (large cask, 65 gallons)
(Religious) Possible furnishings: Idol; Vestments, Font
(Mage) Possible furnishings: Bells; Drum; Gong
Possible personal items: Parchment; Coffer; Parchment
Passages
Passage Width: 
10 ft. / Leads to: 
Continue straight 20ft., door to the left, then an additional 10 ft. ahead
Extra passages (if necessary):
2nd Passage Width:
20 ft. / Leads to: Continue straight 20ft., door to the left, then an additional 10 ft. ahead3rd Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., then the passage turns left and continues 10 ft.4th Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead
Doors
Door: Portcullis, locked in place / 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: Portcullis, locked in place / Leads to: Chamber
Door 5: Secret door, barred or locked / Leads to: Chamber
Door 6: Wooden / Leads to: 
Passage extending 10ft., then T intersection extending 10ft. to the right and left
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Rectangle, 50 x 80 ft.
Number of exits: 2
Exit locations: Wall right of entrance / Wall opposite entrance /
Exit types: Corridor, 10ft. long / Corridor, 10ft. long /
Description
Purpose: Pantry, including cellar for wine or spirits
Current state: Pristine and in original state
Contents: Monster (random creature) guarding treasure found in a pile of junk
Possible feature: Slime (harmless); Bones; Wax blob (candle stub)
Possible furnishings: Pallet; Table, small; Stool , high
(Religious) Possible furnishings: Offertory container; Whistle, Vestments
(Mage) Possible furnishings: Offertory container; Holy or unholy symbol; Idol
Possible personal items: Vase; Pipe, musical; Bowl
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 one level to a passage 20ft. long
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Husks
Book, Scroll, or Tome: Text on herbalism
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Find a sanctuary
Personality: Rabble; poorly trained and easily rattled.
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: Cave-in
Random Traps
Trigger: Moved through (doorway, hallway)
Severity: Setback (DC 10, +5 to-hit)
Effect: Symbol
| Damage | |
|---|---|
| Level 1-4: | 1d10 |
| Level 5-10: | 2d10 |
| Level 11-16: | 4d10 |
| Level 17-20: | 10d10 |
Random Tricks
Tricks are quirky and less deadly than a trap. Some tricks are permanent, others can be dispelled with Dispel Magic.
Object: Glass sculpture
Effect: Presents a puzzle or riddle
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Their contribution stands as a beacon of hope for all adventurers!
