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: 
Circle, 40ft. diameter; one passage at each cardinal direction
Description
Noises: Tapping
Air: Clear and damp
Odors: Dank or moldy
Purpose: Stable
Current state: Furniture wrecked but still present
Contents: Monster (random creature)
Possible feature: Cobwebs; Dripping blood; Sticks
Possible furnishings: Grindstone; Box (large); Pail
(Religious) Possible furnishings: Bells; Tripod, Shrine
(Mage) Possible furnishings: Statue; Incense burner; Tripod
Possible personal items: Book; Candle; Brush
Passages
Passage Width: 
30 ft. / Leads to: 
Continue straight 20ft., side passage to the left, then an additional 10 ft. ahead
Extra passages (if necessary):
2nd Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., then the passage turns left and continues 10 ft.3rd Passage Width:
10 ft. / Leads to: 
Chamber4th Passage Width:
10 ft. / Leads to: Continue straight 20ft., side passage to the left, then an additional 10 ft. ahead
Doors
Door: Wooden / Leads to: 
Passage 20 ft. straight ahead
Extra doors (if necessary):
Door 2: Wooden / Leads to: 
Passage extending 10ft., then T intersection extending 10ft. to the right and left
Door 3: Wooden / Leads to: Chamber
Door 4: Portcullis / Leads to: Passage extending 10ft., then T intersection extending 10ft. to the right and left
Door 5: Wooden / Leads to: Chamber
Door 6: Wooden / Leads to: Diagonal (or turn) Passage 20 ft. to the right
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Square, 50 x 50 ft.
Number of exits: 2
Exit locations: Wall left of entrance / Same wall as entrance /
Exit types: Corridor, 10ft. long / Door /
Description
Purpose: Storage for mundane goods and supplies
Current state: Pool of water; chamber's original contents are water damaged
Contents: Random Event (or empty room)
Possible feature: Iron bar, bent and rusted; Rubble and dirt; Damp ceiling
Possible furnishings: Firkin (small cask, 10 gallons); Desk; Screen
(Religious) Possible furnishings: Holy or unholy symbol; Vestments, Thurible
(Mage) Possible furnishings: Shrine; Candelabra; Cloth, altar
Possible personal items: Casket (small); Casket (small); Wig
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: Paste
Book, Scroll, or Tome: Account records
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Seek wealth
Personality: Cowardly; looking to surrender.
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: Wall of fire blocks passage
Random Traps
Trigger: Moved through (doorway, hallway)
Severity: Setback (DC 11, +3 to-hit)
Effect: Lightning bolt shoots from wall or object
| 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: Painting
Effect: Induces greed
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Their contribution stands as a beacon of hope for all adventurers!
