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: 
Passage, 10 ft. wide; T intersection
Description
Noises: Bellowing
Air: Clear and damp
Odors: Earthy
Purpose: Robing room for priests to prepare for burial rituals
Current state: Furniture wrecked but still present
Contents: Random Trap protecting treasure found in behind furniture
Possible feature: Cracks, ceiling; Wax blob (candle stub); Leaves and twigs
Possible furnishings: Fresco; Bunks; Blanket
(Religious) Possible furnishings: Pews; Statue, Font
(Mage) Possible furnishings: Thurible; Columns or pillars; Brazier
Possible personal items: Book; Book; Lamp or lantern
Passages
Passage Width: 
20 ft. / Leads to: 
Continue straight 30ft., no doors or side passages
Extra passages (if necessary):
2nd Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead3rd Passage Width:
10 ft. / Leads to: Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead4th Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., door to the right, then an additional 10 ft. ahead
Doors
Door: Wooden / Leads to: 
Passage 20 ft. straight ahead
Extra doors (if necessary):
Door 2: Stone, barred or locked / Leads to: False door with trap
Door 3: Iron, barred or locked / Leads to: 
Chamber
Door 4: Wooden / Leads to: Passage 20 ft. straight ahead
Door 5: Wooden / Leads to: Chamber
Door 6: Stone, barred or locked / 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: 
Square, 50 x 50 ft.
Number of exits: 4
Exit locations: Wall right of entrance / Wall left of entrance / Wall left of entrance / Wall opposite entrance /
Exit types: Corridor, 10ft. long / Door / Door / Door /
Description
Purpose: Tomb where the wealthiest and most important folk are interred, protected by secret doors and traps
Current state: Stripped bare
Contents: Random Trick
Possible feature: Cracks, wall; Dampness, wall; Mold (common)
Possible furnishings: Staff, normal; Idol (large); Tub
(Religious) Possible furnishings: Holy or unholy symbol; Whistle, Candelabra
(Mage) Possible furnishings: Tripod; Cloth, altar; Incense burner
Possible personal items: Statuette or figurine; Bottle; Pan
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 three levels to a chamber
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Cinders
Book, Scroll, or Tome: Text on medicine
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Hide from enemies
Personality: Fanatic; ready to die fighting.
Random Hazards
Hazard: Brown mold (Frigid temperature. DC 12 Con, 4d10 cold damage, half on save. Immune to fire, causes it to expand. Destroyed by cold)
Random Obstacles
Obstacles block or hamper progress and can affect more than one room.
Obstacle: Reverse gravity effect causes creatures to fall toward the ceiling
Random Traps
Trigger: Stepped on (floor, stairs)
Severity: Deadly (DC 18, +10 to-hit)
Effect: Magic missiles shoot from a statue or object
| Damage | |
|---|---|
| Level 1-4: | 4d10 |
| Level 5-10: | 10d10 |
| Level 11-16: | 18d10 |
| Level 17-20: | 24d10 |
Random Tricks
Tricks are quirky and less deadly than a trap. Some tricks are permanent, others can be dispelled with Dispel Magic.
Object: Suit of armor
Effect: Changes a character's alignment, personality, size, appearance, or sex when touched
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Their contribution stands as a beacon of hope for all adventurers!
