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:
Starting Area: 
Circle, 40ft. diameter; one passage in each cardinal direction; well in middle of room (might lead down to lower level)
Description
Noises: Murmuring
Air: Clear but cold
Odors: Urine
Purpose: Banquet room for important celebrations
Current state: Holes, floor partially collapsed
Contents: Random Event (or empty room)
Possible feature: Sack, torn; Cobwebs; Sticks
Possible furnishings: Hamper; Shelf; Bag
(Religious) Possible furnishings: Idol; Shrine, Curtain or tapestry
(Mage) Possible furnishings: Stand; Statue; Holy or unholy symbol
Possible personal items: Bottle; Twine; Book
Passages
Passage Width: 
10 ft. / Leads to: 
Continue straight 20ft., comes to a dead end; 10 percent chance of a secret door
Extra passages (if necessary):
2nd Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., then the passage turns right and continues 10ft.3rd Passage Width:
10 ft. / Leads to: Diagonal passage to the left for 30 ft (or straight then turn left)4th Passage Width:
20 ft. / Leads to: 
Continue straight 30ft., no doors or side passages
Doors
Door: Iron / Leads to: 
Chamber
Extra doors (if necessary):
Door 2: Wooden / Leads to: False door with trap
Door 3: Iron / Leads to: Diagonal (or turn) Passage 20 ft. to the left
Door 4: Wooden / Leads to: Chamber
Door 5: Secret door, barred or locked / Leads to: False door with trap
Door 6: Portcullis / 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, 20 x 30 ft.
Number of exits: 0
Exit locations:
Exit types:
Description
Purpose: Storage, mostly nonperishable goods
Current state: Ashes, contents mostly burned
Contents: Random Trap
Possible feature: Hammer head, cracked; Cracks, ceiling; Dagger hilt
Possible furnishings: Fountain; Painting; Pegs
(Religious) Possible furnishings: Robes; Robes, Lectern
(Mage) Possible furnishings: Candelabra; Holy or unholy symbol; Cassocks
Possible personal items: Casket (small); Parchment; Thread
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: Bones
Book, Scroll, or Tome: Diary
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Avoid danger
Personality: Braggart; makes a show of bravery but runs from danger.
Random Hazards
Hazard: Violet fungus: This purplish mushroom uses root-like feelers growing from its base to creep across cavern floors. The four stalks protruding from a violet fungi's central mass are used to lash out at prey, rotting flesh with the slightest touch. Any creature killed by a violet fungus decomposes rapidly. A new violet fungus sprouts from the moldering corpse, growing to full size in 2d6 days.
Random Obstacles
Obstacles block or hamper progress and can affect more than one room.
Obstacle: Chasm 1d4 x 10 ft. wide and 2d6 x 10ft. deep, possibly connected to other levels of the dungeon
Random Traps
Trigger: Moved through (doorway, hallway)
Severity: Setback (DC 10, +3 to-hit)
Effect: Pendulum, either bladed or weighted as a maul, swings across the room or hall
| 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: Door
Effect: Teleports characters to another place
Shout outs: Stacey, Adam Fowler, Amanda Kettles, Angelo Anderson, Appreciate Witch of Life, AstroLass, bilbens baggo, Brian Nunziato, Bryan Sheairs, Brysen Packer, Bryson Waits, Burlyfighter, Caitlin W., Christopher Allbritton, CJMAXP, Connor, Dalton Elliott, Damon Carrington, Daniel Edwards, David Schraff, Dragons With Jetpacks, Elisa Martinez, eric sun, Ezzela1891, Federica Frezza, Gordon Alexander Fallon, Gundar Wez, Iofire, Irate The Pirate, Jade Arrowood, Jake Lane, Jeremiah Walker, Jess, Joe Dalby, John Nazario, JollyGamer, Jonathan Lekse, Jordan Brazeal, Joshua David Maddox, Justin Snyder, Kerry Melton, Kevin, KFB_Patreon, KingHavok1217, Kingyo Senpai, Kyle Clark, Lisa Tucker, Liz Fontain, Lizzie, Lou Bliss, Luke P, Mario Pizzamiglio, Mark L, Matt Yates, Max Hops, Maxwell Mayer, Michael Hamilton, Millergendraft, mtnman1979@aol.com, Mx Charlie, Mylon Schroder, Nahellion, Nathan, Nicholas Zamora, Nick Soucy, Phil Mehl, Phillip P Torchia, Pythor Sen, R., Rachel Anderson, Ray Bissonnette, Remora Jewel, Robert Rich, Robert Skadsem, Ryan Flagg, SallySparrow132, Sarah Holland, Serafina Moon, Shane Andrews, ShortyMcgibble, Sik Makoyi, Siren, Stefan Gottschalk's, Steve Rosenlund, Stuart, Syn21, That Video Editor Nic, thea musing, Trev909, Vedie V, Vincent Drone, Warren Clarida, Wesley Muncy, XMrMonkyx ., Zachary Burgess-Hicks, zachary gee, Zealot23, Zee Livezey
Their contribution stands as a beacon of hope for all adventurers!
