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: 
Square, 40 x 40 ft.; doors on three walls
Description
Noises: Chirping
Air: Clear but cold
Odors: Urine
Purpose: Workshop for the construction of weapons, armor, tools, and other goods
Current state: Furniture wrecked but still present
Contents: Random Trap
Possible feature: Dampness, wall; Dripping blood; Dust
Possible furnishings: Rug (small or medium); Cask (40 gallons); Armoire
(Religious) Possible furnishings: Incense burner; Chimes, Vestments
(Mage) Possible furnishings: Columns or pillars; Statue; Vestments
Possible personal items: Pan; Comb; Coffer
Passages
Passage Width: 
5 ft. / Leads to: 
Chamber
Extra passages (if necessary):
2nd Passage Width:
10 ft. / Leads to: Chamber3rd Passage Width:
10 ft. / Leads to: 
Continue straight 30ft., no doors or side passages4th Passage Width:
40ft., with pillars / Leads to: 
Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead
Doors
Door: Portcullis, locked in place / Leads to: Diagonal (or turn) Passage 20 ft. to the right
Extra doors (if necessary):
Door 2: Wooden / Leads to: Chamber
Door 3: Wooden / Leads to: 
Passage 20 ft. straight ahead
Door 4: Wooden / Leads to: Passage 20 ft. straight ahead
Door 5: Wooden / Leads to: Chamber
Door 6: Iron, barred or locked / Leads to: 
Stairs (if not multi-level then reroll)
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Circle, 30 ft. diameter
Number of exits: 6
Exit locations: Same wall as entrance / Wall opposite entrance / Same wall as entrance / Wall right of entrance / Wall left of entrance / Wall opposite entrance /
Exit types: Corridor, 10ft. long / Corridor, 10ft. long / Corridor, 10ft. long / Door / Corridor, 10ft. long / Corridor, 10ft. long /
Description
Purpose: Storage, mostly nonperishable goods
Current state: Pristine and in original state
Contents: Random Obstacle
Possible feature: Wax drippings; Wall scratchings; Damp ceiling
Possible furnishings: Mat; Firkin (small cask, 10 gallons); Rug (small or medium)
(Religious) Possible furnishings: Idol; Altar, Holy or unholy writings
(Mage) Possible furnishings: Idol; Lectern; Shrine
Possible personal items: Tinderbox (with flint and steel); Candle; Soap
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 one level to a chamber
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Liquid, viscous
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: Hide from enemies
Personality: Rabble; poorly trained and easily rattled.
Random Hazards
Hazard: Spiderwebs (DC 12 Dex or restrained. DC 12 Athletics or Acrobatics to escape. AC 10, 15 HP, fire vulnerability, immunity to bludgeoning / piercing / psychic)
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 (cart, stone block)
Severity: Deadly (DC 20, +11 to-hit)
Effect: Clanging noise attracts nearby monsters
| 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: Door
Effect: Casts polymorph on the characters (lasts 1 hour)
Shout outs: Stacey, Dragons With Jetpacks, Kingyo Senpai, John Driggers, Warren Clarida, Brian Rivers, Luke P, David Schraff, Ivee Quinn, Rachel Anderson, Serafina Moon, Thomas Spence, Armand Desharnais, Trev909, Bob Goode, Josh Braden, Iofire, Caitlin W., Damon Carrington, Mario Pizzamiglio, Phil Mehl, Wesley Muncy, R., Vincent Drone, thea musing, Robert Skadsem, Matt Yates, Elisa Martinez, Ryan Flagg, Jade Arrowood, Angelo Anderson, Syn21, Dave Walker, Jonathan Lekse, JollyGamer, Tiernan Greenman, Burlyfighter, Brittany DeNicholas, Amanda Kettles, Lou Bliss, Sik Makoyi, Pythor Sen, Bryson Waits, Irate The Pirate, Mark L, Siren, AstroLass, Lizzie, Michael Hamilton, Vedie V, Mylon Schroder, Nathan, Robert Rich, Jess, Zee Livezey, Kevin, Kerry Melton, SallySparrow132, Millergendraft, Federica Frezza, Nick Soucy, Jeremiah Walker, Bryan Sheairs, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Packratt, Liz Fontain, Ray Bissonnette, Joe Dalby, Matt Price, Nicholas Zamora, ShortyMcgibble, Mr. Vinclair, mtnman1979@aol.com, KFB_Patreon, eric sun, Christopher Allbritton, Gundar Wez, Nahellion, That Video Editor Nic, bilbens baggo, Stuart, Brysen Packer, Maxwell Mayer, XMrMonkyx ., Jordan Brazeal, Kyle Clark, Jake Lane, Phillip P Torchia, Stefan Gottschalk's, Remora Jewel, Dalton Elliott, Connor, jeremy baisch, Daniel Edwards, Zealot23, Shane Andrews, Brandon Mußiq, CJMAXP, Lisa Tucker, KingHavok1217, Mx Charlie, Justin Snyder, Zachary Burgess-Hicks, Steve Rosenlund, Ezzela1891, John Nazario, Gordon Alexander Fallon, zachary gee
Their contribution stands as a beacon of hope for all adventurers!
