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: 
Passage, 10ft. wide; four-way intersection
Description
Noises: Whispering
Air: Clear and drafty
Odors: Dank or moldy
Purpose: Storage for mundane goods and supplies
Current state: Stripped bare
Contents: Monster (random creature) guarding treasure hoard found in a loose stone
Possible feature: Bones; Water, trickle; Dust
Possible furnishings: Table, long; Bag; Charcoal
(Religious) Possible furnishings: Robes; Whistle, Altar
(Mage) Possible furnishings: Stand; Prayer rug; Brazier
Possible personal items: Pipe, smoking; Yarn; Flask or jar
Passages
Passage Width: 
40ft. wide, 20ft. high, gallery 10ft. above floor allows access to level above / Leads to: 
Chamber
Extra passages (if necessary):
2nd Passage Width:
40ft. wide, 20ft. high, gallery 10ft. above floor allows access to level above / Leads to: 
Continue straight 20ft., side passage to the left, then an additional 10 ft. ahead3rd Passage Width:
20 ft. / Leads to: Chamber4th Passage Width:
40ft., with pillars / Leads to: 
Continue straight 20ft., comes to a dead end; 10 percent chance of a secret door
Doors
Door: Wooden / Leads to: False door with trap
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: Stone, barred or locked / Leads to: Chamber
Door 5: Wooden / Leads to: Chamber
Door 6: Wooden, barred or locked / Leads to: 
Passage 20 ft. straight ahead
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Octagon, 60 x 60 ft.
Number of exits: 3
Exit locations: Wall opposite entrance / Same wall as entrance / Wall left of entrance /
Exit types: Door / Corridor, 10ft. long / Door /
Description
Purpose: Study, including a writing desk
Current state: Rubble, ceiling partially collapsed
Contents: Monster (pet or allied creature)
Possible feature: Slime (harmless); Cobwebs; Dagger hilt
Possible furnishings: Table, long; Workbench; Pillow
(Religious) Possible furnishings: Statue; Holy or unholy symbol, Shrine
(Mage) Possible furnishings: Tripod; Drum; Candlesticks
Possible personal items: Bowl; Decanter; Book
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: Chimney up two levels to a passage 20ft. long
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Grains
Book, Scroll, or Tome: Letter
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Recover from a battle
Personality: Joker; taunts its enemies.
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: Moved through (doorway, hallway)
Severity: Deadly (DC 17, +12 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: Burning fire
Effect: Induces greed
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!
