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: Mine (Click to make permanent). or choose:
Starting Area: 
Passage, 10ft. wide; four-way intersection
Description
Noises: Chanting
Air: Clear and damp
Odors: Dank or moldy
Purpose: Cistern providing drinking water for miners
Current state: Pool of water; chamber's original contents are water damaged
Contents: Empty room with 
Stairs (if not multi-level then reroll)
Possible feature: Cracks, floor; Dripping blood; Dampness, wall
Possible furnishings: Staff, normal; Stool, normal; Sofa
(Religious) Possible furnishings: Bells; Candelabra, Idol
(Mage) Possible furnishings: Screen; Altar; Shrine
Possible personal items: Mirror; Spigot; Pot
Passages
Passage Width: 
20 ft. / Leads to: 
Continue straight 30ft., no doors or side passages
Extra passages (if necessary):
2nd Passage Width:
20 ft. / Leads to: 
Continue straight 20ft., door to the left, then an additional 10 ft. ahead3rd Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., door 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: Stone / Leads to: 
Chamber
Extra doors (if necessary):
Door 2: Wooden / Leads to: Diagonal (or turn) Passage 20 ft. to the right
Door 3: Portcullis / Leads to: Chamber
Door 4: Wooden / Leads to: Diagonal (or turn) Passage 20 ft. to the left
Door 5: Portcullis, locked in place / Leads to: 
Passage 20 ft. straight ahead
Door 6: Portcullis, locked in place / 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: 
Trapezoid, roughly 40 x 60 ft.
Number of exits: 3
Exit locations: Wall opposite entrance / Wall left of entrance / Same wall as entrance /
Exit types: Door / Corridor, 10ft. long / Corridor, 10ft. long /
Description
Purpose: Storage for tools and other equipment
Current state: Used as a campsite
Contents: Random Trap
Possible feature: Dripping blood; Cobwebs; Mold (common)
Possible furnishings: Fountain; Staff, normal; Chair, plain
(Religious) Possible furnishings: Pews; Shrine, Tripod
(Mage) Possible furnishings: Robes; Gong; Idol
Possible personal items: Scroll; Twine; Tureen
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: Paste
Book, Scroll, or Tome: Text on local flora
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Find a sanctuary
Personality: Bully; refuses to believe it can lose.
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: Cave-in
Random Traps
Trigger: Moved through (doorway, hallway)
Severity: Dangerous (DC 14, +6 to-hit)
Effect: Collapsing staircase creates a ramp that deposits characters into a pit at its lower end
| Damage | |
|---|---|
| Level 1-4: | 2d10 |
| Level 5-10: | 4d10 |
| Level 11-16: | 10d10 |
| Level 17-20: | 18d10 |
Random Tricks
Tricks are quirky and less deadly than a trap. Some tricks are permanent, others can be dispelled with Dispel Magic.
Object: Sphere of magical energy
Effect: Helps or harms certain types of creatures
Shout outs: Stacey, Warren Clarida, Brian Rivers, Luke P, David Schraff, Ivee Quinn, Rachel Anderson, Brian Tanner, Serafina Moon, Thomas Spence, Armand Desharnais, Trev909, Bob Goode, TODD RICHARD, Josh Braden, Iofire, Caitlin W., Damon Carrington, Mario Pizzamiglio, Phil Mehl, Wesley Muncy, elijah D. maben, R., Vincent Drone, thea musing, Brian Nunziato, Matt Yates, Elisa Martinez, Ryan Flagg, Jade Arrowood, Angelo Anderson, Syn21, Dave Walker, Jonathan Lekse, JollyGamer, Tiernan Greenman, Burlyfighter, David R Abbott, Rick Marsh, 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, Jordan Florez, 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, Gundar Wez, Nahellion, That Video Editor Nic, bilbens baggo, Stuart, Brysen Packer, Maxwell Mayer, Thobek, 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, Festus, Lisa Tucker, KingHavok1217, Mx Charlie, Justin Snyder, Zachary Burgess-Hicks, Steve Rosenlund, Ezzela1891, John Nazario, Gordon Alexander Fallon, zachary gee, Jason Clark
Their contribution stands as a beacon of hope for all adventurers!
