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, 10 ft. wide; T intersection
Description
Noises: Rustling
Air: Clear and damp
Odors: Rotting vegetation
Purpose: Sitting room for family and intimate guests
Current state: Holes, floor partially collapsed
Contents: Monster (dominant inhabitant)
Possible feature: Cracks, wall; Dried blood; Dried blood
Possible furnishings: Stand; Mattress; Chest, medium
(Religious) Possible furnishings: Tripod; Drum, Cassocks
(Mage) Possible furnishings: Incense burner; Brazier; Mosaic
Possible personal items: Food; Scroll; Soap
Passages
Passage Width: 
10 ft. / Leads to: 
Chamber
Extra passages (if necessary):
2nd Passage Width:
20 ft. / Leads to: Chamber3rd Passage Width:
10 ft. / Leads to: 
Continue straight 30ft., no doors or side passages4th Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., door to the right, then an additional 10 ft. ahead
Doors
Door: Wooden / Leads to: 
Stairs (if not multi-level then reroll)
Extra doors (if necessary):
Door 2: Wooden / Leads to: Chamber
Door 3: Wooden / Leads to: Chamber
Door 4: Wooden, barred or locked / Leads to: Diagonal (or turn) Passage 20 ft. to the left
Door 5: Wooden / Leads to: Chamber
Door 6: Stone / 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: 
Square, 40 x 40 ft.
Number of exits: 4
Exit locations: Wall opposite entrance / Wall right of entrance / Wall opposite entrance / Wall left of entrance /
Exit types: Door / Corridor, 10ft. long / Corridor, 10ft. long / Corridor, 10ft. long /
Description
Purpose: Study, including a writing desk
Current state: Used as a campsite
Contents: Random Event (or empty room)
Possible feature: Pick handle; Slime (harmless); Wood pieces, rotting
Possible furnishings: Brazier and charcoal; Chest, large; Stool , high
(Religious) Possible furnishings: Shrine; Tripod, Idol
(Mage) Possible furnishings: Columns or pillars; Vestments; Lamp
Possible personal items: Plate, platter, or saucer; Book; Oil, cooking
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: Stalks
Book, Scroll, or Tome: Travelogue of the planes
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Conquer the dungeon
Personality: Rabble; poorly trained and easily rattled.
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: Setback (DC 11, +5 to-hit)
Effect: Locked room floods with water or acid
| 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: Furniture
Effect: Changes one substance to another, such as gold to lead or metal to brittle crystal
Shout outs: Stacey, Brendan Reese, Riven Fox, Josh Braden, Iofire, Caitlin W., Damon Carrington, zzz, Mario Pizzamiglio, Phil Mehl, Wesley Muncy, elijah D. maben, R., bruschkin, Vincent Drone, thea musing, Brian Nunziato, Matt Yates, Elisa Martinez, Ryan Flagg, Jade Arrowood, Angelo Anderson, Syn21, Dave Walker, Rhonda Seiter, Jonathan Lekse, Katie White, JollyGamer, Tiernan Greenman, Burlyfighter, Gillian Tolbert, David R Abbott, Rick Marsh, Brittany DeNicholas, Phillip Hash, Amanda Kettles, Lou Bliss, Sik Makoyi, Pythor Sen, Bryson Waits, Desedent, Irate The Pirate, Mark L, Siren, AstroLass, Lizzie, Michael Hamilton, Vedie V, Mylon Schroder, Nathan, Jordan Florez, Robert Rich, Rodney O'Dell, Robin Ellis-Foster, Jess, Zee Livezey, Kevin, Kerry Melton, SallySparrow132, J, Millergendraft, Federica Frezza, Nick Soucy, Jeremiah Walker, Bryan Sheairs, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Jennifer Smith, Liz Fontain, Ray Bissonnette, Joe Dalby, Matt Price, Nicholas Zamora, ShortyMcgibble, Mr. Vinclair, mtnman1979@aol.com, KFB_Patreon, eric sun, Kayleigh Sulin, Dani, Gundar Wez, Nahellion, Nicholas Hanke, bilbens baggo, Stuart, Brysen Packer, Maxwell Mayer, Gannon Dubay, Thobek, Aaron Teupe, Mage1X, XMrMonkyx ., Miss Zilla M, Jordan Brazeal, Kyle Clark, Jake Lane, Adam Ruiz, Phillip P Torchia, Stefan Gottschalk's, Remora Jewel, Connor, jeremy baisch, Daniel Edwards, Zealot23, Shane Andrews, Brandon Mußiq, CJMAXP, Lisa Tucker, KingHavok1217, Mx Charlie, Justin Snyder, Keaton Permenter, Zachary Burgess-Hicks, Steve Rosenlund, Ezzela1891, John Nazario, Gordon Alexander Fallon, Jason Clark, Trey Vickory
Their contribution stands as a beacon of hope for all adventurers!
