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, 20 x 20ft.; door on two walls, passage in third wall
Description
Noises: Jingling
Air: Clear and damp
Odors: Earthy
Purpose: Armory stocked with weapons and armor
Current state: Ashes, contents mostly burned
Contents: Monster (random creature)
Possible feature: Stones, small; Dung; Slime (harmless)
Possible furnishings: Buffet cabinet; Chair, padded; Chair, padded, or divan
(Religious) Possible furnishings: Vestments; Stand, Bells
(Mage) Possible furnishings: Holy or unholy symbol; Incense burner; Holy or unholy symbol
Possible personal items: Comb; Plate, platter, or saucer; Brush
Passages
Passage Width: 
10 ft. / Leads to: 
Chamber
Extra passages (if necessary):
2nd Passage Width:
30 ft. / Leads to: 
Continue straight 20ft., comes to a dead end; 10 percent chance of a secret door3rd Passage Width:
10 ft. / Leads to: Diagonal passage to the left for 30 ft (or straight then turn left)4th Passage Width:
10 ft. / Leads to: 
Stairs (if not multi-level then reroll)
Doors
Door: Wooden / Leads to: Chamber
Extra doors (if necessary):
Door 2: Secret door, barred or locked / Leads to: Diagonal (or turn) Passage 20 ft. to the right
Door 3: Secret door / Leads to: Chamber
Door 4: Wooden, barred or locked / Leads to: 
Passage 20 ft. straight ahead
Door 5: Portcullis / Leads to: Passage 20 ft. straight ahead
Door 6: Wooden / 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: 
Rectangle, 20 x 30 ft.
Number of exits: 3
Exit locations: Wall opposite entrance / Wall opposite entrance / Wall opposite entrance /
Exit types: Door / Door / Corridor, 10ft. long /
Description
Purpose: Cistern or well for drinking water
Current state: Holes, floor partially collapsed
Contents: Monster (dominant inhabitant) guarding treasure found in a loose stone
Possible feature: Water, large puddle; Slime (harmless); Rubble and dirt
Possible furnishings: Desk; Tun (huge cask, 250 gallons); Chandelier
(Religious) Possible furnishings: Bells; Holy or unholy symbol, Incense burner
(Mage) Possible furnishings: Side chairs; Pews; Brazier
Possible personal items: Knucklebones or dice; Whetstone; Bowl
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 chamber
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Dust
Book, Scroll, or Tome: Travelogue for an exotic land
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Conquer the dungeon
Personality: Brave; stands its ground.
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: Flooding leaves 2d10 ft. of water in the area; create nearby upward-sloping passages, raised floors, or rising stairs to contain the water
Random Traps
Trigger: Opened (door, treasure chest)
Severity: Dangerous (DC 13, +6 to-hit)
Effect: Spears (possibly poisoned) spring out
| 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: Plant or tree
Effect: Creates a force field
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!
