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: 
Passage, 10ft. wide; four-way intersection
Description
Noises: Gong
Air: Clear and damp
Odors: Dank or moldy
Purpose: Latrine or bath
Current state: Pristine and in original state
Contents: Monster (random creature)
Possible feature: Dripping blood; Damp ceiling; Sword blade, broken
Possible furnishings: Brazier and charcoal; Wood billets; Wood billets
(Religious) Possible furnishings: Drum; Incense burner, Paintings or frescoes
(Mage) Possible furnishings: Cloth, altar; Thurible; Idol
Possible personal items: Statuette or figurine; Wool; Brush
Passages
Passage Width: 
10 ft. / Leads to: 
Chamber
Extra passages (if necessary):
2nd Passage Width:
10 ft. / Leads to: Chamber3rd Passage Width:
10 ft. / Leads to: Chamber4th Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., side passage to the left, then an additional lO ft. ahead
Doors
Door: Wooden / Leads to: Chamber
Extra doors (if necessary):
Door 2: Iron, barred or locked / Leads to: 
Passage 20 ft. straight ahead
Door 3: Iron, barred or locked / Leads to: Passage 20 ft. straight ahead
Door 4: Iron, barred or locked / Leads to: Chamber
Door 5: Wooden / Leads to: Chamber
Door 6: Wooden / Leads to: Chamber
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Rectangle, 30 x 60 ft.
Number of exits: 4
Exit locations: Wall right of entrance / Wall right of entrance / Wall right of entrance / Wall left of entrance /
Exit types: Door / Corridor, 10ft. long / Door / Corridor, 10ft. long /
Description
Purpose: Armory stocked with weapons and armor
Current state: Furniture wrecked but still present
Contents: Empty room with Dungeon hazard
Possible feature: Cobwebs; Water, large puddle; Sticks
Possible furnishings: Stool , high; Fresco; Pedestal
(Religious) Possible furnishings: Bells; Idol, Vestments
(Mage) Possible furnishings: Thurible; Holy or unholy symbol; Lamp
Possible personal items: Mirror; Salve or unguent; Pipe, musical
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: Strips
Book, Scroll, or Tome: Prayer book
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Avoid danger
Personality: Braggart; makes a show of bravery but runs from danger.
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: Battering winds reduce speed by half, impose disadvantage on ranged attack rolls
Random Traps
Trigger: Touched (doorknob, statue)
Severity: Setback (DC 11, +3 to-hit)
Effect: A weapon, suit of armor, or rug animates and attacks when touched (see 'Animated Objects' in the Monster Manual)
| 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: Book
Effect: Helps or harms certain types of creatures
Shout outs: Stacey, Mario Pizzamiglio, Eric Schreeck, Ben-Jam-in, 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, Pythor Sen, Bryson Waits, Desedent, Michael Isberg, Nat, Thomas Wilhelm, Krueger82, 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, Lars Yell, Zee Livezey, Kevin, Kerry Melton, Mary Kieser, SallySparrow132, Naomi B, J, Millergendraft, Federica Frezza, Nick Soucy, Ellen Mitchell, Melanie Warga, Jeremiah Walker, Bryan Sheairs, Bryan Kempka, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Jennifer Smith, Liz Fontain, Ray Bissonnette, Joe Dalby, Joline Tran, 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, Alex Harford (VA7OMM), jeremy baisch, Daniel Edwards, Zealot23, Shane Andrews, Brandon Mußiq, CJMAXP, Lisa Tucker, KingHavok1217, Mx Charlie, Justin Snyder, Zachary Burgess-Hicks, Shazear, Steve Rosenlund, Ezzela1891, John Nazario, Gordon Alexander Fallon, Jason Clark, Trey Vickory
Their contribution stands as a beacon of hope for all adventurers!
