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: Death Trap (Click to make permanent). or choose:
Starting Area: 
Square, 20 x 20ft.; door on two walls, passage in third wall
Description
Noises: Squeaking
Air: Clear and damp
Odors: Sulfurous
Purpose: Room containing a puzzle that must be solved to bypass a trap or monster
Current state: Pool of water; chamber's original contents are water damaged
Contents: Monster (random creature)
Possible feature: Iron bar, bent and rusted; Hair or fur; Rags
Possible furnishings: Pegs; Workbench; Stool, normal
(Religious) Possible furnishings: Votive light; Holy or unholy symbol, Columns or pillars
(Mage) Possible furnishings: Brazier; Pews; Columns or pillars
Possible personal items: Tray; Pipe, musical; Brush
Passages
Passage Width: 
10 ft. / Leads to: 
Chamber
Extra passages (if necessary):
2nd Passage Width:
40ft., with pillars / Leads to: 
Continue straight 30ft., no doors or side passages3rd Passage Width:
10 ft. / Leads to: 
Continue straight 20ft., comes to a dead end; 10 percent chance of a secret door4th Passage Width:
40ft. wide, 20ft. high, gallery 10ft. above floor allows access to level above / Leads to: Continue straight 30ft., no doors or side passages
Doors
Door: Portcullis, locked in place / Leads to: Chamber
Extra doors (if necessary):
Door 2: Wooden / Leads to: 
Passage 20 ft. straight ahead
Door 3: Wooden / Leads to: Passage 20 ft. straight ahead
Door 4: Portcullis / Leads to: Passage 20 ft. straight ahead
Door 5: Iron, barred or locked / 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: 
Square, 50 x 50 ft.
Number of exits: 3
Exit locations: Same wall as entrance / Same wall as entrance / Wall opposite entrance /
Exit types: Door / Door / Corridor, 10ft. long /
Description
Purpose: Antechamber or waiting room for spectators
Current state: Pristine and in original state
Contents: Random Trick
Possible feature: Mold (common); Coin, copper; Dripping blood
Possible furnishings: Mattress; Cask (40 gallons); Rug (small or medium)
(Religious) Possible furnishings: Holy or unholy symbol; Vestments, Font
(Mage) Possible furnishings: Screen; Font; Shrine
Possible personal items: Brush; Grater; Towel
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 passage 20ft. long
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Paste
Book, Scroll, or Tome: Map or atlas
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Seek wealth
Personality: Joker; taunts its enemies.
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: Reverse gravity effect causes creatures to fall toward the ceiling
Random Traps
Trigger: Looked at (mural, arcane symbol)
Severity: Setback (DC 11, +3 to-hit)
Effect: Spears (possibly poisoned) spring out
| 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: Plant or tree
Effect: Locks or unlocks exits
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!
