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: Treasure vault (Click to make random). or choose:
Starting Area: 
Passage, 10ft. wide; four-way intersection
Description
Noises: Rustling
Air: Clear, with smoke covering ceiling
Odors: Stale
Purpose: Prison for holding captured intruders
Current state: Pool of water; chamber's original contents are water damaged
Contents: Monster (dominant inhabitant) guarding treasure found in a pile of junk
Possible feature: Fungi (common); Wood pieces, rotting; Dripping blood
Possible furnishings: Chair, padded, or divan; Fireplace and wood; Table, small
(Religious) Possible furnishings: Holy or unholy symbol; Statue, Offertory container
(Mage) Possible furnishings: Candles; Tripod; Columns or pillars
Possible personal items: Key; Kettle; Vial
Passages
Passage Width: 
10 ft. / Leads to: 
Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead
Extra passages (if necessary):
2nd Passage Width:
20 ft. / Leads to: Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead3rd Passage Width:
10 ft. / Leads to: Continue straight 20ft., side passage to the right, then an additional 10 ft. ahead4th Passage Width:
10 ft. / Leads to: 
Continue straight 30ft., no doors or side passages
Doors
Door: Wooden / Leads to: 
Stairs (if not multi-level then reroll)
Extra doors (if necessary):
Door 2: Wooden / Leads to: 
Chamber
Door 3: Stone / Leads to: Chamber
Door 4: Portcullis, locked in place / Leads to: Chamber
Door 5: Secret door / Leads to: 
Passage 20 ft. straight ahead
Door 6: Wooden, barred or locked / Leads to: Chamber
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 right of entrance / Wall opposite entrance /
Exit types: Corridor, 10ft. long / Corridor, 10ft. long / Corridor, 10ft. long /
Description
Purpose: Strong room or vault, for guarding the treasure hidden in the dungeon, accessible only by locked or secret door
Current state: Furniture wrecked but still present
Contents: Monster (pet or allied creature)
Possible feature: Rags; Dampness, wall; Dampness, wall
Possible furnishings: Bench; Cask (40 gallons); Workbench
(Religious) Possible furnishings: Columns or pillars; Offertory container, Idol
(Mage) Possible furnishings: Incense burner; Bells; Shrine
Possible personal items: Brush; Pipe, smoking; Dish
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: Chimney up two levels to a passage 20ft. long
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Ash
Book, Scroll, or Tome: Novel
Monster
Each monster should have a motivation in the dungeon. Sometimes this might make them peaceful (even if temporarily).
Motivation: Slay a rival
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: Chasm 1d4 x 10 ft. wide and 2d6 x 10ft. deep, possibly connected to other levels of the dungeon
Random Traps
Trigger: Opened (door, treasure chest)
Severity: Deadly (DC 19, +12 to-hit)
Effect: Magic missiles shoot from a statue or object
| Damage | |
|---|---|
| Level 1-4: | 4d10 |
| Level 5-10: | 10d10 |
| Level 11-16: | 18d10 |
| Level 17-20: | 24d10 |
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: Teleports characters to another place
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!
