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: Tomb (Click to make permanent). or choose:
Starting Area:
Rectangle, 20 x 40ft.; passage on each wall
Description
Noises: Chanting
Air: Clear and warm
Odors: Earthy
Purpose: Crypt for less important burials
Current state: Holes, floor partially collapsed
Contents: Empty room with treasure found in a container (huge chest)
Possible feature: Mold (common); Cobwebs; Slime (harmless)
Possible furnishings: Chandelier; Sheet; Barrel (40 gallons)
(Religious) Possible furnishings: Holy or unholy symbol; Holy or unholy symbol, Statue
(Mage) Possible furnishings: Statue; Vestments; Kneeling bench
Possible personal items: Flask or jar; Lamp or lantern; Thread
Passages
Passage Width:
5 ft. / Leads to:
Stairs (if not multi-level then reroll)
Extra passages (if necessary):
2nd Passage Width:
40ft. wide, 20ft. high, gallery 10ft. above floor allows access to level above / Leads to:
Continue straight 30ft., no doors or side passages3rd 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 20ft., then the passage turns left and continues 10 ft.
Doors
Door: Wooden / Leads to:
Chamber
Extra doors (if necessary):
Door 2: Wooden / Leads to: False door with trap
Door 3: Wooden / Leads to: Diagonal (or turn) Passage 20 ft. to the right
Door 4: Wooden / 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:
Octagon, 60 x 60 ft.
Number of exits: 1
Exit locations: Wall left of entrance /
Exit types: Door /
Description
Purpose: Storage, stocked with tools for maintaining the tomb and preparing the dead for burial
Current state: Pool of water; chamber's original contents are water damaged
Contents: Monster (pet or allied creature) guarding treasure found in a container (huge chest)
Possible feature: Leaves and twigs; Cobwebs; Dripping blood
Possible furnishings: Sconce; Table, round; Statue
(Religious) Possible furnishings: Brazier; Cloth, altar, Incense burner
(Mage) Possible furnishings: Idol; Candles; Font
Possible personal items: Wool; Fork; Candle snuffer
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 chamber
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Grains
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: Seek an item in the dungeon
Personality: Cowardly; looking to surrender.
Random Hazards
Hazard: Yellow mold (On touch, eject sports DC 15 Con, 2d10 poison and poisoned for 1 minute. Take 1d10 each turn while poisoned, repeat saving throw each turn to end. Destroyed by sunlight or fire)
Random Obstacles
Obstacles block or hamper progress and can affect more than one room.
Obstacle: Cave-in
Random Traps
Trigger: Looked at (mural, arcane symbol)
Severity: Dangerous (DC 13, +6 to-hit)
Effect: Lightning bolt shoots from wall or object
| 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: Target dummy
Effect: Wails loudly when touched
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!

