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: Stronghold (Click to make permanent). or choose: Death TrapLairLairLairLairMazeMineMineMinePlanar gateStrongholdStrongholdStrongholdStrongholdTemple or shrineTemple or shrineTemple or shrineTombTombTreasure vault

Starting Area: Square, 20 x 20ft.; door on two walls, passage on third wall, secret door on fourth wall
Description

Noises: Bang or slam
Air: Smoky or steamy
Odors: Sulfurous

Purpose: Pantry, including cellar for wine or spirits
Current state: Ashes, contents mostly burned
Contents: Monster (random creature) guarding treasure found in an illusion

Possible feature: Sword blade, broken; Dampness, wall; Cracks, ceiling
Possible furnishings: Cupboard; Cask (40 gallons); Sack
(Religious) Possible furnishings: Side chairs; Idol, Columns or pillars
(Mage) Possible furnishings: Incense burner; Cassocks; Paintings or frescoes
Possible personal items: Sifter or strainer; Soap; Soap

Passages

Passage Width: 10 ft. / Leads to: Continue straight 30ft., no doors or side passages

Extra passages (if necessary):

Doors

Door: Wooden / Leads to: Chamber

Extra doors (if necessary):
Door 2: Iron / Leads to: Chamber
Door 3: Portcullis / Leads to: Chamber
Door 4: Wooden / Leads to: Chamber
Door 5: Wooden / Leads to: Passage 20 ft. straight ahead
Door 6: Portcullis, locked in place / Leads to: Chamber

Chamber (Rooms)

Whenever a passage, door, or anything else results in a chamber, use one of these.

Dimensions: Rectangle, 30 x 40 ft.
Number of exits: 2
Exit locations: Same wall as entrance / Wall right of entrance /
Exit types: Corridor, 10ft. long / Corridor, 10ft. long /

Description
Purpose: Latrine or bath
Current state: Rubble, ceiling partially collapsed
Contents: Random Event (or empty room)

Possible feature: Bones; Cobwebs; Water, trickle
Possible furnishings: Pegs; Chest of drawers; Statue
(Religious) Possible furnishings: Font; Font, Cloth, altar
(Mage) Possible furnishings: Stand; Stand; Candlesticks
Possible personal items: Basket; Fork; Oil, scented

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: Gelatin
Book, Scroll, or Tome: Letter

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: Chasm 1d4 x 10 ft. wide and 2d6 x 10ft. deep, possibly connected to other levels of the dungeon

Random Traps

Trap Generator

Trigger: Moved (cart, stone block)
Severity: Setback (DC 11, +5 to-hit)
Effect: Lightning bolt shoots from wall or object

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: Suppresses magic items for a time

This website exists thanks to the contribution of patrons on Patreon. If you find these tools helpful, please consider supporting this site. Even just disabling your adblocker will help (it's only text and plain image ads I promise). Becoming a patron will upgrade your account to premium, giving you no ads and more features.

Shout outs: Stacey, Alexa Hobusch, Jonathan Lekse, DMMichael7000, Ofelia Greer, Katie White, Subzotic, JollyGamer, Jayden wingler, Yi Tan, Phillip Brewer, Thoueris Zanzibar, Emma Holloway, Ashley Sullivan, Ghostfang1337, Gillian Tolbert, David R Abbott, S.T. Jenkins, Schoxmania Werks, Vanda Leipold, Brittany DeNicholas, Phillip Hash, Ly Anton-Blake, Amanda Kettles, Anthony Brown, Lou Bliss, Treighton, Pythor Sen, myrontheotter, Kassie Nicovara, Michael Isberg, Nat, Cory Evans, Krueger82, BestWorseCaseScenario, Damian Steele, Icarus Unleashed, Mark L, Lj Nielson, Conall Reilly, Alex, Violet Floyd, keith oneal rogers, Moss, William Bamann, Merissa, Patrick Natale, Cam Largent, Thaddeus Johnson, Siren, Donavan Guay, AstroLass, Jack Stevens, Chandlor Desper, Lizzie, Masca Boom, Jordan, Rincewind, Michael Hamilton, Rob Hale, Vedie V, Mylon Schroder, Nathan, Tiffany Mathis, Joseph Mitchell, Jordan Florez, Robert Rich, Robin Ellis-Foster, Deanna Pyle, Jess, Meme Pitt-Melton, E.D.F., Zee Livezey, Kevin, ryan scott, Christianna Schommer, Kerry Melton, Mary Kieser, SallySparrow132, Lunesolace, DJ_Kelf, Cassandra Keyes, Naomi B, Millergendraft, charles phillips, Nick Soucy, Ellen Mitchell, Melanie Warga, Jeremiah Walker, Bryan Kempka, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Jennifer Smith, Ray Bissonnette, Joe Dalby, Nicholas Zamora, Yuki, ShortyMcgibble, mtnman1979@aol.com, KFB_Patreon, eric sun, Bruce Willison, Gundar Wez, Ken Shapiro, Matthew payne, Jacob Plummer, Nahellion, Serena Verden, bilbens baggo, Stuart, Brysen Packer, Galygious, Tim Mason, Maxwell Mayer, Gannon Dubay, Thobek, Aaron Teupe, Celso R Garcia III, Felix Schmäche, XMrMonkyx ., John, Miss Zilla M, RRare, Jordan Brazeal, Kyle Clark, Jake Lane, Adam Ruiz, Phillip P Torchia, Natalie Luttrell, Stefan Gottschalk's, Remora's Jewel, Dawnwolf, Buffonturtle, Christina Majchrzak, jeremy baisch, Ivee Quinn, Zealot23, Shane Andrews, CJMAXP, Chevy Jones, KingHavok1217, Shazear, Curran Vallejo, Steve Rosenlund, Leanna Orr, Ezzela1891, John Nazario, Gary, Gordon Alexander Fallon, Jason Clark, Trey Vickory
Their contribution stands as a beacon of hope for all adventurers!