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: Temple or shrine (Click to make permanent). or choose:
Starting Area: 
Rectangle, 80 x 20ft., with row of pillars down the middle; two passages leading from each long wall, doors on each short wall
Noises: Humming
Air: Clear, with smoke covering ceiling
Odors: Dank or moldy
Purpose: Cells where the faithful can sit in quiet contemplation
Current state: Ashes, contents mostly burned
Contents: Random Trap
Possible feature: Guano; Ashes; Wood pieces, rotting
Possible furnishings: Shelf; Pegs; Chest, large
(Religious) Possible furnishings: Bells; Incense burner, Curtain or tapestry
(Mage) Possible furnishings: Robes; Robes; Prayer rug
Possible personal items: Horn, drinking; Pipe, musical; Jug or pitcher
Passages
Passage Width: 
10 ft. / Leads to: 
Continue straight 30ft., no doors or side passages
Extra passages (if necessary):
2nd Passage Width:
10 ft. / Leads to: 
Chamber3rd Passage Width:
30 ft. / Leads to: Chamber4th Passage Width:
10 ft. / Leads to: Chamber
Doors
Door: Wooden / Leads to: False door with trap
Extra doors (if necessary):
Door 2: Wooden / Leads to: 
Passage 20 ft. straight ahead
Door 3: Wooden / Leads to: Chamber
Door 4: Wooden / Leads to: Chamber
Door 5: Portcullis, locked in place / Leads to: Passage 20 ft. straight ahead
Door 6: Iron / Leads to: Chamber
Chamber (Rooms)
Whenever a passage, door, or anything else results in a chamber, use one of these.
Dimensions: 
Rectangle, 50 x 80 ft.
Number of exits: 1
Exit locations: Wall left of entrance /
Exit types: Corridor, 10ft. long /
Purpose: Crypt for a high priest or similar figure, hidden and heavily guarded by creatures and traps
Current state: Rubble, ceiling partially collapsed
Contents: Monster (pet or allied creature)
Possible feature: Water, large puddle; Spike, rusted; Coin, copper
Possible furnishings: Pallet; Idol (large); Shelf
(Religious) Possible furnishings: Candles; Altar, Shrine
(Mage) Possible furnishings: Shrine; Incense burner; Idol
Possible personal items: Food; Wool; Vial
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 to a dead end
Contents
Whenever a container or book is generated, use this to determine its contents
Container Contents: Powder
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: Conquer the dungeon
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: Moved through (doorway, hallway)
Severity: Deadly
Effect: Touching an object triggers a disintegrate spell
Random Tricks
Tricks are quirky and less deadly than a trap. Some tricks are permanent, others can be dispelled with Dispel Magic.
Object: Skull
Effect: Casts suggestion on the characters
Shout outs: Stacey, John Patrick Callahan Jr, Gordon Alexander Fallon, and Max Puplett.
Their contribution stands as a beacon of hope for all adventurers!
