Cave map generator
Roll a cave system at 5 feet to a square: winding caverns with curved walls, high ground standing over low in cliffs you can climb by ladder or slope, pools in the hollows and rope bridges strung between ledges. Glowing crystals and giant mushrooms light the deep parts, and where old rooms are cut into the rock, each one is numbered with a key.
Open this cave
The long dark
Caverns on three heights, in Brushwork
- Size
- 64 × 48 squares
- Ground
- 320 × 240 ft
- Setting
- Dungeon
- Style
- Brushwork
- Objects
- 44
- Tokens placed
- 10
By crystal light
Lit only by what grows down there, in Torchlight
- Size
- 48 × 36 squares
- Ground
- 240 × 180 ft
- Setting
- Dungeon
- Style
- Torchlight
- Objects
- 22
- Tokens placed
- 9
Ice caves
Snow floors, frozen pools and stalagmites, in 8-bit
- Size
- 48 × 36 squares
- Ground
- 240 × 180 ft
- Setting
- Frozen
- Style
- 8-bit
- Objects
- 23
- Tokens placed
- 6
Delvers' halls
Caves with old rooms cut into them, in Storybook
- Size
- 48 × 36 squares
- Ground
- 240 × 180 ft
- Setting
- Dungeon
- Style
- Storybook
- Numbered places
- 8
- Objects
- 46
- Lights
- 9
- Tokens placed
- 9
The map key
Every numbered room comes with its own entry. Point at a number, or at a token to see who's there.
- 1Cell · 30 × 25 ftThe door locks from the inside. Why? A bed, a barrel and rubble. Stairs up.
- 2Storeroom · 20 × 20 ftCrates stamped with a merchant's mark, long out of business. 2 crates, sacks, 3 barrels, a bush and rubble.
- 3Guard room · 25 × 35 ftA table, a bench and a barrel of something strong. A table, a bench, a barrel, a chest, a bush and rubble.
- 4Collapsed room · 40 × 30 ftLoose stones shift underfoot. Rubble. 1 door.
- 5Library · 30 × 35 ftA burnt-down candle and an open ledger on the table. 4 bookshelves, a table and a bench. 1 door.
- 6Collapsed room · 25 × 20 ftPart of the ceiling has come down. Rubble.
- 7Empty room · 25 × 35 ftScratched tallies cover one wall. A bush and rubble. Restless dead: 2 ghosts and a wight.
- 8Library · 30 × 20 ftMost of the books are blank. A few are not. A bookshelf, a table and rubble. 1 door. Giant centipedes: 3 giant centipedes.
What it makes
Curved, not stepped
Cave walls are traced from the rock and bent into natural curves, chipped where they're rock, so the map reads as a cave and still plays square by square.
High ground and low
Plateaus and terraces stand over the cave floor in cliffs, climbed by a slope or a ladder, and rope bridges cross the drops between them where walking round would take far longer.
Water and light
Pools gather in the hollows with mud round them, glowing crystals and giant mushrooms light themselves, and stalagmites stand where the floor is open all round.
Down from anywhere
Generate two or three levels joined by stairs, or link a cave to the spot above it on an area map, so the way in is where the map says it is.
What you can set
- Size
- 32 × 24 up to 96 × 72 squares, or a custom size
- Setting
- Stone, frozen, infernal or sewer
- Heights
- Ground and up to three levels of ledge
- Encounters
- Cave dwellers as tokens, or none
- Exports
- PNG, and Universal VTT with walls, sheer cliffs and lights
Questions
Is it free?
Yes, while we're in early access. You can make, edit and export maps with no account. Sign in when you want to keep them and link them together.
Which games does it work with?
It isn't tied to any rules. Game maps are 5 feet to a square, so they suit any tabletop RPG played on squares. There's no hex grid on game maps yet.
Do the cliffs matter on a virtual tabletop?
Drops of two heights or more export as walls in the Universal VTT file; a one-height ledge is climbable and stays open. In the editor, fog reveals only change height at a ladder, slope or stair.
Can I change the cave after it's generated?
All of it. Paint rock and floor, raise or lower ground, brush slopes across cliffs, lay bridges, and place lights and tokens. It's a map made of real parts, not a flat picture.
How are the maps made?
By rules, not by drawing a picture: the generator lays out the map from a seed, so the same seed gives the same map. Some of the art it draws with is made with image models.
Roll one of your own
Every map here opens in the editor as you see it. Make your own with a click, no account needed.
Open this caveSign in to save your maps and link them together.