This grid based floorplan generator is ideal to create encounter locations for your favorite pen & paper rpg. Select what terrain each square should be and the program produces multi page PDFs ready to be printed.
User reviews:
Positive (15 reviews) - 93% of the 15 user reviews for this software are positive.
Release Date: May 18, 2017

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Early Access Software

Get involved with this software as it develops.

Note: This Early Access software is not complete and may or may not change further. If you are not excited to use this software in its current state, then you should wait to see if it progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Our goal is to make this software great for many type of users and role playing games. The best way to do this is to get people to use it as early as possible so that your suggestions can help us improve the floorplan generator.”

Approximately how long will this software be in Early Access?

“About 6 to 12 months.”

How is the full version planned to differ from the Early Access version?

“The final product should be more polished and have some more features and instructions as well. Hopefully the community has also given us some good ideas that have been incorporated.

There will probably be more terrains and icons as well.”

What is the current state of the Early Access version?

“It is fully functional when it comes to creating floorplans and exporting them. There will probably be a few bugs, but they will get fixed when they are found. What is far from completed is documentation (none so far) and the random map editor (very user unfriendly).”

Will this software be priced differently during and after Early Access?

“Price will stay the same during early access but might change when it is over.”

How are you planning on involving the Community in your development process?

“We will gladly accept wishes, suggestions and bug reports on the forum. Hopefully your comments will help make a better floorplan generator.”
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Recent updates View all (8)

June 19

Illwinter's Floorplan Generator 0.74

This update adds some new features and fixes a bug with edge walls.


  • Draw walls as black option
  • New terrains: BW line walls
  • h/s to hide/show all icon categories
  • ? for help in icon menu
  • Edge walls didn't take ground into account for straightness

0 comments Read more

June 15

Illwinter's Floorplan Generator 0.73

This is a Windows only update that adds workshop support for Windows too.


  • Steam workshop support for Windows

0 comments Read more
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About This Software

Illwinter's Floorplan Generator is a grid based dungeon and wilderness floorplan creator. The floorplan generator can be used to quickly draw and print an encounter floorplan for your favorite pen and paper roleplaying game. It is very quick and easy to create a simple floorplan, you just select what terrain type each square should be and the program fixes the rest. E.g. a cave wall next to a rocky ground will automatically create a jagged wall, but the same cave wall next to a marble floor would create a much smoother wall because this is likely to be an indoor room with polished walls.

  • About 50 different terrain types to choose from
  • Some icons included for the most common objects, e.g. doors, stairs, tables, beds, trees, bushes, pentagram
  • Color maps or old school black and white style
  • Adjacent terrains interact automatically to create jagged edges, smooth transitions and shadows when necessary
  • Random fractals used to create shapes for cave walls, rivers and other non regular terrains
  • Create a multi-page pdf with the dungeon divided into pages suitable for printing
  • Export dungeon as a single png suitable for roll20 and similar applications
  • Configurable square and paper sizes, (default is 1 inch squares on A4 pages)
  • Outdoor and dungeon shadows with configurable strength
  • Export to your favorite paint program for finishing touches
  • Import your own icons
  • Configurable grid, default is to not draw it on top of walls and with thicker lines between pages
  • Grid based, terrain is placed in squares or on square edges (icons can be placed and rotated freely)
  • Shortcuts to quickly put a random door, tree or bush in a square
  • Dungeon layout can be imported from a simple ASCII text file, like this
  • Create random dungeons automatically (not fully implemented)
  • Editor to create rules for your own random dungeon (not fully implemented)

System Requirements

Mac OS X
SteamOS + Linux
    • OS: win 7 or later
    • Processor: Intel Core 2 Duo or better
    • Memory: 2 GB RAM
    • Storage: 200 MB available space
    • OS: 10.12 or later
    • Processor: Intel Core 2 Duo or better
    • Memory: 2 GB RAM
    • Storage: 200 MB available space
    • OS: any 32- or 64-bit distro that can run Steam
    • Processor: Intel Core 2 Duo or better
    • Memory: 2 GB RAM
    • Storage: 200 MB available space
Customer reviews Learn More
Positive (15 reviews)
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