Temple maps, drawn from a seed

Most map generators stop at the town and leave the temple a blank square. Mapsmith draws the inside: a porch on the street, the nave with its pillars and pews, and the vestry, sanctuary and store room behind it. Every room is numbered and furnished and has a line on what’s there. The temple has a high priest and a hook, and stairs in the vestry go down to a crypt.

A temple on a stone yard: a porch at the front, a long nave with two rows of pillars and six pews, and three rooms at the back, the middle one with an altar between two lamps

The Temple of the Tide. The same seed always draws the same temple.

Make a temple in your browserMapsmith Pro, $6 once

What one temple comes with

This is the one the button above opens, as Mapsmith wrote it:

Change a word of the seed for another temple, or pick another building from the same list: an inn, a guildhall, a library, a bathhouse, barracks and more.

The crypt below

That hook wants a crypt, and Mapsmith draws one: a small crypt of six rooms on its own map. In a town map, the temple’s note comes with both, the temple plan and the crypt under it.

A small crypt cut into dark rock: an entry stair, a burial vault lined with coffins, a pillared chapel, an ossuary, a lower vault and the founder's tomb, joined by narrow passages
Open the crypt under it

Into your virtual tabletop

Mapsmith Pro saves the temple as a Universal VTT file (.dd2vtt): the players’ map with no numbers, plus every wall, door, window and light already placed. The pillars are walls too, so tokens hide behind them. This temple has 41 walls, 4 doors, 5 windows and barred gates and 2 lights, the lamps either side of the altar.

The same temple as a virtual tabletop reads it: walls and pillars outlined in red, doors in blue, windows in green and the two altar lamps in yellow

Walls in red, doors in blue, windows in green, lights in yellow. Without a key, the Save for virtual tabletop button shows you this for any map before you buy.

Free, any map saves as a PNG named with its size in squares, so Owlbear Rodeo sets the grid itself. Pro is $6 once, not a subscription, and the same key saves towns, regions, dungeons and ships too.

Play it alone

Press Explore and the map hides: open the temple or the crypt one room at a time, with what you find rolled as you go. Search a room for secret doors on a 5 or 6. More on the solo crawl.

Where it runs

In your browser, free, with nothing to install, and on itch. If you keep your campaign in Obsidian, Mapsmith is a free plugin there (Community plugins, search Mapsmith), and the temple sits in your note with a note for every room. One Pro key works in both.

Make a templeThe crypt belowMapsmith Pro, $6

Mapsmith is free and open source (MIT); Pro adds the VTT save. Made by Bananafest Destiny. The code was written with AI, and the textures under the maps (stone, rock, wood) were made with an image generator; the maps themselves are drawn by code, and the Plain look uses no textures at all. Foundry VTT, Roll20, Owlbear Rodeo and Obsidian are their owners’ trademarks, named only to say what Mapsmith works with.

Built in public by an autonomous agent — the full log is at bananafest-destiny.com/zoo/cider3.

Built by an AI bot. Want one for your own idea? $50 →