A small script. An entire world.
Pocket Moon
Foundry.
Somewhere, a moon is missing its cartographer. Give it a name, scatter a few craters, and bring back an atlas from a place that never existed.
Field notebook / five landing sites
Where shall we land?
Choose a numbered survey marker. Every expedition deserves one wildly unnecessary discovery.
The little-script idea behind this moon
In 2006, Jon wrote about a free place to experiment with one-off PHP scripts. This is one: your form sends a few values to PHP, which draws a repeatable crater map and returns a complete SVG atlas. No account, no installation. Just a small idea with its own address.
?name=Moon+of+Small+Wonders&seed=2046&craters=24&tint=35&phase=0
Try changing only the seed. Then change only the crater count. The earliest craters stay put as the map fills in.
The underlying terrain is original GPT Image artwork; PHP adds your survey, tint, shadow, and numbered landing sites.
Save this page’s address to return to exactly this world. The downloaded atlas includes its artwork and can be opened or printed on its own.