This is probably not what you’re looking for, but it reminded me of the fan-made Polybius scenario for Kult.

But even if its not what you need, it might be useful as inspiration:

https://kult.tools/Polybius/

Oh, and if you’re not familiar with the urban legend, give it a search on YouTube.

Glad I could help.

One more thing: The official forum is a place full of very nice and helpful people.

I do use it myself for SciFi (mostly for Traveller) and I like it. Of course, the number of available styles is not as overwhelming as the ones available for fantasy, but there are some good options.

One thing worth noting: for Sci-Fi you definitely want the highest tier, which includes Cosmographer and all the annuals.

The page for Cosmographer shows a few styles: https://www.profantasy.com/products/cos3_examples.asp

And here’s a few deckplan exampless on a classic Traveller style: https://www.profantasy.com/products/cos3_deckplans.asp

As for the annuals, there’s this post on the forum with a small screenshot/thumbnail for each issue in most annuals: https://forum.profantasy.com/discussion/10366/cartographers-annual-all-the-issues-linked-in-one-place

Finally, there’s this Youtube Playlist with a few of the mapping sessions that focused on Sci-Fi styles: https://youtube.com/playlist?list=PLrFvDl9qgYgsCVt58a41H3rcDjsAc4P4h

This is an almost-everything bundle. For those unaware, every month they release a style, tool or guide and the 12 months make up each Annual Volume.

This page showcases everything in the latest of the included annuals:

https://www.profantasy.com/annual/2023/2023-cartographers-annual.asp

Feel free to ask if you want the opinion of a happy customer.

Haven’t tried it myself, but Wylock did a video on the mechanics of his own Neon Skies:

https://youtu.be/LlPeZI4ctvE

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