[richard_mcp]

I never read those magazines and I can't say I'm an expert on dungeon map styles, but it's the hatching done in the dungeon walls that Dyson is known for (e.g., https://dysonlogos.blog/2011/09/03/dungeon-doodles-a-crossha...).

It looks like the person that made this program started playing around with the idea May 9 (https://twitter.com/probabletrain/status/1259172635776294912) a day after Dyson started tweeting about his program (https://twitter.com/DysonLogos/status/1258797586464542723).

I think Dyson's program is just a Photoshop extension and Dungeon Scrawl looks way more powerful, but it's worth pointing out the very similar timelines and styles.

[BorisTheBrave]

Here's someone playing with the concept even earlier though. It did the rounds on reddit at the time, so I'd assumed it was the inspiration.

https://twitter.com/watawatabou/status/1197194111171940352

(in aother tweet, @watawatabou attributes the style to Dyson, though the idea of doing it programatically).