I just noticed that I had received my contributor copy of Dead Light and Other Dark Turns supplement for Call of Cthulhu from Chaosium. I can now check "Make maps for Call of Cthulhu" from my bucket list and I'm super excited to finally tell you what I've been working on lately.
So, I did a bunch of maps and handouts for this supplement and it was really great. I learned a lot from this and I'm definitely going to put that knowledge in use when making maps for Patreon releases. I did a manor and some area maps, and a set of handouts on top of the maps. The handouts were an interesting thing to work on. I don't remember making handouts ever before and as I had to study some references first, I was just astounded by the level of detail represented in the Call of Cthulhu handouts. It's really impressive and it was awesome to contribute to this.
I recommend you check out the supplement from the link above. I do not get anything if you purchase this book, but if you join my Patreon, that's going to help me out a lot! Thanks!
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Oh, yeah! Here are some samples of what I did for this. I'll save the rest for you so I don't accidentally spoil anything as there are some pretty cool puzzles and adventures in this 90-page book:

Weyland House, Copyright Chaosium Inc.

Some handouts. Copyright Chaosium Inc.
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Cheers,
Miska