Redditor Kari Hoffren had been homebrewing swamp and sewer encounters for a while before deciding to collate them into one file.
As sometimes happens, that project grew and grew. The /r/unearthedarcana helped balance some of the monsters. A random generator was added. The file of homebrew was made to look like a D&D product that wouldn’t look out of place in your game collection.
A few weeks later, Melvin’s Minute Monsterium: Swamps & Sewers was published as a PDF to Google Docs. You can download your own copy for free.
The finished (for now) booklet has guidelines and tips for running adventures in all sorts of different wetlands. There are random encounter tables for each too.
The booklet has over 20 new monsters, custom encounter ideas and that random sewer generator at the end.
Including appendixes, covers, credits and the index, the whole download weighs in at an impressive 38-pages.
As you can see, the booklet is packed full of art (hopefully all appropriately licensed – it’s undoubtedly all carefully credited) and looks absolutely stunning.
It’s a fan project, not for sale and made under the Fan Content Policy. That’s the thing about roleplayers. Fans of systems get involved in projects like this, labours of love that might seem unique or unusual to outsiders but which are likely to be useful for DMs around the world.
Check the comments below to see what readers have to say.