About Seth
The human behind the mayo jars.
Hey, I'm Seth
I've been playing TTRPGs for over 20 years. Thanks to the isolated environment I grew up in, I spent a lot of time playing online in early IRC chat rooms (does anyone remember IRCLE?). Those early encounters with dice bots sparked an interest in AppleScript and C — and I've been tinkering with code and rolling dice ever since.
I pursued both hobbies until college, when a desire to do something for my community led me into an English teaching career. After a decade in the classroom, I started an IT business, which brought coding back into my field of view. By combining it with the writing skills I refined as a teacher, I create tools and games that I hope you find enjoyable — an outlet to good stories and good memories with good friends.
You can find my published work on DriveThruRPG — adventures, one-shots, supplements, and GM resources across D&D, Pathfinder, OSR systems, and system-agnostic content.
The name "Two Gallons of Mayo" started as a bit. It stuck. Now it's a brand, which is both funny and something I have to explain at family dinners. The logo has mayo jars. It's on purpose.
What I Play
Personal favorites first, then the rest of the rotation:
Background
I've been GMing for over a decade — which means I've made every possible mistake at the table at least twice and learned from most of them. I started publishing TTRPG content because I kept making stuff for my home games that other GMs told me they wanted to use too.
I'm primarily a designer and writer, but I also have a background in web development, which is why this site exists and why I offer digital tools as part of my freelance work. The TTRPG space needs more good software, and I'm in a weird position of being able to do both sides of that.
My design philosophy: systems should stay out of the way of the story. If players are doing math instead of making decisions, something's wrong.
What I Do
- TTRPG adventure and supplement writing
- Developmental and copy editing for TTRPG publications
- PDF and print layout and graphic design
- Web development for TTRPG creators and publishers
- Digital tools: generators, builders, campaign apps
- Publishing on DriveThruRPG (indie and freelance)
- System design: D&D 5e, Pathfinder, OSR, and original