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Common Fortress

A member registered Dec 04, 2020 · View creator page →

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This is Komodo & Underground - a game about komodo, who delves into the underground in goal to become a dragon. A quick TTRPG for a single player, written on one page like a pamphlet. 


I'm Mansfeld (Michał, my private first name), and I work in customs administration (while passing archivist technician's trade school). I make tabletop roleplaying games as another node of my creativity related to TTRPG (I blog about it since 2011).

Vials of Mercury” is a collection of adventures for the October Rust, showing how you can interpret Adventure List’s questions. They are intended for quick use: read-&-play. Call them “vials”. Five of them in the PDF (both colour and printer-friendly version).

This is my first add-on to one of my tabletop games.

Thanks ^^ Here's my Seal of Approval too!

At least there's so many TTRPG submissions in! :) Here, in Poland, the indie rpg scene looks like "only two autorhs & their buddies do a lot of work + some accidents once in k4 years". 

Hello! :) I'm Michał Przygodzki, in the internet called as Mansfeld.

I blog about TTRPG since 2011, almost only in Polish, as Twierdza Powszechna (current WordPress, earlier at Blogspot). Currently preparing for some English debut, but it's only a sidenote. I'm writing about RPG Theory and how particular games work. Plus some occasional session reports, but I'm making them rarer and rarer...

Also, I'm a TTRPG designer, because of release of October Rust. I used to make some smaller works before, but only in Polish and I never actually ended them.  One of them had potential as "story hack to Mensch ärgere Dich nicht", the other was an ironic 1-page diceroller towards Cyberpunk hype. 

I did some TTRPG content before (as you may guess, in Polish), including some collection of monsters for Dungeon World, cooperation with Polish site Poltergeist. Overall, I'm trying to be active since 2010, just in 2021 I decided to go seriously & into English territory...

I have some plans for October Rust follow up (like two supplements), and maybe I will design another TTRPG in 12+d8 months.

October Rust is a game about the last stand. "A game of personal fall for the greater stand", as slogan says. Intended for 3-5 people, including one game master.

It's about one-shot heist in goal to try the answer the Final Question of the adventure, in attempt to fix the world or at least alter it. And the world is ungrateful, as early modern fantasy (with some grim and gothic themes) can be. Fallen characters in the world, which went down. Or at least, the protagonist are bastards, but the society is even worse...

October Rust also invokes the grim atmosphere of everlasting rain. And it can only go worse - the weather will escalate, the thunderstom will arrive.

It's done by improvising the adventure (answering five questions of Adventure List, then trying to play it's contents). Then, the game itself will force you to make hard choices about resources you'll spend: either you will need to sacrifice your precious belongings ("trappings"), deny your background or spent your rust points. The latter brings you closer to confessing your Sin from the past. If you don't spend those resources during conflict, you will roll some dice and add months to Doom Clocks (starting in May). When Doom Clock hits December, you perish!

October Rust is a tabletop roleplaying game about personal fall for the greater stand, set in fictional early modern setting. You play protagonists, who makes the final stand to make the last victory against an ungrateful world.  In October Rust, you play one-shot session to play through the heist to make the answer for your common cause. 

It's for 3-5 players: 2-4 players and game master. The one-shot session lasts around three hours. The adventure is made just before the session, by answering five questions (Adventure List). Then, you play to resolve your common Final Question.

The rain will never stop, and the storm is coming!

During Session Zero, players got impression that Moth-Light is a huge, complex game. Just by looking on those Google Sheets.

Thank you! :)

Hi Justin. I plan to start a campaign in Moth-Light soon (January 2021, maybe later). I would like to ask you about possible Roll20 character (and Pact) sheet. It would really help my technical preparations