Campaign Mastery

Today, I offer a new technique for rolling multiple dice many times with great efficiency. Any RPG can benefit from that! I hope everyone had a wonderful Christmas break. Mine was great, though not without its challenges – but I have evidently weathered them, because here we all are, in a bright and shiny New […]

The AEE is a subsystem that slots into any RPG for simulating everything from Bad Weather to Plagues & Poisons. The Backstory A while back, I was working on an adventure for one my campaigns (being deliberately vague, here) and I needed to look up the effects of Cobra Venom in the Hero System. I […]

Iteration is one of the most useful campaign planning tools I can think of. This article demonstrates the technique and why it should be your favorite, too. It’s been a while since I wrote about iteration and how to use it – in fact, the last time it was the focus of attention was, (I […]

A quick post today about GMs seeking validation plus one or more bonus topics, number depending on time. 1. Keep Your Ace Up Your Sleeve What’s the biggest metagaming mistake you’ve ever made outside of anything approaching a plot train? Let me tell you mine. The scenario was over, and it hadn’t gone according to […]

Why splitting the party is a natural development, learning to handle it, and techniques that it opens up for the GM. Plus a writing tip or 2! That’s today’s prescription. This is the latest in my series of time-out posts in between the Trade In Fantasy series. Phases Of Experience “Don’t Split The Party” is […]

Today I’m going to walk you through the design of a divided die roll, one of my favorite RPG tools. Dividing one die roll by another creates a large low-result probability and a long tail of low-probability high results. I’ve written about them before in The Physics Of Uncertainty, and used them in Oddities Of […]

There are ways of imparting dynamic life to a background and to characters that are hard work and ways that are easy. This is one of the easy ways. This is the latest in my series of time-out posts in between the Trade In Fantasy series. I’m concurrently reading two books right now: Dr Who […]

Starting and Running a campaign is a lot easier if there’s a clearly understood process that maximizes the opportunities for success and avoids the largest traps and pitfalls. As usual, I worked on the next part of Trade In Fantasy until it became clear that it wasn’t quite going to be ready in time, then […]

Introduction by Mike Today, in support of a new RPG product, The Glumdark, I have a guest post by the author, Christopher Drellow. Glumdark is a massive, fully illustrated, painstakingly constructed resource for Game Masters and players of dark fantasy tabletop roleplaying games. Recommended for the likes of Mörk Borg but totally system agnostic and […]

The last installment of the third Chapter of the series looks as worker productivity and how race and other factors influence it. It’s been an interesting 2025 so far, characterized by things going wrong in unexpected and unusual ways and recovering from those problems. It actually started on New Year’s Eve, when I rebooted my […]

Before you can use a landscape, you have to understand them. Have no fear, this post will equip you with everything you need to know. Pt 1 of 2. This is the third of my time-out posts in between the Trade In Fantasy series. I made the time-out logo from two images in combination: The […]

The 3rd of 4 posts looking at everyday personnel in Trade focuses on the Labor Unit and how to use it to make GMing a business easier. Today’s post starts with a couple of short sections that were inadvertently left out of last week’s examination of carts. They had been written, but not where they […]