Someone once wrote that good Game Masters seem to know a little bit about everything. If it’s not obvious, this is because they need to know how the world works so they can make their own game settings seem real. I know this first-hand from years of running fantasy campaigns. At one point or another, I found myself digging into the details of agriculture, mining, free diving, sailing, carpentry, sheep breeding, the wool trade, and a dozen other subjects that I never imagined I would research. Of course, this is not limited to fantasy role-playing. When running Gamma World or some other apocalyptic game, a good GM probably needs to know a little about modern firearms, lasers, nuclear radiation, mutation, the ecology of a wasteland, etc. Running Traveller or another sci-fi game, the GM should probably know something about the vacuum of space, space travel, planets, stars, asteroids, comets, gravity, etc. You get the idea.
Not long ago, M.J. Young of the Christian Gamers Guild penned a few short articles on very generic topics, like waterways, country roads, and cities. Though at face value they seem too generic to be helpful, the articles can be surprisingly useful to GMs. Great GMs might know a little about everything, but they don’t start off like that. Everyone needs to pick up basics from someplace, and MJ’s articles were great for anyone not already knowledgeable about those topics. Even veterans can glean some points that they had never considered.
In this brief article, I‘ll touch on another topic that seems like it could be useful to many GMs—sewers. I cannot count the times that I’ve seen modules or homemade adventures with wererats skulking through labyrinthine sewers. Strangely, though I’ve been playing for over thirty-five years, I never played in or ran such an adventure. I recently decided to add a sewer setting to an ongoing campaign, but I realized that I had to find out something about sewers first. As with most things, one topic connects to many others. In this case, I found it tough to examine sewer systems without simultaneously looking at water supplies and plumbing. Read more