Finish this Chart

I found the One-Page Disease chart I'd been working on months ago.  I don't have the mental juice to finish it now.  I will later, but in the mean time thought I'd just give you what I have.  Here is a Word doc.

The idea was to try and capture the biggest archetypal diseases like leprosy and the plague without getting too scientific.  So, what having a disease entails is pretty straightforward for both players and DM, but the catching of them is still kind of spooky-- just being on a ship for a session means you have a chance of catching Ship Fever.

I also divided the diseases into categories because a) it seems like we tend to do that ourselves, treating some diseases as familiar threats to deal with around home and some as fearful exotic things, and b) felt it would help players better know when they might be at risk.

The symptoms are all picked from the standardized list here and try to all have some specific in-game mechanical effect.

What is lacking is symptoms for the diseases of the Wilderness and Underworld and the virulence and lethality numbers (which is really the hardest and most important part- and thus undone).

The disease section of Small But Vicious Dog by Chris Hogan was the starting point for this, so if handling disease interests you you might want to go take a look at his take.

Small but Vicious Rules

If you haven't seen it yet, go check out Chris at Vaults of Nagoh's Small But Vicious Dog. It's a mashup of BX and Warhammer fantasy.  I know nothing about Warhammer fantasy but there are several really interesting subsystems you need to see here.  A social status system that affects combat, saves versus poison that have varying degrees of debilitation, and probably the most elegantly simple rules for addiction I've ever seen.

I'm leaving on a trip in a few hours but this has got me excited about tweaking this to come up with poisons, drugs and diseases for my own campaign.  I think I'll be able to fit each on a single page or less.  And that, my friends, is right down my alley.

p.s.: I think folks could learn a lot from the voice of his rules, too, not treating them as if they exist in a vacuum or as if an abstracted corporate voice is necessarily the easiest to understand.

Disease

Hope I'm not stepping on any of you A-Z blogger toes with this D post.  It's just that I have the time today and have players that have the plague, so I need to explore disease mechanics a little.

First, I'm an idiot, when I posted a little about disease previously, I didn't realize that the Blackmoor digest has a table with more info on the very next page!  My only excuse is that I was in a rush to prepare for the session and was reading it in pdf so it wasn't as obvious.

Unfortunately, it didn't matter because the table didn't answer some of those questions I had anyway.  In fact, the one thing the text was clear on, chance of catching the disease, the table contradicts-- 90% vs 1%.  The only way I can understand this is that the lower number applies to player characters and the higher to anyone else once pcs are infected.  But that's a guess, it doesn't say that.

Ok, establishing that, no, those rules aren't going to help me as written, let's forge on.

Different Rules for Sieges
Disease may be a perfect example of how you might want different mechanics for different subsystems in a game.  What I realized looking at the rules in Blackmoor is that much of the subject is seen through the lens of sieges and armies.  Which makes sense, descending from Chainmail, if you're fighting with massed forces it would be nice to have some rules for how disease would spread through the ranks and weaken those forces by attrition.

But those concerns are different from my concerns in dealing with an adventuring party.  I think you might need at least slightly different rules for the two situations.

Disease and Your Character
Let's think about how a disease affects pcs.  It can't be immediately fatal or it becomes identical to a poison.  Once contracted a lot of real diseases take about 12 days, almost two weeks, to fully manifest themselves.

What about symptoms?  Some fantasy diseases have odd symptoms, but with natural diseases catching it usually means you're weakened severely or bed-ridden.  So if we are going to have mechanics for diseases that are reminiscent of real diseases the character:

• contracts it or not
• for a few weeks is probably too weak to adventure
• might die if not cured in those weeks

While party travel might spread the disease to cities or troop concentrations leading to great repercussions to the campaign world, it looks like disease for a party is just a matter of "you're out of action until we get you cured." 

Does Disease Matter?
If a party is far from civilisation or help, this could lead to some dramatic tension, especially if the disease is spreading through the party.  But I think that would the rare case.  Cure disease is available to 5th level clerics in most old school rules systems (6th for Moldvay).  So, unless your campaign world has few of that level cleric around, disease becomes an minor inconvenience, a money sink.

Well, unless the possibility of the city being infected mentioned above, is the party's home base settlement.  That could cause drama, adventure hooks, and provide an even bigger money sink. So, is the only reason to mess with non-fantastic diseases at the party level to spread it to their base of operations?

Some diseases would allow for characters to be carriers (think Typhoid Mary) and this would make the likelihood of them spreading the disease to cities and troops much higher.  But on the other hand, it would make it much less likely for players to realize that they are, in fact, the spreaders of the pestilence.  And that would make it hard to engage the drama and hooks mentioned above if players don't feel responsible.

Scars and the Aftermath
Some diseases can leave permanent scars or effects (think small pox).  It is possible that a cure disease will save a players life without preventing these.  So disease might become more frightening if it could permanently reduce a character's charisma (as Blackmoor suggests), blind them, or leave some other mark.  But I have a hard time believing a holy person could lay on hands, curing a sickness and still leave these marks of the sickness.  Maybe.  I suppose it's how miraculous you conceive the divine magic in your campaign.

Thoughts?