The Ruling Is the Rule
Most table arguments are not about what the rules say. They are about what the referee will decide when the rules go quiet. Shadowdark is a lean game, and lean games leave gaps on purpose. That is not sloppiness. It is an invitation for the person running the table to make a clear call and hold to it. The problem starts when the call is different every time, because then the players stop trusting the ruling and start negotiating it. Three related systems show exactly where this rot sets in, and how to stop it.
Start with Encumbrance and Gear Slots, because it is the most measurable. A character has gear slots equal to their Strength score, with a minimum of 10, and each item takes 1 slot unless the entry says otherwise. Go over your slots and you take disadvantage on physical checks. This is a table call, and the recommended handling is blunt: decide intent, then resolve with one clear call. The trap is not the math. It is the accountant impulse to relitigate the pack list mid-scene. If you rule at the moment gear is picked up, the disadvantage either applies or it does not, and the game keeps moving. Clear rulings now save argument time later.
That disadvantage does not live in a vacuum, which brings in Advantage and Disadvantage. The devil is in the details, and the details are timing. Picture the tight spot: the rogue is about to stab the ogre while the bard tries to charm it. You call for the stab. Did the bard’s spell resolve first and hand the rogue Advantage, or did it not? Without a settled order of operations, that single roll turns into ten minutes of cross-table lawyering. This is the same disease as the overstuffed backpack. An overencumbered rogue carries disadvantage into that stab, and if a party effect grants Advantage in the same instant, you need to know which the referee reads first. Decisions made now save headaches later. Pick a rule: sources apply in the order they were declared, or all conditions are checked before the die leaves the hand. Either works. Inconsistency does not.
The stakes climb when the roll fails and someone hits zero hit points. The Death Timer dictates the order of effects at that moment, and it is misapplied more than any other piece of the game. Players reach for a healing potion or call for a death saving throw and are not sure which one the moment allows, so they hesitate, and hesitation at zero hit points is expensive. The fix is the same discipline you used on the other two. Establish a clear sequence for resolving the Death Timer and stick to it. When does healing interrupt the count? When is a save rolled? Write the order down once. The table needs to know it before the crisis, not during it, because a character bleeding out is the worst possible time to open a debate.
Notice the through-line. Encumbrance and Gear Slots, Advantage and Disadvantage, and the Death Timer are three different subsystems, but they fail for one reason: the referee resolved them differently on Tuesday than on Thursday. Shadowdark hands you authority precisely so these do not drag. Groups running current material, whether the published quests circulating this month or something like the demon cyst hook from Shots in the Dark, will hit all three inside a single session. The forbidden magic in the cliffside does not care whether your rulings are consistent. Your players do.
Running it: Before the session, write your resolution order for these three on an index card, show it to the table, and refuse to change it mid-scene.