Running the Game

Dyrhal is not a stage built for heroes. It is a hard land of thin harvests, old stone, and older grudges — a place where men sharpen axes because they must, not because it is glorious. Steel Age runs best when the world feels real, danger feels earned, and every choice carries a cost the players can see coming.

This chapter is not a speech about how to be a good GM. It is a set of tools for running Steel Age specifically — how to frame decisions, how to apply pressure without cruelty, and how to keep the fiction moving at the pace the game demands.

The Role of the GM

You are the keeper of the world — not its author, not its victor. Its keeper. Your role has three duties:

You also hold the table’s pace: when to zoom in (combat, risk, negotiation at the knife-edge), and when to zoom out (travel, routine work, safe downtime).

Adjudication Principles

Steel Age is at its best when everyone understands what is happening, what is being risked, and what the roll will decide. Use these principles as your backbone.

Speak the Situation. Ask for Intent.

Start with what is real in the fiction — then ask what the player wants. Once you know intent, method becomes clear.

If Failure Isn’t Meaningful, Don’t Roll.

Rolling is for uncertainty with consequences. If success is obvious and failure would only waste time, let it happen. No roll is not “free” — it is simply uninteresting to test.

State the Stakes Before the Roll.

A roll without stakes is gambling with confusion. Tell the player what success gets them and what failure costs them. Keep it concrete.

Let Results Change the Situation.

After the roll, something should be different: the door is open, the patrol is alerted, the group is separated, a bargain is struck, fatigue builds, a resource is spent, or time is lost. If nothing changes, the roll did not matter.

Be Consistent, Not Symmetrical.

The world is not balanced. A starving peasant and a mailed Thane are not equal. But the world is consistent: the same causes produce the same effects. Consistency is what makes players trust you.

Encounter Design & Pressure

An encounter is any scene that forces a meaningful decision under risk. Combat is only one kind. A good Steel Age encounter has three parts: a clear situation (what’s true right now), a pressure (what makes waiting or dithering costly), and a consequence (what failure or delay will change). If you have those, you have an encounter.

Encounters Are Objectives, Not Slaughter

Most fights in Dyrhal are decided by purpose. Kill is sometimes the method, rarely the goal. Common encounter goals: Escape (leave with what you came for) · Delay (hold a bridge, stall a pursuit) · Seize (a banner, a hostage, a key, a wagon) · Rescue (extract a prisoner, recover a fallen comrade) · Survive contact (endure until dawn or reinforcements) · Force terms (make the other side bargain or yield ground). Make the goal explicit in prep — even if the players discover it mid-scene.

The Steel Age “Danger Knobs”

When you want an encounter to feel sharper, turn these — and when in doubt, don’t add more rules: add pressure.

• Numbers and angles — More bodies means more engagement threats, more fatigue, more mistakes.
• Reach mismatch — Spears and polearms control space. Short weapons suffer unless they can close or flank.
• Fatigue spiral — Steel Age punishes prolonged struggle. The longer it goes, the more the downward slope shows.
• Morale and shock — Groups break. Leaders fall. Panic spreads. Morale is often the true end of a battle.
• Terrain and visibility — Mud, snow, narrow halls, steep slopes, torchlight, fog — these define who can move, who can see, and who can commit.
• Time pressure — Patrol cycles. Reinforcements. Dawn. A rising river. A wound that won’t stop bleeding.

Quick Encounter Templates

Use these as starting shapes.

Optional GM Tool: Mooks

Use mooks for weak or low-importance opponents whose danger comes from numbers, pressure, and board presence rather than individual attrition. Good uses: rabble, levy troops, weak undead, tunnel vermin, frightened retainers. Do not use mooks for elites, named foes, or monsters meant to anchor a scene.

Challenge & Stakes Toolkit

A GM’s greatest power isn’t a monster. It’s deciding what is uncertain, and what failure means. Resolve actions using the simplest tool that fits.

Choose Your Resolution Mode

The Challenge Mark Scale (CM)

The acting character must exceed the CM. Ties favor the world. Start at CM 8, then adjust for tools, time, position, light, weather, and help.

Set the Stakes Before the Roll

Always tell the player what the roll decides: Success = what you get · Failure = what you lose or what changes against you. Failure does not need to mean “no.” In Steel Age, failure is often yes, but…

A Cost Menu for Meaningful Failure

Quick Guidance for Defense Scores

Defense Score = Base Score + Attribute Modifier + Skill Modifier (if applicable)

• 6 — Favorable (darkness, heavy cover, distracted or intoxicated target)
• 8 — Neutral (typical conditions, alert but not suspicious)
• 10 — Unfavorable (bright light, open ground, suspicious or actively alert)

Acting character must exceed the Defense Score. Ties favor the defender.

Environmental Challenges & Clocks

Dyrhal is a weapon. Use it. Environmental pressure should limit information, restrict movement, drain time, raise fatigue, or create hard choices.

Visibility and Light

Light is not flavor. It determines what can be attempted. Use the same visibility tiers defined in Chapter VII:

• Clear: no special penalties; distant movement can be read.
• Low: details are uncertain; stealth and surprise become sharper.
• Poor: only silhouettes and motion are clear; ambush becomes common.
• None: characters cannot see without light.

When light is poor, you don’t need a dozen modifiers. Raise the Challenge Mark, raise the Base Score in defended checks, impose a situational penalty when it matters, or change what information players receive.

Terrain

Terrain shapes who can create engagement, who can keep control, and how hard it is to earn space under pressure (see Chapter IV: Combat). Use it to set CMs and justify situational modifiers.

Weather

Weather is time pressure you can see coming.

Crowds and Chaos

Markets, festivals, refugee columns, war camps — crowds hide movement, blur identity, and make violence consequential. Pressure options: witnesses · guards within moments · stampede risk · reputation loss · separation.

Pressure Clocks (Use Them Often)

A pressure clock is simply: In X time, Y happens. Announce clocks openly. Dyrhal is cruel enough without hidden timers.

Worked Examples

Each of these shows the same rhythm: situation → mode → stakes → resolution.

Rulings and Consistency

Even a clean ruleset cannot cover every edge case. Steel Age expects you to make rulings. The goal is not to be right. The goal is to be steady.

Make the Call. Write It Down.

When something isn’t covered: pick the nearest existing mechanic, set stakes, roll if needed, and move on. Then write one sentence in your GM notes: “We ruled X as Y.” If it comes up again, you already have an answer.

A Simple Hierarchy for Rulings

When you’re unsure, follow this order:

• The written rule.
• Specific beats general.
• Table precedent (what you already ruled before).
• Fictional truth (what makes sense in-world).
• GM ruling (choose and keep it).

When to Revise a Ruling

You can change a ruling — but do it between sessions. Revise when it obviously breaks balance, creates a loophole that will warp play, or contradicts a core procedure. When you revise, say it plainly at the start of the next session:

Milestones

Steel Age does not count experience points. It counts chapters.

A milestone is the moment when a chapter of play closes — when the party has done enough that the world around them is genuinely different from how it was. When that moment arrives, the GM calls it, and every character gains a milestone.

The rule in Chapter III: Character Growth, Skills and Paths handles what a milestone grants. This section tells you when to call it.

What Earns a Milestone

A milestone is earned when the party completes a meaningful objective — not a task, but a resolution. A task is something you do. A resolution is something that changes the situation.

The milestone does not require success. Dyrhal does not demand clean victories. A party that reached the bridge, held it long enough, and got two of their five people out alive has closed a chapter. Call it.

Principles

One milestone per chapter, not per session. Declare after, not during — let the moment land in fiction before calling it. Objectives should be visible before play begins; players can only complete what they understand. Not every session ends with a milestone — they carry weight because they are not given freely.

Session Zero Expectations

A grim world can be played many ways. Some tables want desperate survival. Others want grim heroism. Some want politics and bargaining more than blood. Steel Age supports them all — but only if everyone is steering toward the same kind of darkness. Before the campaign begins, take ten minutes to settle expectations. It saves hours later.

Session Zero Checklist

• Lethality: Is retreat expected? How often do you want deaths to occur?
• Injury & Consequence: Are you leaning toward scarred survivors or frequent replacements?
• Player vs Player: Allowed, limited, or off the table?
• Tone: Harsh realism, mythic dread, warband brutality, court intrigue?
• Logistics: How strict are travel, supplies, and rest?
• Campaign Scope: A wandering band, a single barony, a war on the frontier?

The Core Procedure of Play

When you’re unsure what to do next, return to this loop. It is the spine of Steel Age.

In Dyrhal, nothing is free. Not victory. Not mercy. Not even survival. But when the world is run with a steady hand, the players will believe in it — and belief is what turns a set of rules into a campaign people remember.

Campaign Seeds

These seeds are starting points — each one is a situation with pressure already in it. Flesh out the details to fit your barony, your players, and the tone your table has chosen.