Dune RPG

At its core, it’s about politics, power, ecology, and destiny set in the far future.

The Setting

The Universe: Thousands of years in the future, humans have spread across the galaxy and live under a feudal empire system.

The Spice Melange: The most valuable substance in the universe. Found only on the desert planet Arrakis (Dune).

Extends life.

Enhances mental abilities.

Allows safe space travel (navigators use spice to “see” routes).

Arrakis: Harsh desert world, full of giant sandworms and home to the native Fremen, who have adapted to survive in the desert.

The Main Story (Book 1: Dune)

House Atreides, led by Duke Leto Atreides, is given control of Arrakis by the Emperor.

It’s a trap the rival House Harkonnen and the Emperor want to destroy them.

Paul Atreides (the Duke’s son) survives betrayal and exile.

He joins the Fremen, learns their ways, and rises as a messianic figure because of prophecy and his growing powers.

Paul becomes Muad’Dib, leads a rebellion, and seizes control of Arrakis and the spice—making himself Emperor.

The Themes

Politics & Power: The struggle between noble houses, the Emperor, and secret organizations.

Religion & Prophecy: How belief can be shaped and manipulated for control.

Ecology: Arrakis’ desert environment, the sandworms, and how humans impact a fragile ecosystem.

Destiny vs Free Will: Paul’s visions of the future and whether he can escape them.

Key Groups

House Atreides: Noble, honorable family.

House Harkonnen: Cruel, corrupt rivals.

The Emperor: Jealous of Atreides’ popularity, secretly helps the Harkonnens.

The Fremen: Desert people of Arrakis, fierce warriors dreaming of making their world green.

Bene Gesserit: A secretive sisterhood with genetic-breeding programs and superhuman abilities.

The Spacing Guild: Controls interstellar travel, dependent on spice.

10,191 A.G: When House Atreides takes over arrakis but soon is betrayed by the harkonnens since the emperor set up an trap for house atreides, a plan to wipe them out since out of fear that Duke Leto's rising popularity and political influence within the Landsraad would lead to a challenge to the Imperial throne.

10,204 A.G. about 12 years later: Paul rules as Emperor but faces conspiracies from the Bene Gesserit, Spacing Guild, and others. His prescient visions show him trapped by destiny.

What a Stillsuit Is

A stillsuit is a full-body suit worn by the people of Arrakis (especially the Fremen) to survive the desert heat and conserve water. On Arrakis, water is more precious than gold—so much so that a single drop of sweat or spit has value. The suit keeps you alive in conditions that would otherwise kill a person in hours.

How It Works

The suit is a closed system designed to recycle the body’s moisture:

Sweat & breath moisture → captured and filtered.

Urine & feces → processed into drinkable water (yes, it’s gross, but essential).

Cooling system → prevents overheating under the desert sun.

Catchpockets & tubes → store the reclaimed water for drinking through a tube at the neck.

With a properly fitted and maintained stillsuit, a person can survive for weeks in the desert with almost no external water.

Design Features

Nose plugs & face mask: capture moisture from breath.

Boot pumps: powered by walking, they drive the filtration system.

Body-hugging fabric: prevents sweat from evaporating.

Drink tube: lets the wearer sip reclaimed water without removing the mask.

Cultural Meaning

For the Fremen, the stillsuit isn’t just gear—it’s part of their identity and survival culture:

Wearing it correctly shows respect for the desert.

Improper fitting (like when Paul and Jessica first arrive) marks you as inexperienced.

Fremen children learn how to maintain them from a young age.

In both Dune films and earlier adaptations, stillsuits are shown as rugged, almost armor-like outfits with tubing and masks—matching Herbert’s description of something both practical and symbolic.

The Major Houses in Dune

House Atreides

Homeworld: Caladan (lush, oceanic planet).

Leader (in Dune): Duke Leto Atreides.

Traits: Honor, loyalty, compassion, and popularity among common people.

Symbol: The red hawk.

Role: Heroes of the story. They’re given control of Arrakis (the desert planet) as part of the Emperor’s trap.

Fate: Betrayed by the Emperor and House Harkonnen, but Paul Atreides rises to lead the Fremen and seize power.

House Harkonnen

Homeworld: Giedi Prime (industrial, polluted, brutal).

Leader (in Dune): Baron Vladimir Harkonnen.

Traits: Cruelty, greed, decadence, and corruption.

Symbol: The griffin.

Role: Main villains in the first book. They ruled Arrakis before the Atreides and want it back for the spice.

Fate: Paul and the Fremen overthrow them.

House Corrino

Homeworld: Salusa Secundus (harsh prison planet, training ground for Sardaukar troops).

Leader (in Dune): Emperor Shaddam IV.

Traits: Authoritarian, politically calculating, obsessed with maintaining imperial dominance.

Symbol: The lion.

Role: The ruling dynasty of the Imperium. They secretly ally with the Harkonnens to destroy House Atreides.

Fate: Paul defeats Shaddam IV and marries his daughter, Princess Irulan, becoming Emperor himself.

Other Notable Houses

These aren’t as central in the first book but matter in the larger Dune universe:

House Vernius (Ix): From the planet Ix, known for advanced machines and technology.

House Richese: Another technologically skilled house, rivals of Ix.

Minor Houses: Countless smaller noble families that make up the Landsraad and play politics to gain favor, wealth, and protection.

The Balance of Power

The Imperium is kept stable (barely) by three main forces:

The Emperor (House Corrino) → has Sardaukar, the most feared soldiers.

The Landsraad (the Houses) → political bloc that can unite to check the Emperor’s power.

The Spacing Guild → controls interstellar travel, making them essential to everyone.

This three-way balance is called the “Tripod of Power”, and Arrakis—the only source of spice melange—is the key that tips the balance.

The Crysknife

Material: Made from the tooth of a sandworm (Shai-Hulud).

Two types:

Fixed Crysknife → permanently hardened, doesn’t decay.

Unfixed Crysknife → must stay near the body’s electric field; if left too long, it disintegrates.

Appearance: Curved, about 20 centimeters long, razor-sharp, milky white in color.

Ritual Significance:

Each Fremen carries one as a symbol of adulthood and honor.

What Shields Are

Known as Holtzman shields, based on the fictional “Holtzman effect.”

They create a protective energy field around a person, building, or vehicle.

Standard issue for nobles and soldiers, especially off Arrakis (Fremen avoid them—more on that soon).

How They Work

Blocks fast-moving objects:

Bullets, darts, and most projectiles bounce off.

A sword swung quickly won’t penetrate.

Slow things get through:

A slow knife thrust or blade pushed gradually can slip past the shield.

This is why combat in Dune focuses on knife duels, careful swordplay, and close-quarters fighting instead of guns.

Energy interaction:

If a lasgun beam hits a shield, it causes a catastrophic nuclear-like explosion that can wipe out armies.

This makes lasguns and shields together extremely dangerous.

Impact on Warfare

Revives melee combat: Despite being in the far future, soldiers rely on swords, daggers, and knives.

Assassins’ tools evolve: Poison darts, slow blades, and hunter-seekers are more useful than guns.

Battlefield tactics: Large armies with shields are vulnerable if someone recklessly fires a lasgun at them.

Why Fremen Don’t Use Shields

Sandworm attraction: The vibration of a shield drives worms into a frenzy, drawing them straight to the source.

Stealth warfare: Fremen rely on speed, silence, and surprise—shields would expose them immediately.

Survival: Shields are useless against the biggest threat on Arrakis: the desert itself and its worms.

Cultural Meaning

Nobles see shields as a sign of status and military strength.

Swordmasters (like Duncan Idaho and Gurney Halleck) train in special slow-blade techniques to fight shielded opponents.

To the Fremen, shields symbolize ignorance of the desert, something only off-worlders would depend on.

Drawing it in the presence of another means blood must be shed before it’s returned to its sheath.

It’s used in duels (Tahaddi-challenge), in warfare, and even in religious ceremonies.

Symbolism

Represents the bond between the Fremen and the sandworms.

What They Are

Called Shai-Hulud by the Fremen (with deep religious reverence).

Enormous creatures—ranging from hundreds of meters long to over 400 meters (1,300 ft) in the largest ones.

They live under the sands of Arrakis, constantly moving, attracted to rhythmic vibrations (like footsteps, machinery, or battles).

They are both feared predators and the source of the spice melange.

Life Cycle

The sandworms have a strange ecological cycle:

Sandtrout (larval form): Leathery creatures that encase water, preventing surface lakes and rivers. They create the desert.

Sandworm: Fully grown Shai-Hulud, ruler of the desert.

Spice Creation: When water mixes with sandtrout excretions deep underground, it produces pre-spice mass. When it erupts to the surface, it releases gas and leaves behind melange (spice).

Without sandworms, there is no spice, and without spice, there is no galactic empire.

Sandworms as Weapons & Allies

Deadly predators: They swallow entire spice harvesters and armies.

Fremen “Wormriding”:

Using maker hooks, Fremen can open a worm’s segments, forcing it to rotate so they can climb on its back.

Once mounted, the worm can be steered across the desert like a living war machine.

This makes the Fremen nearly unstoppable in desert combat.

a harsh, desert world with vast sand dunes, rocky mountains, and extreme temperatures.