Add CHOAM and Richese to the available factions before setup. Both use their common rules in Basic and Advanced play. Only powers marked Advanced require the Advanced Game.

Leader Skills and Advanced Stronghold Cards are independent optional modules. Choose either, both or neither, regardless of which factions play. Stronghold Cards require Advanced play.

Each faction has a shield, player sheet, player marker, five standard leader discs, 20 forces and two Alliance Cards. Richese also has No-Field tokens 0, 3 and 5. CHOAM has Inflation and the Advanced-only Auditor.

Add 11 Traitor Cards. Include the Auditor and its Traitor Card only in Advanced play; remove absent factions as usual. The optional decks contain 14 Leader Skills and 6 Stronghold Cards.

Learn your faction first. The later pages explain cache cards, replacement cards and the two optional modules.

Start with 5 spice and all 20 forces in reserves. Your free revival is 2 forces.

Keep the 10 Richese Treachery Cards in a separate cache, outside both the main deck and your hand. Keep the three No-Field tokens, numbered 0, 3 and 5.

Use the cache only when Richese plays. Do not shuffle all ten cards into the starting Treachery Deck. Cards enter hands through the cache auction or another explicit Richese power.

Each Bidding round, auction one card chosen from your cache instead of one normal auction card. Announce whether yours comes first or last, before Ixians use Bidding. Reveal the card for its cache auction.

Use Once Around or Silent Auction for the cache card, ignoring normal bidding order. The auction methods are explained next.

Other factions pay you. If you buy your own card, pay the Emperor, or the Spice Bank if the Emperor is absent. A normal Karama cannot buy or acquire a cache-auction card.

Discarded Richese cards go to the ordinary Treachery discard pile, not back to the cache. They may later enter the main deck through reshuffling. The discard pile is private. Search it only through a card or ability that permits it.

Choose a method before taking bids.

Choose clockwise or counterclockwise. Start with the adjacent faction on that side. Each eligible faction gets one opportunity to pass or place a higher bid.

When the opportunity reaches you, either outbid the current high bidder and buy the card, or let that bidder buy it. If everyone else passes, you may take the card free or remove it from the game.

A faction with a full hand cannot enter the auction. Harkonnen still gains its usual extra card after a purchase, if its hand has room.

Every faction able to bid secretly holds any amount of spice, including zero, in one hand. Reveal all bids simultaneously. The largest bid wins. Break ties in storm order.

If all bids are zero, you may take the card free or remove it from the game.

You may contribute to an ally's bid, including a Silent bid. The ally's own spice goes to you; your contribution goes to the Emperor or, if absent, the Bank. You must already have the contribution. Incoming spice cannot fund it.

If your cache card goes first, auction it before the Ixian Bidding advantage. If last, reveal and auction it after normal bidding.

Ixians draw one fewer normal card for each cache card and successfully sold Black Market card replacing a normal card this round. They still draw one extra, inspect all, return one to the deck and shuffle the rest.

Harkonnen receives its normal free extra card after buying either a cache card or a Black Market card, subject to its hand limit.

An Ixian ally may replace a Black Market purchase, even when the purchased card is Richese technology. It cannot replace a purchase from the separate cache auction.

Black Market sells a card already in your hand. The cache auction sells a card outside your hand.

Until revealed, the token counts as one force for all effects, including the 0 token. It moves as a force and collects spice as one force: normally 2, or 3 with ornithopters.

Only one No-Field may be on the planet at once. Never use the same numbered token twice consecutively, for yourself or an ally. Keep the last-used token face up in front of your shield until another is placed.

You may voluntarily reveal the token before the Battle Phase. Place its indicated number of forces from reserves, or all remaining reserves if fewer are available.

In a battle involving the token, reveal it with your Battle Plan and place the available reserve forces. You cannot dial more forces than you can actually reveal. Atreides may not ask to see your number dialed in that battle.

A storm or worm reveals the token and destroys the indicated forces, limited by those available in reserves. Revealing it does not create extra reserves.

A No-Field entering a territory with Moritani Terror can trigger it, even if the hidden number is 0. Revealing an already-present token is not another shipment or movement and does not trigger Terror again.

When CHOAM uses Trip to Gamont against your No-Field, reveal it. Return one revealed force to reserves if present. Trip to Gamont is used even if the token reveals no forces.

No-Field shipment triggers Heighliners. An allied shipment of Spacing Guild through your No-Field does not trigger it by itself, because Guild is the token's exception.

With Smuggler, you may bring its additional free force when shipping a No-Field into an empty territory.

Your alliance may use a No-Field shipment, with immediate revelation instead of a hidden token.

You may offer a No-Field shipment for an ally's forces from off-planet. Reveal any token already on the planet first. Use an available token, pay to ship one force, then immediately reveal the new token and place up to its number of the ally's available reserve forces.

Either you or your ally may pay. The cost is 1 spice to a stronghold or 2 elsewhere, paid to Guild or the Bank. Keep the used token face up to prevent consecutive reuse.

You may give your ally a Richese Treachery Card from your hand at any time, if their hand has room. This gives a card already in your hand, not one directly from the cache.

Richese occupation of Tuek's Sietch prevents the Fremen special victory, alongside Atreides, Harkonnen and Emperor. This restriction applies in both Basic and Advanced play.

Advanced only. At the start of Bidding, before Declaration, you may offer one Treachery Card from your hand. You may describe it truthfully or lie. Keep it hidden; Atreides may still inspect it.

Use normal bidding, Once Around or Silent Auction. Karama cannot acquire the card. If no one bids spice, keep it and end the intervention. If it sells, receive payment and reduce the normal auction supply by one.

With normal bidding, proceed in storm order and then resume where normal bidding left off. After Once Around or Silent Auction, resume in storm order. A card bought before Declaration counts in the buyer's declared hand.

Start with 2 spice and all 20 forces in reserves. You have no free revival, but may pay to revive any number of your forces for 1 spice each.

During CHOAM Charity, before anyone else collects, take 2 spice per faction in the game from the Spice Bank. Pay the other factions' ordinary Charity from your own spice.

Your special Charity income alone does not trigger Spice Production. That Tech Token is paid by the Bank, and Inflation does not change its income.

You can plan a two-turn change to Charity and turn spare cards into spice or named effects.

In the following Mentat Pause, flip it to the other side. That side affects the next turn. At the next Mentat Pause, remove the token from the game. It is not a new choice each turn.

No spice bribes may be made while Double is face up in play, including the interval after you place it. Ordinary permitted allied payments follow their own rules.

Tech Token income is unchanged. Extra Homeworld Charity comes from the Bank only when its faction actually qualifies for Charity; it does not raise the eligibility threshold.

Your hand limit is 5 Treachery Cards. At the end of any phase, reveal exact duplicates in your hand and discard the surplus copies for 3 spice each.

A Snooper, Shield Snooper and Portable Snooper are different cards, not duplicates. With two ordinary Snoopers, you may discard one surplus copy for 3 spice.

At phase end you may also discard any Worthless Card for 2 spice. It does not need a duplicate.

Instead of taking spice, discard a Worthless Card for its named effect when that effect applies. Reactive effects act when the movement, storm, revival or Karama is attempted. They cannot wait until phase end.

Each Worthless Card has a different CHOAM effect.

Once per turn, at the end of any phase, you and your ally may exchange one Treachery Card each. The trade must be two-way: each gives and receives a card.

In Advanced play, you may pay some or all of your ally's spice support in battle. That payment goes to the Spice Bank.

With Tleilaxu as ally, it may offer half-price revival for your total force-revival bill. Round up that total after halving. You pay the Tleilaxu; it cannot pay the bill for you.

If the Auditor survived, inspect 2 random cards from the opponent's hand, excluding cards it used in the battle. If the Auditor died, inspect 1. Inspect only as many as are actually available.

The opponent may pay you 1 spice per card you could actually inspect to cancel the whole audit. With only one inspectable card, 1 spice cancels it. Partial payment cannot merely reduce the number seen.

Revive the Auditor as your one leader revival for the turn, even when other leaders are alive. It cannot be captured, acquired as a Tleilaxu ghola, or assigned a Leader Skill. It always returns face up to the Tanks when killed.

Advanced only. When another faction pays spice for its forces in battle, take half that payment, rounded down. The rest goes to the Spice Bank. Your own support payments go to the Bank.

If any traitor is revealed in the battle, none of that support spice goes to you.

The cache has one copy of each of ten designs. They begin outside the main deck and hand. Once discarded, they join ordinary Treachery discards. The cache Karama is a separate member from the two main-deck Karama copies.

Replace the earlier Ixians & Tleilaxu copies. If that expansion is absent, add these two cards. Replace both core Karama copies with the updated versions.

Alternatively, pay for your own or another player's normal shipment from off-planet onto Arrakis at Guild rates. Pay the Spice Bank. This changes the payment; it does not grant another shipment.

Holding Karama lets you bid more spice than you have without revealing it. If outbid, keep it. Play it to take an eligible normal auction card free, with room in your hand. You may also play it on your bidding turn to take the card without further bids. This excludes cache and Black Market auctions.

In Advanced play, you may instead spend Karama for your faction's once-per-game Special Karama Power. Keep that use separate from ordinary Karama effects.

The base Treachery Deck has 33 cards. Ixians & Tleilaxu adds 14, making 47. CHOAM & Richese replaces existing Poison Tooth, Artillery Strike and two Karama copies when they are present. It does not add duplicates.

Without the first expansion's Treachery additions, add Poison Tooth and Artillery Strike to the base deck, making 35. With all three expansions' Treachery additions, the 3 Ecaz & Moritani cards bring 47 to 50.

Keep the ten-card Richese cache, fourteen-card Leader Skill Deck and six-card Stronghold Deck separate. The cache's Karama is one additional cache member, not a third starting main-deck copy.

If using Leader Skills, after faction positions and the Bene Gesserit prediction, deal starting Treachery Cards, including Ixian starting selection and the Harkonnen extra card. Then deal 2 Skill Cards per faction. Keep one and shuffle the other back.

Put the chosen card face up in front of your shield and assign one eligible leader disc beside it. Complete Traitor selection and the remaining setup afterward. The Auditor cannot receive a skill.

The assignment lasts for the leader's life. Its general effect works while the skilled leader and card are face up. Use a skill before the corresponding faction ability, such as Mentat before Atreides Prescience.

The next pages explain using the skill in battle and show all fourteen cards.

When selecting a battle leader, leave the skilled leader and card face up, or take both behind your shield. If you hide them but fight with a different leader, neither part of that skill is available.

When using the skilled leader, include its Skill Card in the Battle Plan. The general effect remains where applicable, and its battle effect applies unless the leader is killed. After battle, return a surviving skilled leader and card in front of the shield.

A skill naming a card type requires the card actually to be played as that type. Chemistry must be used as a poison weapon for a poison-weapon bonus. Zoal copies no Skill or Kwisatz Haderach bonus.

Mentat acts before Battle Plans. You may use its question and then take the skilled leader behind your shield to fight.

When the skilled leader dies, shuffle its card back into the Skill Deck. When you revive one of your own leaders while you have no Skill Card, you may draw 2, choose one for the revived leader and return the other.

Tleilaxu acquiring another faction's ghola does not receive this skill draw. Only reviving your own leader qualifies.

A captured leader takes its skill with it. Harkonnen may use only the leader's battle skill while it fights, including Mentat. They do not receive passive general effects such as Spice Banker's Bank-payment income.

For Tleilaxu, a card acquired through Rihani Decipherer is a Face Dancer and may replace only an unrevealed Face Dancer.

Smuggler can add a free force to a No-Field shipment into an empty territory. Spice Banker may trigger on a qualifying revival payment to the Bank.

Use these 6 cards only in Advanced play, if agreed before setup. No faction starts with a Stronghold Card, even when its starting forces occupy the location.

In the first Mentat Pause, and each later Mentat Pause, give each card to the sole occupant of its stronghold. Ignore Bene Gesserit advisors. If no faction controls it, set the card aside.

Keep a claimed card until the next Mentat Pause. Moving out, losing the stronghold or flipping to advisors does not transfer it immediately. The ownership check happens at Mentat Pause.

Each card applies to battles in its own stronghold. The Hidden Mobile Stronghold card can copy another controlled stronghold's advantage.

Prevent CHOAM's special Charity collection. It may still take ordinary Charity if it qualifies. Other factions' Charity is paid by the Bank for this use.

Prevent a discard for spice, or the relevant named Worthless Card effect in that phase. Karama stops the attempted use, not CHOAM's hand limit.

Prevent the revival advantage. CHOAM then revives at most 3 forces at 2 spice each, or up to 5 if Tleilaxu permits the raised limit.

Prevent placing Inflation during Mentat Pause. It does not stop the required flip on the following turn.

In Advanced, prevent support-spice income for one battle, or prevent one audit. Those are separate uses.

At the start of Bidding, prevent the cache auction. This does not let a Karama acquire that cache card.

Prevent the use of a No-Field token for shipment, including the allied No-Field shipment.

In Advanced, prevent the Black Market sale of a card from hand.

Alliance advantages can also be stopped for one use, such as the CHOAM two-way card trade or a Richese allied benefit. A normal Karama cannot cancel a Special Karama Power.

Keep ordinary cancellation separate from the factions' once-per-game powers.