diff --git a/docs/CURRENT_STATUS.md b/docs/CURRENT_STATUS.md
index 5c953cae..a0547c8e 100644
--- a/docs/CURRENT_STATUS.md
+++ b/docs/CURRENT_STATUS.md
@@ -120,7 +120,7 @@ bulk actions and backup/operations tools remain unfinished.
 
 [Participant AI](ADMIN_PARTICIPANT_AI.md) checkpoint `2cddf03` is pushed. Types/lint,
 
-The latest [complete-game integration samples](IMPLEMENTATION_STATUS.md)
+Earlier [complete-game integration samples](IMPLEMENTATION_STATUS.md)
 finished 62 genuine games: Basic Leader Skills with Tleilaxu, Moritani,
 Ixians or CHOAM; Basic/Advanced classic Homeworld + Nexus; all three paired
 faction-expansion + Nexus profiles across two through six seats; and two
@@ -128,6 +128,13 @@ six-seat all-expansion games. All 29,333 actions were accepted, with 765
 JSON/private-view restorations and unchanged source fingerprints. Rare effects
 not encountered naturally and all public release gates remain unverified.
 
+Four further [all-expansion Nexus samples](IMPLEMENTATION_STATUS.md)
+completed genuine five/six-seat Basic and Advanced games: 4,098 accepted
+actions, 109 JSON/private-view restorations, unchanged source fingerprints
+and five Nexus Card draw/keep decisions in the five-seat games. No Nexus
+effect was played in those samples; card-specific combinations and public
+expansion/Nexus starts remain gated.
+
 The bounded [native Richese Nexus Cunning shipment](NEXUS_RICHESE_RULES.md#bounded-native-cunning-prototype-27-september-2026) now uses two distinct physical No-Field tokens in one priced shipment in genuine Richese/CHOAM paired Nexus games. One token immediately reveals a reserve-capped public force group; the other remains concealed. Owner-only controls, four legal AI profiles, Karama/Guild responses, signed saved receipts and concurrent in-memory SQLite settlement are connected in Basic/Advanced. A read-only local browser fixture displayed the owner selector and no rival private panel. Same-shipment nonrepeat is a documented product interpretation; faceup-component artwork, combined modules, Betrayal and full Nexus acceptance remain gated. This code is local and not in the last verified production image.
 
 The independent [Reinforcements Battle Plan prototype](REINFORCEMENTS_RUNTIME.md)
diff --git a/docs/IMPLEMENTATION_STATUS.md b/docs/IMPLEMENTATION_STATUS.md
index ba6ac51b..aaf116b8 100644
--- a/docs/IMPLEMENTATION_STATUS.md
+++ b/docs/IMPLEMENTATION_STATUS.md
@@ -1,5 +1,21 @@
 # Dune implementation status
 
+## 28 September 2026 — five/six-seat all-expansion Nexus integration samples
+
+The offline-only `combined-nexus` audit setup selects all three physical
+expansions and Nexus Cards for five seats (Ixians, Tleilaxu, CHOAM, Ecaz,
+Moritani) or six (plus Richese). Basic and Advanced samples for each roster
+completed with 4,098 accepted actions, zero rejected bot actions and 109
+JSON/private-view restores. The five-seat tables reached five real Nexus Card
+draw/keep decisions; the six-seat tables formed alliances but did not draw
+cards. The report at `/tmp/dune-all-expansion-nexus-matrix-final/report.json`
+records `status: passed` and unchanged source. A separate intentionally
+capped ten-action five-seat save resumed to a turn-nine win with 1,380 accepted
+actions, 37 more restores and zero rejected actions. The resumed random stream
+restarts, so its outcome need not match an uninterrupted game. No card effect
+happened in these samples, so they do not establish individual card correctness,
+complete cross-expansion behavior or permission to open public starts.
+
 ## 28 September 2026 — owner-only operational counts
 
 `/admin/operations` now samples the build revision and live database aggregates:
diff --git a/docs/VERIFICATION_WORKFLOW.md b/docs/VERIFICATION_WORKFLOW.md
index 1fcd48e7..13057dcc 100644
--- a/docs/VERIFICATION_WORKFLOW.md
+++ b/docs/VERIFICATION_WORKFLOW.md
@@ -114,6 +114,7 @@ node --import tsx tools/faction-games.ts --out /tmp/dune-new-ix-roster --profile
 node --import tsx tools/faction-games.ts --out /tmp/dune-new-choam-nexus --profile choam-nexus
 node --import tsx tools/faction-games.ts --out /tmp/dune-new-ecaz-nexus --profile ecaz-nexus
 node --import tsx tools/faction-games.ts --out /tmp/dune-new-ix-nexus --profile ix-nexus
+node --import tsx tools/faction-games.ts --out /tmp/dune-new-combined-nexus --profile combined-nexus
 node --import tsx tools/faction-games.ts --out /tmp/dune-new-nexus-three --profile nexus --players 3 --rules advanced
 node --import tsx tools/faction-games.ts --out /tmp/dune-new-resume --resume /private/failed-combined-advanced.json
 ```
@@ -122,8 +123,9 @@ Default and `--profile all` retain the original six fixed CHOAM/Richese,
 Ecaz/Moritani and combined Basic/Advanced samples. `--profile base` selects ten
 additional samples: Basic and Advanced with two through six players.
 `--players 2..6` narrows the base, Homeworld, Nexus, combined
-`homeworld-nexus`, `choam-roster`, `ecaz-roster`, `ix-roster`, `choam-nexus`,
-`ecaz-nexus` or `ix-nexus` profile; omission or `all` retains all five counts. The fixed
+`homeworld-nexus`, expansion-roster or paired-Nexus profiles. The
+`combined-nexus` profile supports `--players 5` or `6` only. Omission or `all`
+retains every roster in a selected profile. The fixed
 base roster adds Atreides, Harkonnen, Fremen, Emperor, Guild and Bene Gesserit
 in that order. These are sample rosters, not the only rules-permitted
 player-count configurations. Each optional module profile runs two through
@@ -134,13 +136,17 @@ Richese, Ecaz/Moritani with Moritani then Ecaz, Ixian/Tleilaxu with Ixians
 then Tleilaxu. Subsequent seats extend each to six without changing existing
 fixed four-seat samples. Their seed offsets are 68–77, 78–87 and 88–97.
 `choam-nexus`, `ecaz-nexus` and `ix-nexus` reuse the respective expansion
-rosters with Nexus Cards enabled at seed offsets 98–107, 108–117 and 118–127,
-respectively. The original six default samples are unchanged.
-Output names include the player count. Homeworld's original four-seat seed
-offsets remain 36–37; its other rosters use 48–51 and 54–57. Nexus's six-seat
-offsets remain 38–39; its smaller rosters use 40–47. The combined module uses
-offsets 58–67. These samples do not open public module or expansion starts or
-assert complete interaction coverage.
+rosters with Nexus Cards enabled at seed offsets 98–107, 108–117 and 118–127.
+`combined-nexus` selects five or six actual expansion factions and all three
+expansion decks with Nexus Cards in Basic and Advanced. Five seats leave Richese
+absent so a player can remain unallied and draw; six seats contain every expansion
+faction. Their seed offsets are 130–131 and 128–129 respectively. The original
+six default samples are unchanged. Output names include the player count.
+Homeworld's original four-seat seed offsets remain 36–37; its other rosters
+use 48–51 and 54–57. Nexus's six-seat offsets remain 38–39; its smaller
+rosters use 40–47. The combined module uses offsets 58–67. These samples
+do not open public module or expansion starts or assert complete interaction
+coverage.
 
 All-AI Nexus samples now make public reciprocal offers as well as accepting
 them, so an actual alliance can form without a human proposer. At the
diff --git a/game/engine.ts b/game/engine.ts
index 30e0da36..100fe488 100644
--- a/game/engine.ts
+++ b/game/engine.ts
@@ -6716,6 +6716,22 @@ export function initializePairedNexusGameForAudit(state: Game): Game {
   return initializeSetupGameForAudit(state, false, true, false, false, false, false, true);
 }
 
+/** Offline-only all-expansion Nexus composition; not a public start gate. */
+export function initializeCombinedNexusGameForAudit(state: Game): Game {
+  requireRule(state.expansions.length === 3 &&
+    ['ix', 'choam', 'ecaz'].every(expansion => state.expansions.includes(expansion)) &&
+    [5, 6].includes(state.players.length) &&
+    state.players.every(player => ['ixians', 'tleilaxu', 'choam', 'richese', 'ecaz', 'moritani'].includes(player.faction)) &&
+    ['ixians', 'tleilaxu', 'choam', 'ecaz', 'moritani']
+      .every(faction => state.players.some(player => player.faction === faction)),
+    'The combined Nexus sample requires five or six expansion factions and their three decks.');
+  requireRule(!!state.nexusCards && state.nexusCards.cards === null && state.nexusCards.phase === null &&
+    !state.homeworlds && !state.leaderSkills && !state.discoveryEnabled &&
+    !state.ecazTreachery && !state.techTokens && !state.strongholdCards,
+    'Enable only Nexus Cards in a fresh combined expansion lobby.');
+  return initializeSetupGameForAudit(state, false, true, false, false, false, false, true);
+}
+
 /** Offline prototype entry through real Ix setup, including both expansion factions.
  * No player action or room API bypasses the normal release gates. */
 export function initializeIxGameForAudit(state: Game): Game {
diff --git a/tools/faction-games.ts b/tools/faction-games.ts
index 68e236af..76c008d1 100644
--- a/tools/faction-games.ts
+++ b/tools/faction-games.ts
@@ -14,6 +14,7 @@ import {
   initializeHomeworldGameForAudit,
   initializeNexusGameForAudit,
   initializePairedNexusGameForAudit,
+  initializeCombinedNexusGameForAudit,
   initializeLeaderSkillsGameForAudit,
   joinGame,
   newPlayer,
@@ -29,7 +30,7 @@ import { privateOutputDirectory, sourceSnapshot } from './verification';
 const DEFAULT_SEED = 20_260_926;
 const DEFAULT_MAX_ACTIONS = 3_500;
 const DIFFICULTIES = ['Easy', 'Medium', 'Hard', 'Brutal'] as const;
-type Profile = 'base' | 'choam' | 'ecaz' | 'combined' | 'homeworld' | 'nexus' | 'homeworld-nexus' | 'choam-roster' | 'ecaz-roster' | 'ix-roster' | 'choam-nexus' | 'ecaz-nexus' | 'ix-nexus' | 'moritani-skills' | 'tleilaxu-skills' | 'ix-skills' | 'choam-skills';
+type Profile = 'base' | 'choam' | 'ecaz' | 'combined' | 'combined-nexus' | 'homeworld' | 'nexus' | 'homeworld-nexus' | 'choam-roster' | 'ecaz-roster' | 'ix-roster' | 'choam-nexus' | 'ecaz-nexus' | 'ix-nexus' | 'moritani-skills' | 'tleilaxu-skills' | 'ix-skills' | 'choam-skills';
 type Rules = 'basic' | 'advanced';
 
 type Scenario = {
@@ -150,7 +151,15 @@ const PAIRED_NEXUS_SCENARIOS: readonly Scenario[] = EXPANSION_ROSTER_SCENARIOS
     profile: scenario.profile.replace('-roster', '-nexus') as Profile,
     ordinal: scenario.ordinal + 30,
   }));
-
+const COMBINED_NEXUS_SCENARIOS: readonly Scenario[] = [
+  ...SCENARIOS.filter(scenario => scenario.profile === 'combined')
+    .map(scenario => ({ ...scenario, profile: 'combined-nexus' as const, ordinal: scenario.ordinal + 124 })),
+  ...(['basic', 'advanced'] as const).map((rules, index) => ({
+    ordinal: 130 + index, profile: 'combined-nexus' as const, rules,
+    expansions: ['ix', 'choam', 'ecaz'],
+    roster: ['ecaz', 'ixians', 'tleilaxu', 'choam', 'moritani'] as FactionId[],
+  })),
+];
 
 const MORITANI_SKILLS_ROSTER: readonly FactionId[] = [
   'moritani', 'emperor', 'guild', 'harkonnen', 'fremen', 'beneGesserit',
@@ -222,10 +231,10 @@ type Result = {
 function usage() {
   return (
     'Usage: node --import tsx tools/faction-games.ts --out NEW_PRIVATE_DIR ' +
-    '[--seed UINT32] [--profile all|base|choam|ecaz|combined|homeworld|nexus|homeworld-nexus|choam-roster|ecaz-roster|ix-roster|choam-nexus|ecaz-nexus|ix-nexus|moritani-skills|tleilaxu-skills|ix-skills|choam-skills] ' +
+    '[--seed UINT32] [--profile all|base|choam|ecaz|combined|combined-nexus|homeworld|nexus|homeworld-nexus|choam-roster|ecaz-roster|ix-roster|choam-nexus|ecaz-nexus|ix-nexus|moritani-skills|tleilaxu-skills|ix-skills|choam-skills] ' +
     '[--rules both|basic|advanced] [--players all|2|3|4|5|6] [--max-actions POSITIVE] ' +
     '[--resume FAILED_GAME.json]\n' +
-    'Runs genuine setup and gameplay offline. Default/all keeps the six expansion samples; base, Homeworld, Nexus, combined Homeworld-Nexus, expansion roster, paired expansion Nexus and skill profiles default to their 2–6-player samples. --players requires one of these profiles. Output must be a new private directory outside the checkout.'
+    'Runs genuine setup and gameplay offline. Default/all keeps the six expansion samples; combined-nexus adds five/six-seat Basic/Advanced all-expansion Nexus samples. Base, Homeworld, Nexus, Homeworld-Nexus, expansion roster, paired expansion Nexus and skill profiles default to their 2–6-player samples. --players requires a supported profile. Output must be a new private directory outside the checkout.'
   );
 }
 
@@ -256,7 +265,7 @@ function positive(value: string | undefined) {
 }
 
 function scenarioName(scenario: Scenario) {
-  return scenario.profile === 'base' || scenario.profile === 'homeworld' || scenario.profile === 'nexus' || scenario.profile === 'homeworld-nexus' ||
+  return scenario.profile === 'base' || scenario.profile === 'homeworld' || scenario.profile === 'nexus' || scenario.profile === 'homeworld-nexus' || scenario.profile === 'combined-nexus' ||
     scenario.profile === 'choam-roster' || scenario.profile === 'ecaz-roster' || scenario.profile === 'ix-roster' || scenario.profile === 'choam-nexus' || scenario.profile === 'ecaz-nexus' || scenario.profile === 'ix-nexus' || skillProfile(scenario.profile)
     ? `${scenario.profile}-${scenario.roster.length}-${scenario.rules}`
     : `${scenario.profile}-${scenario.rules}`;
@@ -264,8 +273,8 @@ function scenarioName(scenario: Scenario) {
 
 function parseProfile(value: string | undefined) {
   const profile = value ?? 'all';
-  if (!['all', 'base', 'choam', 'ecaz', 'combined', 'homeworld', 'nexus', 'homeworld-nexus', 'choam-roster', 'ecaz-roster', 'ix-roster', 'choam-nexus', 'ecaz-nexus', 'ix-nexus', 'moritani-skills', 'tleilaxu-skills', 'ix-skills', 'choam-skills'].includes(profile))
-    throw new Error('--profile must be all, base, choam, ecaz, combined, homeworld, nexus, homeworld-nexus, choam-roster, ecaz-roster, ix-roster, choam-nexus, ecaz-nexus, ix-nexus, moritani-skills, tleilaxu-skills, ix-skills or choam-skills.');
+  if (!['all', 'base', 'choam', 'ecaz', 'combined', 'combined-nexus', 'homeworld', 'nexus', 'homeworld-nexus', 'choam-roster', 'ecaz-roster', 'ix-roster', 'choam-nexus', 'ecaz-nexus', 'ix-nexus', 'moritani-skills', 'tleilaxu-skills', 'ix-skills', 'choam-skills'].includes(profile))
+    throw new Error('--profile must be all, base, choam, ecaz, combined, combined-nexus, homeworld, nexus, homeworld-nexus, choam-roster, ecaz-roster, ix-roster, choam-nexus, ecaz-nexus, ix-nexus, moritani-skills, tleilaxu-skills, ix-skills or choam-skills.');
   return profile as Profile | 'all';
 }
 
@@ -311,8 +320,10 @@ function freshGame(scenario: Scenario) {
   }
   if (scenario.profile === 'homeworld' || scenario.profile === 'homeworld-nexus')
     game.homeworlds = { custody: null };
-  if (scenario.profile === 'nexus' || scenario.profile === 'homeworld-nexus' || scenario.profile === 'choam-nexus' || scenario.profile === 'ecaz-nexus' || scenario.profile === 'ix-nexus')
+  if (scenario.profile === 'nexus' || scenario.profile === 'homeworld-nexus' || scenario.profile === 'choam-nexus' || scenario.profile === 'ecaz-nexus' || scenario.profile === 'ix-nexus' || scenario.profile === 'combined-nexus')
     game.nexusCards = { cards: null, phase: null };
+  if (scenario.profile === 'combined-nexus')
+    return initializeCombinedNexusGameForAudit(game);
   if (scenario.profile === 'choam-nexus' || scenario.profile === 'ecaz-nexus' || scenario.profile === 'ix-nexus')
     return initializePairedNexusGameForAudit(game);
   return skillProfile(scenario.profile)
@@ -373,10 +384,10 @@ function resumedGame(path: string) {
     game.moritaniAssassinateCallEvents
   )
     throw new Error('--resume sample scenarios exclude unsupported optional modules.');
-  const scenario = [...SCENARIOS, ...BASE_SCENARIOS, ...MODULE_SCENARIOS, ...EXPANSION_ROSTER_SCENARIOS, ...PAIRED_NEXUS_SCENARIOS, ...MORITANI_SKILLS_SCENARIOS, ...TLEILAXU_SKILLS_SCENARIOS, ...IX_SKILLS_SCENARIOS, ...CHOAM_SKILLS_SCENARIOS].find(
+  const scenario = [...SCENARIOS, ...COMBINED_NEXUS_SCENARIOS, ...BASE_SCENARIOS, ...MODULE_SCENARIOS, ...EXPANSION_ROSTER_SCENARIOS, ...PAIRED_NEXUS_SCENARIOS, ...MORITANI_SKILLS_SCENARIOS, ...TLEILAXU_SKILLS_SCENARIOS, ...IX_SKILLS_SCENARIOS, ...CHOAM_SKILLS_SCENARIOS].find(
     (candidate) =>
       (candidate.profile === 'homeworld' || candidate.profile === 'homeworld-nexus') === !!game.homeworlds &&
-      (candidate.profile === 'nexus' || candidate.profile === 'homeworld-nexus' || candidate.profile === 'choam-nexus' || candidate.profile === 'ecaz-nexus' || candidate.profile === 'ix-nexus') === !!game.nexusCards &&
+      (candidate.profile === 'nexus' || candidate.profile === 'homeworld-nexus' || candidate.profile === 'choam-nexus' || candidate.profile === 'ecaz-nexus' || candidate.profile === 'ix-nexus' || candidate.profile === 'combined-nexus') === !!game.nexusCards &&
       skillProfile(candidate.profile) === !!game.leaderSkills &&
       candidate.rules === (game.advanced ? 'advanced' : 'basic') &&
       JSON.stringify(candidate.expansions) ===
@@ -570,8 +581,10 @@ async function main() {
   const profile = parseProfile(values.profile);
   const rules = parseRules(values.rules);
   const players = parsePlayers(values.players);
-  if (supplied('players') && !['base', 'homeworld', 'nexus', 'homeworld-nexus', 'choam-roster', 'ecaz-roster', 'ix-roster', 'choam-nexus', 'ecaz-nexus', 'ix-nexus'].includes(profile) && !skillProfile(profile))
-    throw new Error('--players requires --profile base, homeworld, nexus, homeworld-nexus, choam-roster, ecaz-roster, ix-roster, choam-nexus, ecaz-nexus, ix-nexus or a skill profile.');
+  if (supplied('players') && !['base', 'homeworld', 'nexus', 'homeworld-nexus', 'combined-nexus', 'choam-roster', 'ecaz-roster', 'ix-roster', 'choam-nexus', 'ecaz-nexus', 'ix-nexus'].includes(profile) && !skillProfile(profile))
+    throw new Error('--players requires a roster or optional-module profile.');
+  if (profile === 'combined-nexus' && players !== 'all' && ![5, 6].includes(players))
+    throw new Error('--profile combined-nexus supports only five or six players.');
   if (skillProfile(profile) && rules === 'advanced')
     throw new Error('Expansion Leader Skills profiles currently support only Basic samples.');
   const resume = values.resume ? resumedGame(values.resume) : null;
@@ -579,6 +592,7 @@ async function main() {
     ? MODULE_SCENARIOS
     : profile === 'choam-roster' || profile === 'ecaz-roster' || profile === 'ix-roster' ? EXPANSION_ROSTER_SCENARIOS
     : profile === 'choam-nexus' || profile === 'ecaz-nexus' || profile === 'ix-nexus' ? PAIRED_NEXUS_SCENARIOS
+    : profile === 'combined-nexus' ? COMBINED_NEXUS_SCENARIOS
     : profile === 'base' ? BASE_SCENARIOS
     : profile === 'moritani-skills' ? MORITANI_SKILLS_SCENARIOS
     : profile === 'tleilaxu-skills' ? TLEILAXU_SKILLS_SCENARIOS