diff --git a/GameEngine/Data/hero_items.php b/GameEngine/Data/hero_items.php
index 9d14d00e..04e2d997 100644
--- a/GameEngine/Data/hero_items.php
+++ b/GameEngine/Data/hero_items.php
@@ -305,3 +305,19 @@ if (!function_exists('heroItemName')) {
         return isset($heroItemCatalog[$itemid]['name']) ? $heroItemCatalog[$itemid]['name'] : 'Unknown item';
     }
 }
+
+/**
+ * Tribe an item belongs to: 0 = universal (helmets, armors, boots, etc.),
+ * 1/2/3 = Romans/Teutons/Gauls for the unit-bound right-hand weapons
+ * (u1-10 -> 1, u11-20 -> 2, u21-30 -> 3). Single source for both the
+ * adventure drop filter and the tribe-filtered auction listing.
+ */
+if (!function_exists('heroItemTribe')) {
+    function heroItemTribe($itemid) {
+        global $heroItemCatalog;
+        if (!isset($heroItemCatalog[$itemid]['unit'])) {
+            return 0;
+        }
+        return intdiv((int) $heroItemCatalog[$itemid]['unit'] - 1, 10) + 1;
+    }
+}
diff --git a/GameEngine/HeroAdventure.php b/GameEngine/HeroAdventure.php
index 2e84a42f..6435d2d2 100644
--- a/GameEngine/HeroAdventure.php
+++ b/GameEngine/HeroAdventure.php
@@ -398,7 +398,7 @@ class HeroAdventure
             // if no gear dropped, roll the consumable pool. One item max.
             $itemId = 0; $itemQty = 0;
             if (mt_rand(1, 100) <= (int) ($cfg['equip_chance'] ?? 0)) {
-                $itemId  = $this->rollEquipment();
+                $itemId  = $this->rollEquipment($uid);
                 $itemQty = ($itemId > 0) ? 1 : 0;
             }
             if ($itemId === 0 && mt_rand(1, 100) <= (int) $cfg['item_chance']) {
@@ -531,16 +531,19 @@ class HeroAdventure
     }
 
     /**
-     * Roll one random piece of EQUIPMENT (any non-bag catalog item, including
-     * weapons for other tribes - unusable finds feed the auction house, same
-     * as T4). Tier picked by 'equip_tier_weights' (T1 common, T3 very rare),
-     * then a uniform pick inside that tier. Returns an itemid, or 0 if the
-     * rolled tier happens to be empty (defensive; never true with the
-     * shipped catalog).
+     * Roll one random piece of EQUIPMENT. Universal gear (helmets, armors,
+     * boots, horses, left-hand) drops for everyone; right-hand WEAPONS only
+     * drop for the owner's own tribe (T4 behavior - a Roman never finds a
+     * Teuton club). Tier picked by 'equip_tier_weights' (T1 common, T3 very
+     * rare), then a uniform pick inside that tier. Returns an itemid, or 0
+     * if the rolled tier happens to be empty (defensive; never true with
+     * the shipped catalog).
      */
-    public function rollEquipment()
+    public function rollEquipment($uid = 0)
     {
-        global $heroItemCatalog, $heroAdventureConfig;
+        global $database, $heroItemCatalog, $heroAdventureConfig;
+
+        $tribe = ((int) $uid > 0) ? (int) $database->getUserField((int) $uid, 'tribe', 0) : 0;
 
         $weights = $heroAdventureConfig['equip_tier_weights'];
         $roll = mt_rand(1, 100); $acc = 0; $tier = 1;
@@ -551,9 +554,14 @@ class HeroAdventure
 
         $pool = array();
         foreach ($heroItemCatalog as $iid => $def) {
-            if ((int) $def['slot'] !== HSLOT_BAG && (int) $def['tier'] === $tier) {
-                $pool[] = $iid;
+            if ((int) $def['slot'] === HSLOT_BAG || (int) $def['tier'] !== $tier) {
+                continue;
             }
+            $itemTribe = heroItemTribe($iid);
+            if ($itemTribe !== 0 && $tribe > 0 && $itemTribe !== $tribe) {
+                continue; // foreign-tribe weapon
+            }
+            $pool[] = $iid;
         }
         return count($pool) ? (int) $pool[array_rand($pool)] : 0;
     }
diff --git a/GameEngine/HeroAuction.php b/GameEngine/HeroAuction.php
index 61816fa1..f3d10019 100644
--- a/GameEngine/HeroAuction.php
+++ b/GameEngine/HeroAuction.php
@@ -83,10 +83,22 @@ class HeroAuction
      *  READS
      * ===================================================================== */
 
-    /** All open, unexpired auctions (newest ending first optional; default: ending soonest). */
-    public function getOpenAuctions($limit = 50)
+    /**
+     * All open, unexpired auctions, ending soonest first.
+     * When $viewerUid is given, right-hand WEAPONS of other tribes are
+     * hidden (T4 behavior: a Roman only sees Roman weapon lots). Universal
+     * gear and consumables are always shown. The SQL over-fetches slightly
+     * so the filter still fills the page.
+     */
+    public function getOpenAuctions($limit = 50, $viewerUid = 0)
     {
+        global $database;
         $now = time(); $limit = max(1, (int) $limit);
+
+        $viewerTribe = ((int) $viewerUid > 0)
+            ? (int) $database->getUserField((int) $viewerUid, 'tribe', 0) : 0;
+        $fetch = $viewerTribe > 0 ? $limit * 2 : $limit;
+
         $stmt = $this->db->prepare(
             "SELECT id, seller, itemid, slot, stat_value, quantity,
                     silver_start, silver_current, bidder, created, time_end, status
@@ -94,14 +106,23 @@ class HeroAuction
               WHERE status = " . self::ST_OPEN . " AND time_end > ?
               ORDER BY time_end ASC LIMIT ?"
         );
-        $stmt->bind_param('ii', $now, $limit);
+        $stmt->bind_param('ii', $now, $fetch);
         $stmt->execute();
         $res = $stmt->get_result();
         $out = array();
         while ($row = $res->fetch_assoc()) {
+            if ($viewerTribe > 0) {
+                $itemTribe = heroItemTribe($row['itemid']);
+                if ($itemTribe !== 0 && $itemTribe !== $viewerTribe) {
+                    continue; // foreign-tribe weapon lot
+                }
+            }
             $row['name'] = heroItemName($row['itemid']);
             // bid_max intentionally NOT selected - it's the bidder's secret.
             $out[] = $row;
+            if (count($out) >= $limit) {
+                break;
+            }
         }
         $stmt->close();
         return $out;
diff --git a/Templates/Build/37_auction.tpl b/Templates/Build/37_auction.tpl
index 8a7f2071..04083e23 100644
--- a/Templates/Build/37_auction.tpl
+++ b/Templates/Build/37_auction.tpl
@@ -32,7 +32,7 @@ if (isset($_POST['t4action'])) {
     }
 }
 
-$t4Open    = $t4Auction->getOpenAuctions();
+$t4Open    = $t4Auction->getOpenAuctions(50, $session->uid);
 $t4MyBids  = $t4Auction->getMyBids($session->uid);
 $t4MySales = $t4Auction->getMySales($session->uid);
 $t4Now     = time();