diff --git a/src/map/utils/mobutils.cpp b/src/map/utils/mobutils.cpp
index d9da85d49b2..129e2d6c18e 100644
--- a/src/map/utils/mobutils.cpp
+++ b/src/map/utils/mobutils.cpp
@@ -788,6 +788,11 @@ namespace mobutils
             SetupNMMob(PMob);
         }
 
+        if (zoneType & ZONE_TYPE::INSTANCED)
+        {
+            SetupDungeonInstanceMob(PMob);
+        }
+
         if (PMob->m_Type & MOBTYPE_EVENT)
         {
             SetupEventMob(PMob);
@@ -1155,6 +1160,26 @@ namespace mobutils
         }
     }
 
+    void SetupDungeonInstanceMob(CMobEntity* PMob)
+    {
+        PMob->setMobMod(MOBMOD_GIL_MAX, 0);
+        PMob->setMobMod(MOBMOD_MUG_GIL, 0);
+        PMob->loc.p = PMob->m_SpawnPoint;
+        // never despawn
+        PMob->SetDespawnTime(0s);
+        PMob->setMobMod(MOBMOD_NO_DESPAWN, 1);
+        // Salvage and Nyzul
+        if (PMob->getZone() >= ZONE_ZHAYOLM_REMNANTS && PMob->getZone() <= ZONE_NYZUL_ISLE)
+        {
+            // Salvage and Nyzul mobs can not be charmed
+            PMob->setMobMod(MOBMOD_CHARMABLE, 0);
+            if (PMob->getZone() != ZONE_NYZUL_ISLE)
+            {
+                PMob->setMobMod(MOBMOD_CHECK_AS_NM, 1);
+            }
+        }
+    }
+
     void RecalculateSpellContainer(CMobEntity* PMob)
     {
         // clear spell list
diff --git a/src/map/utils/mobutils.h b/src/map/utils/mobutils.h
index 811c862b1fa..f4562377869 100644
--- a/src/map/utils/mobutils.h
+++ b/src/map/utils/mobutils.h
@@ -62,6 +62,7 @@ namespace mobutils
     void SetupDungeonMob(CMobEntity* PMob);
     void SetupEventMob(CMobEntity* PMob);
     void SetupNMMob(CMobEntity* PMob);
+    void SetupDungeonInstanceMob(CMobEntity* PMob);
     void SetupPetSkills(CMobEntity* PMob);
 
     uint8 JobSkillRankToBaseEvaRank(JOBTYPE job);