diff --git a/src/game/AchievementMgr.cpp b/src/game/AchievementMgr.cpp
index 1a4a55412..9fe0c1e9a 100644
--- a/src/game/AchievementMgr.cpp
+++ b/src/game/AchievementMgr.cpp
@@ -35,6 +35,8 @@
 #include "MapManager.h"
 #include "BattleGround.h"
 #include "BattleGroundAB.h"
+#include "Map.h"
+#include "InstanceData.h"
 
 #include "Policies/SingletonImp.h"
 
@@ -102,6 +104,8 @@ bool AchievementCriteriaRequirement::IsValid(AchievementCriteriaEntry const* cri
         case ACHIEVEMENT_CRITERIA_REQUIRE_NONE:
         case ACHIEVEMENT_CRITERIA_REQUIRE_VALUE:
         case ACHIEVEMENT_CRITERIA_REQUIRE_DISABLED:
+        case ACHIEVEMENT_CRITERIA_REQUIRE_BG_LOSS_TEAM_SCORE:
+        case ACHIEVEMENT_CRITERIA_REQUIRE_INSTANCE_SCRIPT:
             return true;
         case ACHIEVEMENT_CRITERIA_REQUIRE_T_CREATURE:
             if (!creature.id || !ObjectMgr::GetCreatureTemplate(creature.id))
@@ -235,8 +239,6 @@ bool AchievementCriteriaRequirement::IsValid(AchievementCriteriaEntry const* cri
                 return false;
             }
             return true;
-        case ACHIEVEMENT_CRITERIA_REQUIRE_BG_LOSS_TEAM_SCORE:
-            return true;                                    // not check correctness node indexes
         default:
             sLog.outErrorDb( "Table `achievement_criteria_requirement` (Entry: %u Type: %u) have data for not supported data type (%u), ignore.", criteria->ID, criteria->requiredType,requirementType);
             return false;
@@ -244,7 +246,7 @@ bool AchievementCriteriaRequirement::IsValid(AchievementCriteriaEntry const* cri
     return false;
 }
 
-bool AchievementCriteriaRequirement::Meets(Player const* source, Unit const* target, uint32 miscvalue1 /*= 0*/) const
+bool AchievementCriteriaRequirement::Meets(uint32 criteria_id, Player const* source, Unit const* target, uint32 miscvalue1 /*= 0*/) const
 {
     switch(requirementType)
     {
@@ -312,6 +314,16 @@ bool AchievementCriteriaRequirement::Meets(Player const* source, Unit const* tar
                 return false;
             return bg->IsTeamScoreInRange(source->GetTeam()==ALLIANCE ? HORDE : ALLIANCE,bg_loss_team_score.min_score,bg_loss_team_score.max_score);
         }
+        case ACHIEVEMENT_CRITERIA_REQUIRE_INSTANCE_SCRIPT:
+            if (!source->IsInWorld())
+                return false;
+            Map* map = source->GetMap();
+            if (!map->Instanceable())
+                return false;
+            InstanceData* data = ((InstanceMap*)map)->GetInstanceData();
+            if (!data)
+                return false;
+            return data->CheckAchievementCriteriaMeet(criteria_id, source, target, miscvalue1);
     }
     return false;
 }
@@ -319,7 +331,7 @@ bool AchievementCriteriaRequirement::Meets(Player const* source, Unit const* tar
 bool AchievementCriteriaRequirementSet::Meets(Player const* source, Unit const* target, uint32 miscvalue /*= 0*/) const
 {
     for(Storage::const_iterator itr = storage.begin(); itr != storage.end(); ++itr)
-        if(!itr->Meets(source,target,miscvalue))
+        if(!itr->Meets(criteria_id, source, target, miscvalue))
             return false;
 
     return true;
diff --git a/src/game/AchievementMgr.h b/src/game/AchievementMgr.h
index b13441194..be071a279 100644
--- a/src/game/AchievementMgr.h
+++ b/src/game/AchievementMgr.h
@@ -60,9 +60,10 @@ enum AchievementCriteriaRequirementType
     ACHIEVEMENT_CRITERIA_REQUIRE_S_DRUNK             = 15,  // drunken_state  0             (enum DrunkenState) of player
     ACHIEVEMENT_CRITERIA_REQUIRE_HOLIDAY             = 16,  // holiday_id     0             event in holiday time
     ACHIEVEMENT_CRITERIA_REQUIRE_BG_LOSS_TEAM_SCORE  = 17,  // min_score      max_score     player's team win bg and opposition team have team score in range
+    ACHIEVEMENT_CRITERIA_REQUIRE_INSTANCE_SCRIPT     = 18,  // 0              0             maker instance script call for check curent criteria requirements fit
 };
 
-#define MAX_ACHIEVEMENT_CRITERIA_REQUIREMENT_TYPE      18 // maximum value in AchievementCriteriaRequirementType enum
+#define MAX_ACHIEVEMENT_CRITERIA_REQUIREMENT_TYPE      19 // maximum value in AchievementCriteriaRequirementType enum
 
 class Player;
 class Unit;
@@ -175,15 +176,18 @@ struct AchievementCriteriaRequirement
     }
 
     bool IsValid(AchievementCriteriaEntry const* criteria);
-    bool Meets(Player const* source, Unit const* target, uint32 miscvalue1 = 0) const;
+    bool Meets(uint32 criteria_id, Player const* source, Unit const* target, uint32 miscvalue1 = 0) const;
 };
 
 struct AchievementCriteriaRequirementSet
 {
+        AchievementCriteriaRequirementSet() : criteria_id(0) {}
+        explicit AchievementCriteriaRequirementSet(uint32 id) : criteria_id(id) {}
         typedef std::vector<AchievementCriteriaRequirement> Storage;
         void Add(AchievementCriteriaRequirement const& data) { storage.push_back(data); }
         bool Meets(Player const* source, Unit const* target, uint32 miscvalue = 0) const;
     private:
+        uint32 criteria_id;
         Storage storage;
 };
 
diff --git a/src/game/InstanceData.h b/src/game/InstanceData.h
index 4099e7aa3..b7539fc2f 100644
--- a/src/game/InstanceData.h
+++ b/src/game/InstanceData.h
@@ -70,5 +70,12 @@ class MANGOS_DLL_SPEC InstanceData
         //All-purpose data storage 32 bit
         virtual uint32 GetData(uint32 /*Type*/) { return 0; }
         virtual void SetData(uint32 /*Type*/, uint32 /*Data*/) {}
+
+        // Achievement criteria additional requirements check
+        // NOTE: not use this if same can be checked existed requirement types from AchievementCriteriaRequirementType
+        virtual bool CheckAchievementCriteriaMeet(uint32 /*criteria_id*/, Player const* /*source*/, Unit const* /*target*/ = NULL, uint32 /*miscvalue1*/ = 0)
+        {
+            return false;
+        }
 };
 #endif
diff --git a/src/shared/revision_nr.h b/src/shared/revision_nr.h
index b7694a31f..d5a4c8ce7 100644
--- a/src/shared/revision_nr.h
+++ b/src/shared/revision_nr.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "9025"
+ #define REVISION_NR "9026"
 #endif // __REVISION_NR_H__