diff --git a/src/game/AI/ScriptDevAI/scripts/outland/coilfang_reservoir/underbog/underbog.cpp b/src/game/AI/ScriptDevAI/scripts/outland/coilfang_reservoir/underbog/underbog.cpp
index 0511bae8ffc..b94181bb73d 100644
--- a/src/game/AI/ScriptDevAI/scripts/outland/coilfang_reservoir/underbog/underbog.cpp
+++ b/src/game/AI/ScriptDevAI/scripts/outland/coilfang_reservoir/underbog/underbog.cpp
@@ -23,6 +23,7 @@ EndScriptData */
 
 #include "AI/ScriptDevAI/include/sc_common.h"
 #include "underbog.h"
+#include "World/WorldStateDefines.h"
 
 instance_underbog::instance_underbog(Map* map) : ScriptedInstance(map), m_bGhazanSurfaced(false)
 {
@@ -31,7 +32,13 @@ instance_underbog::instance_underbog(Map* map) : ScriptedInstance(map), m_bGhaza
 
 void instance_underbog::Initialize()
 {
-
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_3, urand(0, 1));
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_18, urand(0, 1));
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_19, urand(0, 1));
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_20, urand(0, 1));
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_22, urand(0, 1));
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_24, urand(0, 1));
+    instance->GetVariableManager().SetVariable(WORLD_STATE_UNDERBOG_GROUP_25, urand(0, 1));
 }
 
 void instance_underbog::SetData(uint32 type, uint32 data)
diff --git a/src/game/World/WorldStateDefines.h b/src/game/World/WorldStateDefines.h
index 30f06dbb7b9..46c8b5e3f56 100644
--- a/src/game/World/WorldStateDefines.h
+++ b/src/game/World/WorldStateDefines.h
@@ -356,6 +356,16 @@ enum WorldStateID : int32
     WORLD_STATE_PROTEAN_HORROR     = 5520001,               // Prevents that Protean Horrors respawn
     WORLD_STATE_PROTEAN_NIGHTMARE  = 5520002,               // Prevents that Protean Nightmare respawn
     
+    // The Underbog
+    WORLD_STATE_UNDERBOG_GROUP_3    = 5460001,              // 2 Possible group versions
+    WORLD_STATE_UNDERBOG_GROUP_18   = 5460002,              // 2 Possible group versions
+
+    WORLD_STATE_UNDERBOG_GROUP_19   = 5460003,              // 2 Possible group versions
+    WORLD_STATE_UNDERBOG_GROUP_20   = 5460004,              // 2 Possible group versions
+    WORLD_STATE_UNDERBOG_GROUP_22   = 5460005,              // 2 Possible group versions
+    WORLD_STATE_UNDERBOG_GROUP_24   = 5460006,              // 2 Possible group versions
+    WORLD_STATE_UNDERBOG_GROUP_25   = 5460007,              // 2 Possible group versions
+
     // The Slave Pens
     WORLD_STATE_NATURALIST_BITE    = 5470044,              // Spawns Coilfang Group after freeing Naturalist Bite