diff --git a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Entities/EntitiesFactory.cs b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Entities/EntitiesFactory.cs
index 32c8021..3a8703c 100644
--- a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Entities/EntitiesFactory.cs
+++ b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Entities/EntitiesFactory.cs
@@ -239,7 +239,7 @@ namespace _Project.Develop.Runtime.Entities
                 .AddUseEnergyRequest()
                 .AddRegenEnergyEvent()
                 .AddRegenEnergyRequest()
-                .AddAutoRegenEnergyAmount(new ReactiveVariable<int>(5))
+                .AddAutoRegenEnergyAmount(new ReactiveVariable<int>(10))
                 .AddIsAutoRegenEnergy(new ReactiveVariable<bool>(true))
                 .AddEnergyAutoRegenCurrentTime()
                 .AddEnergyAutoRegenInitialTime(new ReactiveVariable<float>(3))
@@ -283,7 +283,8 @@ namespace _Project.Develop.Runtime.Entities
             entity
                 .AddSystem(new TeleportByInputSystem(_playerInput))
                 
-                .AddSystem(new RegenEnergySystem())
+                // .AddSystem(new RegenEnergyByValueSystem())
+                .AddSystem(new RegenEnergyByPercentageSystem())
                 .AddSystem(new UseEnergySystem())
                 .AddSystem(new AutoRegenEnergyTimerSystem())
                 
diff --git a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByPercentageSystem.cs b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByPercentageSystem.cs
new file mode 100644
index 0000000..ba5925c
--- /dev/null
+++ b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByPercentageSystem.cs
@@ -0,0 +1,66 @@
+using System;
+using _Project.Develop.Runtime.Entities;
+using _Project.Develop.Runtime.Utilities.Conditions;
+using _Project.Develop.Runtime.Utils.ReactiveManagement;
+using _Project.Develop.Runtime.Utils.ReactiveManagement.Event;
+using Unity.Mathematics;
+
+namespace _Project.Develop.Runtime.Logic.Gameplay.Features.Energy.Systems
+{
+    public class RegenEnergyByPercentageSystem : IInitializableSystem, IDisposableSystem
+    {
+        private ReactiveEvent<int> _regenEnergyRequest;
+        private ReactiveEvent<int> _regenEnergyEvent;
+        
+        private ReactiveVariable<int> _currentEnergy;
+        private ReactiveVariable<int> _maxEnergy;
+        
+        private ICompositeCondition _canRegen;
+        
+        private IDisposable _regenRequestDispose;
+        
+        public void OnInit(Entity entity)
+        {
+            _currentEnergy = entity.CurrentEnergy;
+            _maxEnergy = entity.MaxEnergy;
+            
+            _regenEnergyRequest = entity.RegenEnergyRequest;
+            _regenEnergyEvent = entity.RegenEnergyEvent;
+            
+            _canRegen = entity.CanRegenEnergy;
+    
+            _regenRequestDispose = _regenEnergyRequest.Subscribe(OnRegenRequest);
+        }
+    
+        private void OnRegenRequest(int percentage)
+        {
+            if (percentage <= 0)
+                throw new ArgumentException("Energy regen percentage must be positive", nameof(percentage));
+            
+            if (_canRegen.Evaluate() == false)
+                return;
+            
+            int energyDifference = _maxEnergy.Value - _currentEnergy.Value;
+
+            if (energyDifference <= 0)
+                return;
+            
+            float regenAmountFloat = _maxEnergy.Value * (percentage / 100f);
+            int regenAmount = (int)math.floor(regenAmountFloat);
+            
+            if (regenAmount < 1 && _maxEnergy.Value > 0)
+                regenAmount = 1;
+            
+            int valueAdded = math.min(regenAmount, energyDifference);
+
+            _currentEnergy.Value += valueAdded;
+            
+            _regenEnergyEvent.Invoke(valueAdded);
+        }
+    
+        public void OnDispose()
+        {
+            _regenRequestDispose.Dispose();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByPercentageSystem.cs.meta b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByPercentageSystem.cs.meta
new file mode 100644
index 0000000..790afd2
--- /dev/null
+++ b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByPercentageSystem.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 64b02472a4344eecb0b2d2f27d44e3a3
+timeCreated: 1771774135
\ No newline at end of file
diff --git a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergySystem.cs b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByValueSystem.cs
similarity index 87%
rename from Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergySystem.cs
rename to Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByValueSystem.cs
index 1643214..a563f6f 100644
--- a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergySystem.cs
+++ b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByValueSystem.cs
@@ -8,7 +8,7 @@ using UnityEngine;
 
 namespace _Project.Develop.Runtime.Logic.Gameplay.Features.Energy.Systems
 {
-    public class RegenEnergySystem : IInitializableSystem, IDisposableSystem
+    public class RegenEnergyByValueSystem : IInitializableSystem, IDisposableSystem
     {
         private ReactiveEvent<int> _regenEnergyRequest;
         private ReactiveEvent<int> _regenEnergyEvent;
@@ -36,7 +36,7 @@ namespace _Project.Develop.Runtime.Logic.Gameplay.Features.Energy.Systems
         private void OnRegenRequest(int value)
         {
             if (value <= 0)
-                throw new ArgumentException($"Energy regen value must be positive. Received: {value}", nameof(value));
+                throw new ArgumentException("Energy regen value must be positive", nameof(value));
             
             if (_canRegen.Evaluate() == false)
                 return;
@@ -50,7 +50,7 @@ namespace _Project.Develop.Runtime.Logic.Gameplay.Features.Energy.Systems
             
             _currentEnergy.Value += valueAdded;
             
-            _regenEnergyEvent.Invoke(value);
+            _regenEnergyEvent.Invoke(valueAdded);
         }
     
         public void OnDispose()
diff --git a/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergySystem.cs.meta b/Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByValueSystem.cs.meta
similarity index 100%
rename from Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergySystem.cs.meta
rename to Assets/_Project/Develop/Runtime/Logic/Gameplay/Features/Energy/Systems/RegenEnergyByValueSystem.cs.meta