diff --git a/Simulation/launch/turtlebot3_stage_1.launch b/Simulation/launch/turtlebot3_stage_1.launch
deleted file mode 100644
index 02f5f85341a4f989a8d08edfe057b71898ff3bf4..0000000000000000000000000000000000000000
--- a/Simulation/launch/turtlebot3_stage_1.launch
+++ /dev/null
@@ -1,21 +0,0 @@
-<launch>
-  <arg name="model" default="$(env TURTLEBOT3_MODEL)" doc="model type [burger, waffle, waffle_pi]"/>
-  <arg name="x_pos" default="0.0"/>
-  <arg name="y_pos" default="0.0"/>
-  <arg name="z_pos" default="0.0"/>
-
-  <include file="$(find gazebo_ros)/launch/empty_world.launch">
-    <arg name="world_name" value="$(find turtlebot3_gazebo)/worlds/turtlebot3_stage_1.world"/>
-    <arg name="paused" value="false"/>
-    <arg name="use_sim_time" value="0.1"/>
-    <arg name="gui" value="true"/>
-    <arg name="headless" value="false"/>
-    <arg name="debug" value="false"/>
-  </include>  
-
-
-  <param name="robot_description" command="$(find xacro)/xacro.py $(find turtlebot3_description)/urdf/turtlebot3_$(arg model).urdf.xacro" />
-
-  <node name="spawn_urdf" pkg="gazebo_ros" type="spawn_model" args="-urdf -model turtlebot3_burger -x $(arg x_pos) -y $(arg y_pos) -z $(arg z_pos) -param robot_description" />
-
-</launch>
diff --git a/Simulation/launch/turtlebot3_stage_2.launch b/Simulation/launch/turtlebot3_stage_2.launch
deleted file mode 100644
index b1320c6a8a02f51c79063af6950e5bacca8b16a1..0000000000000000000000000000000000000000
--- a/Simulation/launch/turtlebot3_stage_2.launch
+++ /dev/null
@@ -1,20 +0,0 @@
-<launch>
-  <arg name="model" default="$(env TURTLEBOT3_MODEL)" doc="model type [burger, waffle, waffle_pi]"/>
-  <arg name="x_pos" default="0.0"/>
-  <arg name="y_pos" default="0.0"/>
-  <arg name="z_pos" default="0.0"/>
-
-  <include file="$(find gazebo_ros)/launch/empty_world.launch">
-    <arg name="world_name" value="$(find turtlebot3_gazebo)/worlds/turtlebot3_stage_2.world"/>
-    <arg name="paused" value="false"/>
-    <arg name="use_sim_time" value="true"/>
-    <arg name="gui" value="true"/>
-    <arg name="headless" value="false"/>
-    <arg name="debug" value="false"/>
-  </include>  
-
-
-  <param name="robot_description" command="$(find xacro)/xacro.py $(find turtlebot3_description)/urdf/turtlebot3_$(arg model).urdf.xacro" />
-
-  <node name="spawn_urdf" pkg="gazebo_ros" type="spawn_model" args="-urdf -model turtlebot3_burger -x $(arg x_pos) -y $(arg y_pos) -z $(arg z_pos) -param robot_description" />
-</launch>
diff --git a/Simulation/launch/turtlebot3_stage_3.launch b/Simulation/launch/turtlebot3_stage_3.launch
deleted file mode 100644
index 7a5d7277db675055c139153e2bf5feea8f2c9d1f..0000000000000000000000000000000000000000
--- a/Simulation/launch/turtlebot3_stage_3.launch
+++ /dev/null
@@ -1,20 +0,0 @@
-<launch>
-  <arg name="model" default="$(env TURTLEBOT3_MODEL)" doc="model type [burger, waffle, waffle_pi]"/>
-  <arg name="x_pos" default="0.0"/>
-  <arg name="y_pos" default="0.0"/>
-  <arg name="z_pos" default="0.0"/>
-
-  <include file="$(find gazebo_ros)/launch/empty_world.launch">
-    <arg name="world_name" value="$(find turtlebot3_gazebo)/worlds/turtlebot3_stage_3.world"/>
-    <arg name="paused" value="false"/>
-    <arg name="use_sim_time" value="true"/>
-    <arg name="gui" value="true"/>
-    <arg name="headless" value="false"/>
-    <arg name="debug" value="false"/>
-  </include>  
-
-  <param name="robot_description" command="$(find xacro)/xacro.py $(find turtlebot3_description)/urdf/turtlebot3_$(arg model).urdf.xacro" />
-
-  <node name="spawn_urdf" pkg="gazebo_ros" type="spawn_model" args="-urdf -model turtlebot3_burger -x $(arg x_pos) -y $(arg y_pos) -z $(arg z_pos) -param robot_description" />
-
-</launch>
diff --git a/Simulation/launch/turtlebot3_stage_4.launch b/Simulation/launch/turtlebot3_stage_4.launch
deleted file mode 100644
index 9be90b54ac807cb32db76d29b2bd39334a532bd4..0000000000000000000000000000000000000000
--- a/Simulation/launch/turtlebot3_stage_4.launch
+++ /dev/null
@@ -1,21 +0,0 @@
-<launch>
-  <arg name="model" default="$(env TURTLEBOT3_MODEL)" doc="model type [burger, waffle, waffle_pi]"/>
-  <arg name="x_pos" default="-0.7"/>
-  <arg name="y_pos" default="0.0"/>
-  <arg name="z_pos" default="0.0"/>
-
-  <include file="$(find gazebo_ros)/launch/empty_world.launch">
-    <arg name="world_name" value="$(find turtlebot3_gazebo)/worlds/turtlebot3_stage_4.world"/>
-    <arg name="paused" value="false"/>
-    <arg name="use_sim_time" value="true"/>
-    <arg name="gui" value="true"/>
-    <arg name="headless" value="false"/>
-    <arg name="debug" value="false"/>
-  </include>  
-
-
-  <param name="robot_description" command="$(find xacro)/xacro.py $(find turtlebot3_description)/urdf/turtlebot3_$(arg model).urdf.xacro" />
-
-  <node name="spawn_urdf" pkg="gazebo_ros" type="spawn_model" args="-urdf -model turtlebot3_burger -x $(arg x_pos) -y $(arg y_pos) -z $(arg z_pos) -param robot_description" />
-
-</launch>