diff --git a/Client/src/main/java/view/menus/LobbyMenu.java b/Client/src/main/java/view/menus/LobbyMenu.java
index 8c1682b..ef0cb1f 100644
--- a/Client/src/main/java/view/menus/LobbyMenu.java
+++ b/Client/src/main/java/view/menus/LobbyMenu.java
@@ -1,7 +1,6 @@
 package view.menus;
 
 import com.google.gson.*;
-import com.google.gson.reflect.TypeToken;
 import controller.ApplicationManger;
 import controller.DuelController;
 import controller.GamePlaySceneController;
@@ -17,12 +16,10 @@
 import javafx.scene.paint.Color;
 import model.UserData;
 import model.enums.ChatType;
-import org.json.simple.JSONArray;
 
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -36,6 +33,7 @@ public class LobbyMenu {
     public TextField editedMessage;
     public Label editedMessageLabel;
     public Button editButton;
+    public Button cancelButton;
     private ArrayList<Integer> idOfMessage = new ArrayList<>();
 
     private static int idCounter = 0;
@@ -69,6 +67,7 @@ public void newGame() {
             startGame(response);
         } else if (type.equals("WAITING")) {
             this.message.setText(responseMessage);
+            cancelButton.setVisible(true);
             new Thread(() -> {
                 while (!isGameStarted) {
                     try {
@@ -91,6 +90,9 @@ public void newGame() {
                     if (type1.equals("SUCCESSFUL")) {
                         isGameStarted = true;
                         startGame(serverMessage);
+                    } else if (type1.equals("CANCEL")) {
+                        this.message.setText("");
+                        cancelButton.setVisible(false);
                     }
                 } catch (IOException e) {
                     e.printStackTrace();
@@ -101,6 +103,19 @@ public void newGame() {
         }
     }
 
+    public void cancel() {
+        try {
+            JsonObject jsonObject = new JsonObject();
+            jsonObject.addProperty("controller", "newGame");
+            jsonObject.addProperty("method", "cancel");
+            jsonObject.addProperty("token", ApplicationManger.getToken());
+            ApplicationManger.getDataOutputStream().writeUTF(jsonObject.toString());
+            ApplicationManger.getDataOutputStream().flush();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
     private void startGame(String serverMessage) {
         System.out.println(serverMessage);
 
@@ -172,7 +187,7 @@ public void sendMessage(ActionEvent actionEvent) {
                     errorMessage.setTextFill(Color.GREEN);
                 }
                 messages.getChildren().remove(idOfMessage.indexOf(id));
-                Label delete=new Label();
+                Label delete = new Label();
                 delete.setPrefWidth(435);
                 delete.setPrefHeight(50);
                 delete.setAlignment(Pos.CENTER);
@@ -265,7 +280,7 @@ public void refresh(ActionEvent actionEvent) {
                     nicknameAndChatType.setText("  " + nickname + " - " + chatType);
                 else nicknameAndChatType.setText(nickname);
                 message1.setText(message);
-                if (chatType.equals("DELETED")){
+                if (chatType.equals("DELETED")) {
                     message1.setTextFill(Color.BLUE);
                 }
                 vBox.getChildren().add(0, nicknameAndChatType);
diff --git a/Client/src/main/resources/FXML/Lobby.fxml b/Client/src/main/resources/FXML/Lobby.fxml
index 15748e6..950275d 100644
--- a/Client/src/main/resources/FXML/Lobby.fxml
+++ b/Client/src/main/resources/FXML/Lobby.fxml
@@ -9,7 +9,7 @@
 <?import javafx.scene.layout.VBox?>
 <?import javafx.scene.text.Font?>
 
-<AnchorPane prefHeight="900.0" prefWidth="1600.0" styleClass="background1" stylesheets="@../CSS/LobbyStyle.css" xmlns="http://javafx.com/javafx/8.0.171" xmlns:fx="http://javafx.com/fxml/1" fx:controller="view.menus.LobbyMenu">
+<AnchorPane prefHeight="900.0" prefWidth="1600.0" styleClass="background1" stylesheets="@../CSS/LobbyStyle.css" xmlns="http://javafx.com/javafx/16" xmlns:fx="http://javafx.com/fxml/1" fx:controller="view.menus.LobbyMenu">
    <children>
       <Button layoutX="60.0" layoutY="794.0" mnemonicParsing="false" onAction="#back" styleClass="back" text="Back" />
       <Button layoutX="993.0" layoutY="410.0" mnemonicParsing="false" onAction="#newGame" styleClass="back" text="New Game">
@@ -26,11 +26,16 @@
             <Font size="35.0" />
          </font>
       </CheckBox>
-      <Label fx:id="message" alignment="CENTER" layoutX="969.0" layoutY="555.0" prefHeight="50.0" prefWidth="500.0" text="" textAlignment="CENTER">
+      <Label fx:id="message" alignment="CENTER" layoutX="969.0" layoutY="555.0" prefHeight="50.0" prefWidth="500.0" style="-fx-background-color: rgb(191, 214, 224);" text="" textAlignment="CENTER">
          <font>
             <Font size="25.0" />
          </font>
       </Label>
+      <Button fx:id="cancelButton" layoutX="1120.0" layoutY="630.0" mnemonicParsing="false" onAction="#cancel" styleClass="back" text="Cancel" visible="false">
+         <font>
+            <Font size="25.0" />
+         </font>
+      </Button>
       <ScrollPane layoutX="70.0" layoutY="38.0" prefHeight="453.0" prefWidth="502.0">
          <content>
             <AnchorPane prefHeight="472.0" prefWidth="500.0" style="-fx-background-color: rgb(191, 214, 224);">
diff --git a/Server/src/main/java/controller/GameConnectionController.java b/Server/src/main/java/controller/GameConnectionController.java
index 96fe46e..5494663 100644
--- a/Server/src/main/java/controller/GameConnectionController.java
+++ b/Server/src/main/java/controller/GameConnectionController.java
@@ -32,6 +32,9 @@ public String getServerMessage(String input) {
         if (methodName.equals("newGame")) {
             return newGame(input);
         }
+        if (methodName.equals("cancel")) {
+            return cancel(input);
+        }
         return serverMessage(MessageType.ERROR, "invalid method name", null);
     }
 
@@ -55,6 +58,13 @@ private String newGame(String input) {
         return serverMessage(MessageType.WAITING, "waiting for a user to connect", null);
     }
 
+    private String cancel(String input) {
+        JsonObject jsonObject = JsonParser.parseString(input).getAsJsonObject();
+        String token = jsonObject.get("token").getAsString();
+        waitingGames.removeIf(e -> e.getUser1Token().equals(token));
+        return serverMessage(MessageType.CANCEL, "game canceled", null);
+    }
+
     public void addGameWaiter(Socket socket, String input) {
         JsonObject jsonObject = JsonParser.parseString(input).getAsJsonObject();
         String token = jsonObject.get("token").getAsString();
diff --git a/Server/src/main/java/controller/ServerManager.java b/Server/src/main/java/controller/ServerManager.java
index 89c661e..464f2d1 100644
--- a/Server/src/main/java/controller/ServerManager.java
+++ b/Server/src/main/java/controller/ServerManager.java
@@ -97,6 +97,7 @@ public void run() {
                 String result;
                 if (ServerManager.getIsInGame().get(socket)) break;
                 if (input.equals("")) break;
+                if (input.equals("alive")) continue;
                 if ((result = ServerController.checkToken(input)) == null) {
                     serverController = ServerController.getController(input);
                     if (serverController instanceof GameConnectionController) {
diff --git a/Server/src/main/java/model/enums/MessageType.java b/Server/src/main/java/model/enums/MessageType.java
index e4d6117..9544826 100644
--- a/Server/src/main/java/model/enums/MessageType.java
+++ b/Server/src/main/java/model/enums/MessageType.java
@@ -3,5 +3,6 @@
 public enum MessageType {
     ERROR,
     SUCCESSFUL,
-    WAITING
+    WAITING,
+    CANCEL
 }