diff --git a/Todo-Challenge/Todo-Challenge/Program.cs b/Todo-Challenge/Todo-Challenge/Program.cs
index 3751555..d0a3f50 100644
--- a/Todo-Challenge/Todo-Challenge/Program.cs
+++ b/Todo-Challenge/Todo-Challenge/Program.cs
@@ -1,2 +1,83 @@
-// See https://aka.ms/new-console-template for more information
-Console.WriteLine("Hello, World!");
+using System;
+using System.Collections.Generic;
+
+namespace ToDoListApp
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            List<ToDoItem> todoList = new List<ToDoItem>();
+
+            Console.WriteLine("Welcome to the To-Do List App!");
+            while (true)
+            {
+                Console.WriteLine("\nPlease choose an action:");
+                Console.WriteLine("1. Add todo item");
+                Console.WriteLine("2. Complete todo item");
+                Console.WriteLine("3. See all todo items");
+                Console.WriteLine("4. Delete todo item");
+                Console.WriteLine("5. Exit");
+
+                if (int.TryParse(Console.ReadLine(), out int choice))
+                {
+                    switch (choice)
+                    {
+                        case 1: // Add a todo item
+                            Console.Write("\nEnter todo: \n");
+                            string description = Console.ReadLine();
+                            ToDoItem newItem = new(description);
+                            todoList.Add(newItem);
+                            Console.WriteLine($"\nTodo item: '{description}' added.\n");
+                            break;
+
+                        case 2: // Complete specific todo items
+                            Console.Write("\nEnter todo number to complete: \n");
+                            if (int.TryParse(Console.ReadLine(), out int todoIndex) && todoIndex > 0 && todoIndex <= todoList.Count)
+                            {
+                                todoList[todoIndex - 1].IsCompleted = true;
+                                Console.WriteLine($"\nTodo item '{todoList[todoIndex - 1].Description}' completed.\n");
+                            }
+                            else
+                            {
+                                Console.WriteLine("\nInvalid todo number.\n");
+                            }
+                            break;
+
+                        case 3: // View all todo items
+                            if (todoList.Count == 0)
+                            {
+                                Console.WriteLine("\nYour todo list is empty.\n");
+                            }
+                            else
+                            {
+                                Console.WriteLine("\nYour To-Do List:");
+                                for (int i = 0; i < todoList.Count; i++)
+                                {
+                                    string status = todoList[i].IsCompleted ? "[X]" : "[ ]"; 
+                                    Console.WriteLine($"{i + 1}. {status} {todoList[i].Description}");
+                                }
+                            }
+                            break;
+
+                        case 4: // Delete a todo item
+                            Console.Write("\nEnter todo number to delete: \n");
+                            if (int.TryParse(Console.ReadLine(), out int todoremoveIndex) && todoremoveIndex > 0 && todoremoveIndex <= todoList.Count)
+                            {
+                                todoList.RemoveAt(todoremoveIndex - 1);
+                                Console.WriteLine($"\nTodo number {todoremoveIndex} deleted.\n");
+                            }
+                            else
+                            {
+                                Console.WriteLine("\nInvalid todo number.\n");
+                            }
+                            break;
+
+                        case 5:
+                            return;
+                    }
+                }
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/Todo-Challenge/Todo-Challenge/ToDoItemClass.cs b/Todo-Challenge/Todo-Challenge/ToDoItemClass.cs
new file mode 100644
index 0000000..89813ae
--- /dev/null
+++ b/Todo-Challenge/Todo-Challenge/ToDoItemClass.cs
@@ -0,0 +1,14 @@
+namespace ToDoListApp
+{
+    public class ToDoItem
+    {
+        public string Description { get; set; }
+        public bool IsCompleted { get; set; }
+
+        public ToDoItem(string description)
+        {
+            Description = description;
+            IsCompleted = false;
+        }
+    }
+}
\ No newline at end of file