Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


//Namespace
namespace NumberGuesser
{
    //Main Class
    class Program
    {
        //Entry Point Method
        static void Main(string[] args)
        {
            GetAppInfo(); // Run GertAppInfo function to get info

            GreetUser(); // Ask for user name and greet function
     
            while (true)
            {

                // Create a new Random Object
                Random random = new Random();

                // Init correct number
                int correctNumber = random.Next(1, 11);

                // Init guess var
                int guess = 0;

                // Ask user for number
                Console.WriteLine("Guess a number betwenn 1 and 10");

                // While guess is not correct
                while (guess != correctNumber)
                {
                    // Get Users input
                    string input = Console.ReadLine();

                    // Make sure its a number
                    if (!int.TryParse(input, out guess))
                    {
                        // Print color message
                        PrintColorMessage(ConsoleColor.Red, "Please use an actual number");

                        // Keep going
                        continue;
                    }

                    // Cast to int and put in guess
                    guess = Int32.Parse(input);

                    // Match guess to correct number
                    if (guess != correctNumber)
                    {

                        // Print error message
                        PrintColorMessage(ConsoleColor.Red, "Wrong number, please try again.");
                    }
                }

                // Print success message
                PrintColorMessage(ConsoleColor.Yellow, "You are correct!!");

                // Ask to play again
                Console.WriteLine("Play Again? [Y or N]");

                // Get answer
                string answer = Console.ReadLine().ToUpper();

                if (answer == "Y") {
                    continue;
                }
                else if (answer == "N"){
                    return;
                }
                else {
                    return;
                }
            }

        }
        // Get and display app info
        static void GetAppInfo()
        {
            //Set app vars
            string appName = "Number Guesser";
            string appVersion = "1.0.0";
            string appAuthor = "BMO";

            // Change text color
            Console.ForegroundColor = ConsoleColor.Green;

            // Write out app info
            Console.WriteLine("{0}: Version {1} by {2}", appName, appVersion, appAuthor);

            // Reset text color (to white)
            Console.ResetColor();
        }
        // Ask users name and greet
        static void GreetUser()
        {
            // Ask users name
            Console.WriteLine("What is your name?");

            // Get user input
            string inputName = Console.ReadLine();

            Console.WriteLine("Hello, {0}, lets play a game...", inputName);
        }

        // Print color message
        static void PrintColorMessage(ConsoleColor color, string message)
        {
            // Change text color
            Console.ForegroundColor = color;

            // Tell user its a messege
            Console.WriteLine(message);

            // Reset text color (to white)
            Console.ResetColor();
        }
    }
}