CasinoConsole

using System;

namespace Casino
{
    class CasinoConsole
    {
        private static LottoCard lottoCard = new LottoCard();
        public static int turnsRemaining = 3;

        static void Main(string[] args)
        {
            LottoCard playerGuess;

            do
            {
                playerGuess = PlayerInteraction(); // this is where the gui can be put in
            } while (!playerGuess.GetSuccess(lottoCard) && 0 > turnsRemaining--);

            Console.WriteLine(playerGuess.GetSuccess(lottoCard));
            Console.ReadLine();
        }

        private static LottoCard PlayerInteraction(string additionalGreeting = "")
        {         
            const int digitsInLottoNumber = 5;
            Console.WriteLine($"{additionalGreeting} i need {digitsInLottoNumber} digits (1 - 99).");
            int[] tempGuess = new int[digitsInLottoNumber];

            for (int i = 0; i < 5; i++)
                int.TryParse(Console.ReadLine(), out tempGuess[i]);

            return new LottoCard(tempGuess);
        }
    }
}

LottoCard

using System;

namespace Casino
{
    class LottoCard
    {
        private const int digitsInLottoNumber = 5;
        private const int lottoDigitMaxValue = 99;
        private int[] lottoNumber;

        public LottoCard()
        {
            lottoNumber = GenerateRandomLottoNumber();
        }

        public LottoCard(int[] nums)
        {
            lottoNumber = nums;
        }

        public bool GetSuccess(LottoCard otherCard)
        {
            int correctGuesses = 0;
            Func<int, int, int> percent =
                (int num, int denom) => Convert.ToInt16(100.0 * ((1.0 * num) / (1.0 * denom)));

            for (int i = 0; i < digitsInLottoNumber; i++)
                correctGuesses += lottoNumber[i] == otherCard.lottoNumber[i] ? 1 : 0;

            return  50 <= percent(correctGuesses, digitsInLottoNumber); // better than 50% right
        }

        private int[] GenerateRandomLottoNumber()
        {
            Random rnd = new Random();
            int[] tempNum = new int[digitsInLottoNumber];

            for (int i = 0; i < digitsInLottoNumber; i++)
                tempNum[i] = rnd.Next(lottoDigitMaxValue);

            return tempNum;
        }
    }
}