diff --git a/75_Roulette/csharp/Game.cs b/75_Roulette/csharp/Game.cs
index efb4b966..c9570ca1 100644
--- a/75_Roulette/csharp/Game.cs
+++ b/75_Roulette/csharp/Game.cs
@@ -1,18 +1,156 @@
+using System.Collections.Immutable;
+
 namespace Roulette;
 
 internal class Game
 {
     private readonly IReadWrite _io;
     private readonly IRandom _random;
+    private readonly Table _table;
 
     public Game(IReadWrite io, IRandom random)
     {
         _io = io;
         _random = random;
+        _table = new Table(io, random);
     }
 
     public void Play()
     {
-        
+        _io.Write(Streams.Title);
+        if (!_io.ReadString(Prompts.Instructions).ToLowerInvariant().StartsWith('n'))
+        {
+            _io.Write(Streams.Instructions);
+        }
+
+        while (_table.Play());
+
+        if (_table.Balance > 0)
+        {
+            var name = _io.ReadString(Prompts.Check);
+            _io.Write(Strings.Check(_random, name, _table.Balance));
+        }
+        else
+        {
+            _io.Write(Streams.Thanks);
+        }
     }
+}
+
+internal class Wheel
+{
+    private static readonly ImmutableArray<Slot> _slots = ImmutableArray.Create(
+        new Slot(Strings.Red(1)),
+        new Slot(Strings.Black(2)),
+        new Slot(Strings.Red(3)),
+        new Slot(Strings.Black(4)),
+        new Slot(Strings.Red(5)),
+        new Slot(Strings.Black(6)),
+        new Slot(Strings.Red(7)),
+        new Slot(Strings.Black(8)),
+        new Slot(Strings.Red(9)),
+        new Slot(Strings.Black(10)),
+        new Slot(Strings.Black(11)),
+        new Slot(Strings.Red(12)),
+        new Slot(Strings.Black(13)),
+        new Slot(Strings.Red(14)),
+        new Slot(Strings.Black(15)),
+        new Slot(Strings.Red(16)),
+        new Slot(Strings.Black(17)),
+        new Slot(Strings.Red(18)),
+        new Slot(Strings.Red(19)),
+        new Slot(Strings.Black(20)),
+        new Slot(Strings.Red(21)),
+        new Slot(Strings.Black(22)),
+        new Slot(Strings.Red(23)),
+        new Slot(Strings.Black(24)),
+        new Slot(Strings.Red(25)),
+        new Slot(Strings.Black(26)),
+        new Slot(Strings.Red(27)),
+        new Slot(Strings.Black(28)),
+        new Slot(Strings.Black(29)),
+        new Slot(Strings.Red(30)),
+        new Slot(Strings.Black(31)),
+        new Slot(Strings.Red(32)),
+        new Slot(Strings.Black(33)),
+        new Slot(Strings.Red(34)),
+        new Slot(Strings.Black(35)),
+        new Slot(Strings.Red(36)),
+        new Slot("0"),
+        new Slot("00"));
+    
+    private readonly IRandom _random;
+
+    public Wheel(IRandom random) => _random = random;
+
+    public Slot Spin() => _slots[_random.Next(_slots.Length)];
+}
+
+internal record struct Slot(string Name);
+
+internal record struct Bet(int Number, int Amount)
+{
+    public Bet(int number) : this(number, 0) { }
+
+    public bool Equals(Bet? other) => Number == other?.Number;
+}
+
+public class Table
+{
+    private readonly IReadWrite _io;
+    private readonly Wheel _wheel;
+
+    private int _houseBalance = 100_000;
+    private int _playerBalance = 1_000;
+
+    public Table(IReadWrite io, IRandom random)
+    {
+        _io = io;
+        _wheel = new(random);
+    }
+
+    public int Balance => _playerBalance;
+
+    public bool Play()
+    {
+        var betCount = _io.ReadBetCount();
+        var bets = new HashSet<Bet>();
+        for (int i = 0; i < betCount; i++)
+        {
+            while (!bets.Add(_io.ReadBet(i)))
+            {
+                _io.Write(Streams.BetAlready);
+            }
+        }
+        
+        return _io.ReadString(Prompts.Again).ToLowerInvariant().StartsWith('y');
+    }
+}
+
+internal static class IOExtensions
+{
+    internal static int ReadBetCount(this IReadWrite io)
+    {
+        while (true)
+        {
+            var betCount = io.ReadNumber(Prompts.HowManyBets);
+            if (betCount.IsValidInt(1)) { return (int)betCount; }
+        }
+    }
+
+    internal static Bet ReadBet(this IReadWrite io, int number)
+    {
+        while (true)
+        {
+            var (bet, amount) = io.Read2Numbers(Prompts.Bet(number));
+
+            if (bet.IsValidInt(1, 50) && amount.IsValidInt(5, 500))
+            {
+                return new((int)bet, (int)amount);
+            }
+        }
+    }
+
+    internal static bool IsValidInt(this float value, int minValue, int maxValue = int.MaxValue)
+        => value == (int)value && value >= minValue && value <= maxValue;
 }
\ No newline at end of file