diff --git a/16_Bug/csharp/Bug.cs b/16_Bug/csharp/Bug.cs
new file mode 100644
index 00000000..42e686d4
--- /dev/null
+++ b/16_Bug/csharp/Bug.cs
@@ -0,0 +1,21 @@
+using System.Text;
+using BugGame.Parts;
+using BugGame.Resources;
+
+namespace BugGame;
+
+internal class Bug
+{
+    private readonly Body _body = new();
+
+    public bool IsComplete => _body.IsComplete;
+
+    public bool TryAdd(IPart part, out Message message) => _body.TryAdd(part, out message);
+
+    public string ToString(string pronoun, char feelerCharacter)
+    {
+        var builder = new StringBuilder($"*****{pronoun} Bug*****").AppendLine().AppendLine().AppendLine();
+        _body.AppendTo(builder, feelerCharacter);
+        return builder.ToString();
+    }
+}
\ No newline at end of file
diff --git a/16_Bug/csharp/Bug.csproj b/16_Bug/csharp/Bug.csproj
index d3fe4757..91e759c0 100644
--- a/16_Bug/csharp/Bug.csproj
+++ b/16_Bug/csharp/Bug.csproj
@@ -6,4 +6,13 @@
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Include="Resources/*.txt" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\00_Common\dotnet\Games.Common\Games.Common.csproj" />
+  </ItemGroup>
+
 </Project>
diff --git a/16_Bug/csharp/Game.cs b/16_Bug/csharp/Game.cs
new file mode 100644
index 00000000..a8989a4c
--- /dev/null
+++ b/16_Bug/csharp/Game.cs
@@ -0,0 +1,86 @@
+using BugGame.Parts;
+using BugGame.Resources;
+using Games.Common.IO;
+using Games.Common.Randomness;
+using static System.StringComparison;
+namespace BugGame;
+
+internal class Game
+{
+    private readonly IReadWrite _io;
+    private readonly IRandom _random;
+
+    public Game(IReadWrite io, IRandom random)
+    {
+        _io = io;
+        _random = random;
+    }
+
+    public void Play()
+    {
+        _io.Write(Resource.Streams.Introduction);
+        if (!_io.ReadString("Do you want instructions").Equals("no", InvariantCultureIgnoreCase))
+        {
+            _io.Write(Resource.Streams.Instructions);
+        }
+
+        BuildBugs();
+
+        _io.Write(Resource.Streams.PlayAgain);
+    }
+
+    private void BuildBugs()
+    {
+        var yourBug = new Bug();
+        var myBug = new Bug();
+
+        while (true)
+        {
+            var partAdded = TryBuild(yourBug, m => m.You);
+            Thread.Sleep(500);
+            _io.WriteLine();
+            partAdded |= TryBuild(myBug, m => m.I);
+
+            if (partAdded)
+            {
+                if (yourBug.IsComplete) { _io.WriteLine("Your bug is finished."); }
+                if (myBug.IsComplete) { _io.WriteLine("My bug is finished."); }
+
+                if (!_io.ReadString("Do you want the picture").Equals("no", InvariantCultureIgnoreCase))
+                {
+                    _io.Write(yourBug.ToString("Your", 'A'));
+                    _io.WriteLine();
+                    _io.WriteLine();
+                    _io.WriteLine();
+                    _io.WriteLine();
+                    _io.Write(myBug.ToString("My", 'F'));
+                }
+            }
+
+            if (yourBug.IsComplete || myBug.IsComplete) { break; }
+        }
+    }
+
+    private bool TryBuild(Bug bug, Func<Message, string> messageTransform)
+    {
+        var roll = _random.Next(6) + 1;
+        _io.WriteLine(messageTransform(Message.Rolled.ForValue(roll)));
+
+        IPart part = roll switch
+        {
+            1 => new Body(),
+            2 => new Neck(),
+            3 => new Head(),
+            4 => new Feeler(),
+            5 => new Tail(),
+            6 => new Leg(),
+            _ => throw new Exception("Unexpected roll value")
+        };
+        _io.WriteLine($"{roll}={part.GetType().Name}");
+
+        var partAdded = bug.TryAdd(part, out var message);
+        _io.WriteLine(messageTransform.Invoke(message));
+
+        return partAdded;
+    }
+}
\ No newline at end of file
diff --git a/16_Bug/csharp/Parts/Body.cs b/16_Bug/csharp/Parts/Body.cs
new file mode 100644
index 00000000..58f80405
--- /dev/null
+++ b/16_Bug/csharp/Parts/Body.cs
@@ -0,0 +1,44 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Body : ParentPart
+{
+    private readonly Neck _neck = new();
+    private readonly Tail _tail = new();
+    private readonly Legs _legs = new();
+
+    public Body()
+        : base(Message.BodyAdded, Message.BodyNotNeeded)
+    {
+    }
+
+    public override bool IsComplete => _neck.IsComplete && _tail.IsComplete && _legs.IsComplete;
+
+    protected override bool TryAddCore(IPart part, out Message message)
+        => part switch
+        {
+            Neck => _neck.TryAdd(out message),
+            Head or Feeler => _neck.TryAdd(part, out message),
+            Tail => _tail.TryAdd(out message),
+            Leg => _legs.TryAddOne(out message),
+            _ => throw new NotSupportedException($"Can't add a {part.Name} to a {Name}.")
+        };
+
+    public void AppendTo(StringBuilder builder, char feelerCharacter)
+    {
+        if (IsPresent)
+        {
+            _neck.AppendTo(builder, feelerCharacter);
+            builder
+                .AppendLine("     BBBBBBBBBBBB")
+                .AppendLine("     B          B")
+                .AppendLine("     B          B");
+            _tail.AppendTo(builder);
+            builder
+                .AppendLine("     BBBBBBBBBBBB");
+            _legs.AppendTo(builder);
+        }
+    }
+}
diff --git a/16_Bug/csharp/Parts/Feeler.cs b/16_Bug/csharp/Parts/Feeler.cs
new file mode 100644
index 00000000..9508d541
--- /dev/null
+++ b/16_Bug/csharp/Parts/Feeler.cs
@@ -0,0 +1,6 @@
+namespace BugGame.Parts;
+
+internal class Feeler : IPart
+{
+    public string Name => nameof(Feeler);
+}
diff --git a/16_Bug/csharp/Parts/Feelers.cs b/16_Bug/csharp/Parts/Feelers.cs
new file mode 100644
index 00000000..165a073d
--- /dev/null
+++ b/16_Bug/csharp/Parts/Feelers.cs
@@ -0,0 +1,14 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Feelers : PartCollection
+{
+    public Feelers()
+        : base(2, Message.FeelerAdded, Message.FeelersFull)
+    {
+    }
+
+    public void AppendTo(StringBuilder builder, char character) => AppendTo(builder, 10, 4, character);
+}
diff --git a/16_Bug/csharp/Parts/Head.cs b/16_Bug/csharp/Parts/Head.cs
new file mode 100644
index 00000000..d7135575
--- /dev/null
+++ b/16_Bug/csharp/Parts/Head.cs
@@ -0,0 +1,38 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Head : ParentPart
+{
+    private Feelers _feelers = new();
+
+    public Head()
+        : base(Message.HeadAdded, Message.HeadNotNeeded)
+    {
+    }
+
+    public override bool IsComplete => _feelers.IsComplete;
+
+    protected override bool TryAddCore(IPart part, out Message message)
+        => part switch
+        {
+            Feeler => _feelers.TryAddOne(out message),
+            _ => throw new NotSupportedException($"Can't add a {part.Name} to a {Name}.")
+        };
+
+    public void AppendTo(StringBuilder builder, char feelerCharacter)
+    {
+        if (IsPresent)
+        {
+            _feelers.AppendTo(builder, feelerCharacter);
+            builder
+                .AppendLine("        HHHHHHH")
+                .AppendLine("        H     H")
+                .AppendLine("        H O O H")
+                .AppendLine("        H     H")
+                .AppendLine("        H  V  H")
+                .AppendLine("        HHHHHHH");
+        }
+    }
+}
diff --git a/16_Bug/csharp/Parts/IPart.cs b/16_Bug/csharp/Parts/IPart.cs
new file mode 100644
index 00000000..e325a7c1
--- /dev/null
+++ b/16_Bug/csharp/Parts/IPart.cs
@@ -0,0 +1,6 @@
+namespace BugGame.Parts;
+
+internal interface IPart
+{
+    string Name { get; }
+}
diff --git a/16_Bug/csharp/Parts/Leg.cs b/16_Bug/csharp/Parts/Leg.cs
new file mode 100644
index 00000000..c2d4aaaf
--- /dev/null
+++ b/16_Bug/csharp/Parts/Leg.cs
@@ -0,0 +1,6 @@
+namespace BugGame.Parts;
+
+internal class Leg : IPart
+{
+    public string Name => nameof(Leg);
+}
diff --git a/16_Bug/csharp/Parts/Legs.cs b/16_Bug/csharp/Parts/Legs.cs
new file mode 100644
index 00000000..0ed8d8fc
--- /dev/null
+++ b/16_Bug/csharp/Parts/Legs.cs
@@ -0,0 +1,14 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Legs : PartCollection
+{
+    public Legs()
+        : base(6, Message.LegAdded, Message.LegsFull)
+    {
+    }
+
+    public void AppendTo(StringBuilder builder) => AppendTo(builder, 6, 2, 'L');
+}
diff --git a/16_Bug/csharp/Parts/Neck.cs b/16_Bug/csharp/Parts/Neck.cs
new file mode 100644
index 00000000..23dacfb7
--- /dev/null
+++ b/16_Bug/csharp/Parts/Neck.cs
@@ -0,0 +1,33 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Neck : ParentPart
+{
+    private Head _head = new();
+
+    public Neck()
+        : base(Message.NeckAdded, Message.NeckNotNeeded)
+    {
+    }
+
+    public override bool IsComplete => _head.IsComplete;
+
+    protected override bool TryAddCore(IPart part, out Message message)
+        => part switch
+        {
+            Head => _head.TryAdd(out message),
+            Feeler => _head.TryAdd(part, out message),
+            _ => throw new NotSupportedException($"Can't add a {part.Name} to a {Name}.")
+        };
+
+    public void AppendTo(StringBuilder builder, char feelerCharacter)
+    {
+        if (IsPresent)
+        {
+            _head.AppendTo(builder, feelerCharacter);
+            builder.AppendLine("          N N").AppendLine("          N N");
+        }
+    }
+}
diff --git a/16_Bug/csharp/Parts/ParentPart.cs b/16_Bug/csharp/Parts/ParentPart.cs
new file mode 100644
index 00000000..1ca6682f
--- /dev/null
+++ b/16_Bug/csharp/Parts/ParentPart.cs
@@ -0,0 +1,27 @@
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal abstract class ParentPart : Part
+{
+    public ParentPart(Message addedMessage, Message duplicateMessage)
+        : base(addedMessage, duplicateMessage)
+    {
+    }
+
+    public bool TryAdd(IPart part, out Message message)
+        => (part.GetType() == GetType(), IsPresent) switch
+        {
+            (true, _) => TryAdd(out message),
+            (false, false) => ReportDoNotHave(out message),
+            _ => TryAddCore(part, out message)
+        };
+
+    protected abstract bool TryAddCore(IPart part, out Message message);
+
+    private bool ReportDoNotHave(out Message message)
+    {
+        message = Message.DoNotHaveA(this);
+        return false;
+    }
+}
diff --git a/16_Bug/csharp/Parts/Part.cs b/16_Bug/csharp/Parts/Part.cs
new file mode 100644
index 00000000..f29fbd81
--- /dev/null
+++ b/16_Bug/csharp/Parts/Part.cs
@@ -0,0 +1,34 @@
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Part : IPart
+{
+    private readonly Message _addedMessage;
+    private readonly Message _duplicateMessage;
+
+    public Part(Message addedMessage, Message duplicateMessage)
+    {
+        _addedMessage = addedMessage;
+        _duplicateMessage = duplicateMessage;
+    }
+
+    public virtual bool IsComplete => IsPresent;
+
+    protected bool IsPresent { get; private set; }
+
+    public string Name => GetType().Name;
+
+    public bool TryAdd(out Message message)
+    {
+        if (IsPresent)
+        {
+            message = _duplicateMessage;
+            return false;
+        }
+
+        message = _addedMessage;
+        IsPresent = true;
+        return true;
+    }
+}
diff --git a/16_Bug/csharp/Parts/PartCollection.cs b/16_Bug/csharp/Parts/PartCollection.cs
new file mode 100644
index 00000000..9a0fd2ee
--- /dev/null
+++ b/16_Bug/csharp/Parts/PartCollection.cs
@@ -0,0 +1,50 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class PartCollection
+{
+    private readonly int _maxCount;
+    private readonly Message _addedMessage;
+    private readonly Message _fullMessage;
+    private int _count;
+
+    public PartCollection(int maxCount, Message addedMessage, Message fullMessage)
+    {
+        _maxCount = maxCount;
+        _addedMessage = addedMessage;
+        _fullMessage = fullMessage;
+    }
+
+    public bool IsComplete => _count == _maxCount;
+
+    public bool TryAddOne(out Message message)
+    {
+        if (_count < _maxCount)
+        {
+            _count++;
+            message = _addedMessage.ForValue(_count);
+            return true;
+        }
+
+        message = _fullMessage;
+        return false;
+    }
+
+    protected void AppendTo(StringBuilder builder, int offset, int length, char character)
+    {
+        if (_count == 0) { return; }
+
+        for (var i = 0; i < length; i++)
+        {
+            builder.Append(' ', offset);
+
+            for (var j = 0; j < _count; j++)
+            {
+                builder.Append(character).Append(' ');
+            }
+            builder.AppendLine();
+        }
+    }
+}
diff --git a/16_Bug/csharp/Parts/Tail.cs b/16_Bug/csharp/Parts/Tail.cs
new file mode 100644
index 00000000..ebf4b28f
--- /dev/null
+++ b/16_Bug/csharp/Parts/Tail.cs
@@ -0,0 +1,20 @@
+using System.Text;
+using BugGame.Resources;
+
+namespace BugGame.Parts;
+
+internal class Tail : Part
+{
+    public Tail()
+        : base(Message.TailAdded, Message.TailNotNeeded)
+    {
+    }
+
+    public void AppendTo(StringBuilder builder)
+    {
+        if (IsPresent)
+        {
+            builder.AppendLine("TTTTTB          B");
+        }
+    }
+}
\ No newline at end of file
diff --git a/16_Bug/csharp/Program.cs b/16_Bug/csharp/Program.cs
new file mode 100644
index 00000000..883e62d1
--- /dev/null
+++ b/16_Bug/csharp/Program.cs
@@ -0,0 +1,5 @@
+using BugGame;
+using Games.Common.IO;
+using Games.Common.Randomness;
+
+new Game(new ConsoleIO(), new RandomNumberGenerator()).Play();
diff --git a/16_Bug/csharp/Resources/Instructions.txt b/16_Bug/csharp/Resources/Instructions.txt
new file mode 100644
index 00000000..bdbdadd3
--- /dev/null
+++ b/16_Bug/csharp/Resources/Instructions.txt
@@ -0,0 +1,18 @@
+The object of Bug is to finish your bug before I finish
+mine. Each number stands for a part of the bug body.
+I will roll the die for you, tell you what I rolled for you
+what the number stands for, and if you can get the part.
+If you can get the part I will give it to you.
+The same will happen on my turn.
+If there is a change in either bug I will give you the
+option of seeing the pictures of the bugs.
+The numbers stand for parts as follows:
+Number        Part          Number of part needed
+ 1            Body           1
+ 2            Neck           1
+ 3            Head           1
+ 4            Feelers        2
+ 5            Tail           1
+ 6            Legs           6
+
+
diff --git a/16_Bug/csharp/Resources/Introduction.txt b/16_Bug/csharp/Resources/Introduction.txt
new file mode 100644
index 00000000..e74a833e
--- /dev/null
+++ b/16_Bug/csharp/Resources/Introduction.txt
@@ -0,0 +1,8 @@
+                                Bug
+               Creative Computing  Morristown, New Jersey
+
+
+
+The Game Bug
+I hope you enjoy this game.
+
diff --git a/16_Bug/csharp/Resources/Message.cs b/16_Bug/csharp/Resources/Message.cs
new file mode 100644
index 00000000..20a59d9a
--- /dev/null
+++ b/16_Bug/csharp/Resources/Message.cs
@@ -0,0 +1,46 @@
+using BugGame.Parts;
+
+namespace BugGame.Resources;
+
+internal class Message
+{
+    public static Message Rolled = new("rolled a {0}");
+
+    public static Message BodyAdded = new("now have a body.");
+    public static Message BodyNotNeeded = new("do not need a body.");
+
+    public static Message NeckAdded = new("now have a neck.");
+    public static Message NeckNotNeeded = new("do not need a neck.");
+
+    public static Message HeadAdded = new("needed a head.");
+    public static Message HeadNotNeeded = new("I do not need a head.", "You have a head.");
+
+    public static Message TailAdded = new("I now have a tail.", "I now give you a tail.");
+    public static Message TailNotNeeded = new("I do not need a tail.", "You already have a tail.");
+
+    public static Message FeelerAdded = new("I get a feeler.", "I now give you a feeler");
+    public static Message FeelersFull = new("I have 2 feelers already.", "You have two feelers already");
+
+    public static Message LegAdded = new("now have {0} legs");
+    public static Message LegsFull = new("I have 6 feet.", "You have 6 feet already");
+
+    public static Message Complete = new("bug is finished.");
+
+    private Message(string common)
+        : this("I " + common, "You " + common)
+    {
+    }
+
+    private Message(string i, string you)
+    {
+        I = i;
+        You = you;
+    }
+
+    public string I { get; }
+    public string You { get; }
+
+    public static Message DoNotHaveA(Part part) => new($"do not have a {part.Name}");
+
+    public Message ForValue(int quantity) => new(string.Format(I, quantity), string.Format(You, quantity));
+}
\ No newline at end of file
diff --git a/16_Bug/csharp/Resources/PlayAgain.txt b/16_Bug/csharp/Resources/PlayAgain.txt
new file mode 100644
index 00000000..2380e130
--- /dev/null
+++ b/16_Bug/csharp/Resources/PlayAgain.txt
@@ -0,0 +1 @@
+I hope you enjoyed the game, play it again soon!!
diff --git a/16_Bug/csharp/Resources/Resource.cs b/16_Bug/csharp/Resources/Resource.cs
new file mode 100644
index 00000000..2b34a4e6
--- /dev/null
+++ b/16_Bug/csharp/Resources/Resource.cs
@@ -0,0 +1,19 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+namespace BugGame.Resources;
+
+internal static class Resource
+{
+    internal static class Streams
+    {
+        public static Stream Introduction => GetStream();
+        public static Stream Instructions => GetStream();
+        public static Stream PlayAgain => GetStream();
+    }
+
+    private static Stream GetStream([CallerMemberName] string? name = null) =>
+        Assembly.GetExecutingAssembly()
+            .GetManifestResourceStream($"Bug.Resources.{name}.txt")
+            ?? throw new Exception($"Could not find embedded resource stream '{name}'.");
+}
\ No newline at end of file