diff --git a/25_Chief/csharp/Chief.csproj b/25_Chief/csharp/Chief.csproj
index 2e7a4432..3870320c 100644
--- a/25_Chief/csharp/Chief.csproj
+++ b/25_Chief/csharp/Chief.csproj
@@ -7,6 +7,10 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <EmbeddedResource Include="Resources/*.txt" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\..\00_Common\dotnet\Games.Common\Games.Common.csproj" />
   </ItemGroup>
diff --git a/25_Chief/csharp/Game.cs b/25_Chief/csharp/Game.cs
index 29f3fec6..95839cb5 100644
--- a/25_Chief/csharp/Game.cs
+++ b/25_Chief/csharp/Game.cs
@@ -1,3 +1,6 @@
+using Chief.Resources;
+using static Chief.Resources.Resource;
+
 namespace Chief;
 
 internal class Game
@@ -11,6 +14,42 @@ internal class Game
 
     internal void Play()
     {
+        _io.Write(Streams.Title);
+        if (!_io.ReadYes(Prompts.Ready))
+        {
+            _io.Write(Streams.ShutUp);
+        }
 
+        _io.Write(Streams.Instructions);
+
+        var result = _io.ReadNumber(Prompts.Answer);
+
+        if (_io.ReadYes(Formats.Bet, (result + 1 - 5) * 5 / 8 * 5 - 3))
+        {
+            _io.Write(Streams.Bye);
+            return;
+        }
+
+        var original = _io.ReadNumber(Prompts.Original);
+
+        _io.WriteLine(Formats.Working, GetStepValues(original).ToArray());
+
+        if (_io.ReadYes(Prompts.Believe))
+        {
+            _io.Write(Streams.Bye);
+            return;
+        }
+
+        _io.Write(Streams.Lightning);
     }
-}
\ No newline at end of file
+
+    private static IEnumerable<object> GetStepValues(float value)
+    {
+        yield return value;
+        yield return value += 3;
+        yield return value /= 5;
+        yield return value *= 8;
+        yield return value = value / 5 + 5;
+        yield return value - 1;
+    }
+}
diff --git a/25_Chief/csharp/IReadWriteExtensions.cs b/25_Chief/csharp/IReadWriteExtensions.cs
new file mode 100644
index 00000000..e69de29b
diff --git a/25_Chief/csharp/Resources/Resource.cs b/25_Chief/csharp/Resources/Resource.cs
index 637a4983..4255d6c6 100644
--- a/25_Chief/csharp/Resources/Resource.cs
+++ b/25_Chief/csharp/Resources/Resource.cs
@@ -36,6 +36,6 @@ internal static class Resource
     }
 
     private static Stream GetStream([CallerMemberName] string? name = null)
-        => Assembly.GetExecutingAssembly().GetManifestResourceStream($"Stars.Resources.{name}.txt")
+        => Assembly.GetExecutingAssembly().GetManifestResourceStream($"Chief.Resources.{name}.txt")
             ?? throw new ArgumentException($"Resource stream {name} does not exist", nameof(name));
 }
\ No newline at end of file