diff --git a/77_Salvo/csharp/Extensions/IOExtensions.cs b/77_Salvo/csharp/Extensions/IOExtensions.cs
index b9eaa2c4..6d021deb 100644
--- a/77_Salvo/csharp/Extensions/IOExtensions.cs
+++ b/77_Salvo/csharp/Extensions/IOExtensions.cs
@@ -12,7 +12,7 @@ internal static class IOExtensions
             { 
                 return position; 
             }
-            io.WriteLine("ILLEGAL, ENTER AGAIN.");
+            io.Write(Streams.Illegal);
         }
     }
 
diff --git a/77_Salvo/csharp/Game.cs b/77_Salvo/csharp/Game.cs
index 2afac1bd..2f3ebe8e 100644
--- a/77_Salvo/csharp/Game.cs
+++ b/77_Salvo/csharp/Game.cs
@@ -29,50 +29,48 @@ internal class Game
         var computerGrid = new Grid(_random);
         var humanGrid = new Grid(_io);
         var humanShotSelector = new HumanShotSelector(humanGrid, computerGrid);
-        var startResponse = _io.ReadString("DO YOU WANT TO START");
-        while (startResponse == "WHERE ARE YOUR SHIPS?")
+        var startResponse = _io.ReadString(Prompts.Start);
+        while (startResponse == Strings.WhereAreYourShips)
         {
             foreach (var ship in computerGrid.Ships)
             {
                 _io.WriteLine(ship);
             }
-            startResponse = _io.ReadString("DO YOU WANT TO START");
+            startResponse = _io.ReadString(Prompts.Start);
         }
 L1890:  var turnNumber=0;
-L1900:  var seeShotsResponse = _io.ReadString("DO YOU WANT TO SEE MY SHOTS");
+L1900:  var seeShotsResponse = _io.ReadString(Prompts.SeeShots);
 L1920:  _io.WriteLine();
 L1930:  if (startResponse != "YES") { goto L2620; }
 L1950:  if (startResponse != "YES") { goto L1990; }
 L1960:  turnNumber++;
-L1970:  _io.WriteLine();
-L1980:  _io.WriteLine($"TURN {turnNumber}");
-L1990:  var maxShotCount = humanShotSelector.GetShotCount();
-L2220:  _io.WriteLine($"YOU HAVE {maxShotCount} SHOTS.");
-        if (maxShotCount == 0) { goto L2270; }
-L2230:  if (maxShotCount > computerGrid.UntriedSquareCount) 
+L1980:  _io.Write(Strings.Turn(turnNumber));
+L1990:  var numberOfShots = humanShotSelector.GetShotCount();
+L2220:  _io.Write(Strings.YouHaveShots(numberOfShots));
+        if (numberOfShots == 0) { goto L2270; }
+L2230:  if (numberOfShots > computerGrid.UntriedSquareCount) 
         { 
-            _io.WriteLine("YOU HAVE MORE SHOTS THAN THERE ARE BLANK SQUARES.");
+            _io.WriteLine(Streams.YouHaveMoreShotsThanSquares);
 L2250:      goto L2890;
         }
         foreach (var shot1 in humanShotSelector.GetShots(_io))
         {
             if (computerGrid.IsHit(shot1, turnNumber, out var shipName))
             {
-                _io.WriteLine($"YOU HIT MY {shipName}.");
+                _io.Write(Strings.YouHit(shipName));
             }
         }
 L2620:  if (startResponse == "YES") { goto L2670; }
 L2640:  turnNumber++;
-L2650:  _io.WriteLine();
-L2660:  _io.WriteLine($"TURN {turnNumber}");
-L2670:  maxShotCount = computerGrid.Ships.Sum(s => s.Shots);
-L2840:  _io.WriteLine($"I HAVE {maxShotCount} SHOTS.");
-L2850:  if (humanGrid.UntriedSquareCount > maxShotCount) { goto L2880; }
-L2860:  _io.WriteLine("I HAVE MORE SHOTS THAN BLANK SQUARES.");
-L2270:  _io.WriteLine("I HAVE WON.");
+L2660:  _io.Write(Strings.Turn(turnNumber));
+L2670:  numberOfShots = computerGrid.Ships.Sum(s => s.Shots);
+L2840:  _io.Write(Strings.IHaveShots(numberOfShots));
+L2850:  if (humanGrid.UntriedSquareCount > numberOfShots) { goto L2880; }
+L2860:  _io.Write(Streams.IHaveMoreShotsThanSquares);
+L2270:  _io.Write(Streams.IWon);
         return;
-L2880:  if (maxShotCount != 0) { goto L2960; }
-L2890:  _io.WriteLine("YOU HAVE WON.");
+L2880:  if (numberOfShots != 0) { goto L2960; }
+L2890:  _io.Write(Streams.YouWon);
 L2900:  return;
 
 L2960:  for (var i = 1; i <= 12; i++)
@@ -91,7 +89,7 @@ L3070:  shot = shot.BringIntoRange(_random);
 L3170:  goto L3270;
         // record shot
 L3180:  temp[shotCount]=shot;
-L3200:  if (shotCount==maxShotCount) { goto L3380; }
+L3200:  if (shotCount==numberOfShots) { goto L3380; }
 L3210:  if (strategyNumber==6) { goto L3030; }
 L3240:  //DATA 1,1,-1,1,1,-3,1,1,0,2,-1,1
         var data = new Offset[] { new(1,1),new(-1,1),new(1,-3),new(1,1),new(0,2),new(-1,1) };
@@ -111,11 +109,11 @@ L3360:  shotCount++;
 L3370:  goto L3180;
         // display shots
 L3380:  if (seeShotsResponse != "YES") { goto L3420; }
-L3390:  for (var i = 1; i <= maxShotCount; i++)
+L3390:  for (var i = 1; i <= numberOfShots; i++)
         {
 L3400:      _io.WriteLine(temp[i]);
         }
-L3420:  for (var i = 1; i <= maxShotCount; i++)
+L3420:  for (var i = 1; i <= numberOfShots; i++)
         {
 L3430:      if (humanGrid[temp[i]] == 3) 
             { 
@@ -197,22 +195,22 @@ L3860:  for (var i = 1; i <= 12; i++)
                 }
             }
         }
-L4030:  for (var i = 1; i <= maxShotCount; i++)
+L4030:  for (var i = 1; i <= numberOfShots; i++)
         {
 L4040:      temp[i]=i;
         }
         foreach (var position in Position.All)
         {
 L4090:      var Q9=1;
-L4100:      for (var i = 1; i <= maxShotCount; i++)
+L4100:      for (var i = 1; i <= numberOfShots; i++)
             {
 L4110:          if (tempGrid[temp[i]]>=tempGrid[temp[Q9]]) { continue; }
 L4120:          Q9=i;
             }
-L4131:      if (position.X>maxShotCount) { goto L4140; }
+L4131:      if (position.X>numberOfShots) { goto L4140; }
 L4132:      if (position.IsOnDiagonal) { goto L4210; }
 L4140:      if (tempGrid[position]<tempGrid[temp[Q9]]) { goto L4210; }
-L4150:      for (var i = 1; i <= maxShotCount; i++)
+L4150:      for (var i = 1; i <= numberOfShots; i++)
             {
 L4160:          if (temp[i].X != position.X) { break; }
 L4170:          if (temp[i].Y == position.Y) { goto L4210; }
diff --git a/77_Salvo/csharp/Grid.cs b/77_Salvo/csharp/Grid.cs
index c3d04dff..85e3f387 100644
--- a/77_Salvo/csharp/Grid.cs
+++ b/77_Salvo/csharp/Grid.cs
@@ -1,4 +1,5 @@
 using System.Collections.Immutable;
+using System.Diagnostics.CodeAnalysis;
 
 namespace Salvo;
 
@@ -14,7 +15,7 @@ internal class Grid
 
     internal Grid(IReadWrite io)
     {
-        io.WriteLine("ENTER COORDINATES FOR...");
+        io.WriteLine(Prompts.Coordinates);
         _ships = new()
         {
             new Battleship(io),
@@ -74,13 +75,14 @@ internal class Grid
     internal bool WasTargetedAt(Position position, out int turnTargeted)
         => _shots.TryGetValue(position, out turnTargeted);
 
-    internal bool IsHit(Position position, int turnNumber, out string? shipName)
+    internal bool IsHit(Position position, int turnNumber, [NotNullWhen(true)] out string? shipName)
     {
         shipName = null;
         _shots[position] = turnNumber;
         
         var ship = _ships.FirstOrDefault(s => s.IsHit(position));
         if (ship == null) { return false; }
+        shipName = ship.Name;
 
         if (ship.IsDestroyed) { _ships.Remove(ship); }
 
diff --git a/77_Salvo/csharp/Resources/Coordinates.txt b/77_Salvo/csharp/Resources/Coordinates.txt
new file mode 100644
index 00000000..387d7a6b
--- /dev/null
+++ b/77_Salvo/csharp/Resources/Coordinates.txt
@@ -0,0 +1 @@
+Enter coordinates for...
diff --git a/77_Salvo/csharp/Resources/IHaveMoreShotsThanSquares.txt b/77_Salvo/csharp/Resources/IHaveMoreShotsThanSquares.txt
new file mode 100644
index 00000000..a6f37110
--- /dev/null
+++ b/77_Salvo/csharp/Resources/IHaveMoreShotsThanSquares.txt
@@ -0,0 +1 @@
+I have more shots than blank squares.
diff --git a/77_Salvo/csharp/Resources/IHaveShots.txt b/77_Salvo/csharp/Resources/IHaveShots.txt
new file mode 100644
index 00000000..9157e1a7
--- /dev/null
+++ b/77_Salvo/csharp/Resources/IHaveShots.txt
@@ -0,0 +1 @@
+I have {0} shots.
diff --git a/77_Salvo/csharp/Resources/IHit.txt b/77_Salvo/csharp/Resources/IHit.txt
new file mode 100644
index 00000000..a3f3dccf
--- /dev/null
+++ b/77_Salvo/csharp/Resources/IHit.txt
@@ -0,0 +1 @@
+I hot your {0}
diff --git a/77_Salvo/csharp/Resources/IWon.txt b/77_Salvo/csharp/Resources/IWon.txt
new file mode 100644
index 00000000..b3f50634
--- /dev/null
+++ b/77_Salvo/csharp/Resources/IWon.txt
@@ -0,0 +1 @@
+I have won.
diff --git a/77_Salvo/csharp/Resources/Illegal.txt b/77_Salvo/csharp/Resources/Illegal.txt
new file mode 100644
index 00000000..6a71787a
--- /dev/null
+++ b/77_Salvo/csharp/Resources/Illegal.txt
@@ -0,0 +1 @@
+Illegal, enter again.
diff --git a/77_Salvo/csharp/Resources/Resource.cs b/77_Salvo/csharp/Resources/Resource.cs
index 0cc55034..c3a0d8ca 100644
--- a/77_Salvo/csharp/Resources/Resource.cs
+++ b/77_Salvo/csharp/Resources/Resource.cs
@@ -8,13 +8,32 @@ internal static class Resource
     internal static class Streams
     {
         public static Stream Title => GetStream();
+        public static Stream YouHaveMoreShotsThanSquares => GetStream();
+        public static Stream YouWon => GetStream();
+        public static Stream IHaveMoreShotsThanSquares => GetStream();
+        public static Stream IWon => GetStream();
+        public static Stream Illegal => GetStream();
+    }
+
+    internal static class Strings
+    {
+        public static string WhereAreYourShips => GetString();
+        public static string YouHaveShots(int number) => Format(number);
+        public static string IHaveShots(int number) => Format(number);
+        public static string YouHit(string shipName) => Format(shipName);
+        public static string ShotBefore(int turnNumber) => Format(turnNumber);
+        public static string Turn(int number) => Format(number);
     }
 
     internal static class Prompts
     {
+        public static string Coordinates => GetString();
+        public static string Start => GetString();
+        public static string SeeShots => GetString();
     }
 
-    private static string GetPrompt([CallerMemberName] string? name = null) => GetString($"{name}Prompt");
+    private static string Format<T>(T value, [CallerMemberName] string? name = null) 
+        => string.Format(GetString(name), value);
 
     private static string GetString([CallerMemberName] string? name = null)
     {
diff --git a/77_Salvo/csharp/Resources/SeeShots.txt b/77_Salvo/csharp/Resources/SeeShots.txt
new file mode 100644
index 00000000..7f608b0b
--- /dev/null
+++ b/77_Salvo/csharp/Resources/SeeShots.txt
@@ -0,0 +1 @@
+Do you want to see my shots
\ No newline at end of file
diff --git a/77_Salvo/csharp/Resources/ShotBefore.txt b/77_Salvo/csharp/Resources/ShotBefore.txt
new file mode 100644
index 00000000..18e90fcb
--- /dev/null
+++ b/77_Salvo/csharp/Resources/ShotBefore.txt
@@ -0,0 +1 @@
+You shot there before on turn {0}
diff --git a/77_Salvo/csharp/Resources/Start.txt b/77_Salvo/csharp/Resources/Start.txt
new file mode 100644
index 00000000..283a0fbb
--- /dev/null
+++ b/77_Salvo/csharp/Resources/Start.txt
@@ -0,0 +1 @@
+Do you want to start
\ No newline at end of file
diff --git a/77_Salvo/csharp/Resources/Turn.txt b/77_Salvo/csharp/Resources/Turn.txt
new file mode 100644
index 00000000..14bf316e
--- /dev/null
+++ b/77_Salvo/csharp/Resources/Turn.txt
@@ -0,0 +1,2 @@
+
+Turn {0}
diff --git a/77_Salvo/csharp/Resources/WhereAreYourShips.txt b/77_Salvo/csharp/Resources/WhereAreYourShips.txt
new file mode 100644
index 00000000..797c1144
--- /dev/null
+++ b/77_Salvo/csharp/Resources/WhereAreYourShips.txt
@@ -0,0 +1 @@
+Where are your ships?
diff --git a/77_Salvo/csharp/Resources/YouHaveMoreShotsThanSquares.txt b/77_Salvo/csharp/Resources/YouHaveMoreShotsThanSquares.txt
new file mode 100644
index 00000000..37c06812
--- /dev/null
+++ b/77_Salvo/csharp/Resources/YouHaveMoreShotsThanSquares.txt
@@ -0,0 +1 @@
+You have more shots that there are blank squares.
diff --git a/77_Salvo/csharp/Resources/YouHaveShots.txt b/77_Salvo/csharp/Resources/YouHaveShots.txt
new file mode 100644
index 00000000..43abeda8
--- /dev/null
+++ b/77_Salvo/csharp/Resources/YouHaveShots.txt
@@ -0,0 +1 @@
+You have {0} shots.
diff --git a/77_Salvo/csharp/Resources/YouHit.txt b/77_Salvo/csharp/Resources/YouHit.txt
new file mode 100644
index 00000000..b5b5d761
--- /dev/null
+++ b/77_Salvo/csharp/Resources/YouHit.txt
@@ -0,0 +1 @@
+You hit my {0}.
diff --git a/77_Salvo/csharp/Resources/YouWon.txt b/77_Salvo/csharp/Resources/YouWon.txt
new file mode 100644
index 00000000..1f71343b
--- /dev/null
+++ b/77_Salvo/csharp/Resources/YouWon.txt
@@ -0,0 +1 @@
+You have won.