diff --git a/84 Super Star Trek/csharp/Random.cs b/84 Super Star Trek/csharp/Random.cs
index ae51d95b..cd0ef230 100644
--- a/84 Super Star Trek/csharp/Random.cs	
+++ b/84 Super Star Trek/csharp/Random.cs	
@@ -4,7 +4,7 @@ namespace SuperStarTrek
 {
     internal class Random
     {
-        private static readonly System.Random _random = new();
+        private readonly System.Random _random = new();
 
         internal Coordinates GetCoordinate() => new Coordinates(Get1To8Inclusive() - 1, Get1To8Inclusive() - 1);
 
diff --git a/84 Super Star Trek/csharp/Resources/Strings.cs b/84 Super Star Trek/csharp/Resources/Strings.cs
index fea41521..72fd7d5a 100644
--- a/84 Super Star Trek/csharp/Resources/Strings.cs	
+++ b/84 Super Star Trek/csharp/Resources/Strings.cs	
@@ -35,9 +35,7 @@ namespace SuperStarTrek.Resources
         private static string GetResource([CallerMemberName] string name = "")
         {
             var streamName = $"SuperStarTrek.Resources.{name}.txt";
-            using var stream = Assembly
-                .GetExecutingAssembly()
-                .GetManifestResourceStream(streamName);
+            using var stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(streamName);
             using var reader = new StreamReader(stream);
 
             return reader.ReadToEnd();
diff --git a/84 Super Star Trek/csharp/Space/Coordinates.cs b/84 Super Star Trek/csharp/Space/Coordinates.cs
index 4c4f7b69..4bcc8085 100644
--- a/84 Super Star Trek/csharp/Space/Coordinates.cs	
+++ b/84 Super Star Trek/csharp/Space/Coordinates.cs	
@@ -21,7 +21,7 @@ namespace SuperStarTrek.Space
         internal int RegionIndex { get; }
         internal int SubRegionIndex { get; }
 
-        private int Validated(int value, string argumentName)
+        private static int Validated(int value, string argumentName)
         {
             if (value >= 0 && value <= 7) { return value; }
 
diff --git a/84 Super Star Trek/csharp/Space/Course.cs b/84 Super Star Trek/csharp/Space/Course.cs
index a46385c3..7067ec81 100644
--- a/84 Super Star Trek/csharp/Space/Course.cs	
+++ b/84 Super Star Trek/csharp/Space/Course.cs	
@@ -74,7 +74,7 @@ namespace SuperStarTrek.Space
             return (xComplete && yComplete, new Coordinates(quadrantX, quadrantY), new Coordinates(sectorX, sectorY));
         }
 
-        private (bool, int, int) GetNewCoordinate(int quadrant, int sector, float sectorsTravelled)
+        private static (bool, int, int) GetNewCoordinate(int quadrant, int sector, float sectorsTravelled)
         {
             var galacticCoordinate = quadrant * 8 + sector + sectorsTravelled;
             var newQuadrant = (int)(galacticCoordinate / 8);
diff --git a/84 Super Star Trek/csharp/Space/Galaxy.cs b/84 Super Star Trek/csharp/Space/Galaxy.cs
index 8fce8fb9..66f7c418 100644
--- a/84 Super Star Trek/csharp/Space/Galaxy.cs	
+++ b/84 Super Star Trek/csharp/Space/Galaxy.cs	
@@ -11,7 +11,6 @@ namespace SuperStarTrek.Space
         private static readonly string[] _regionNames;
         private static readonly string[] _subRegionIdentifiers;
         private readonly QuadrantInfo[][] _quadrants;
-        private readonly Random _random;
 
         static Galaxy()
         {
@@ -21,8 +20,6 @@ namespace SuperStarTrek.Space
 
         internal Galaxy(Random random)
         {
-            _random = random;
-
             _quadrants = Enumerable
                 .Range(0, 8)
                 .Select(x => Enumerable
diff --git a/84 Super Star Trek/csharp/Utils/DirectionAndDistance.cs b/84 Super Star Trek/csharp/Utils/DirectionAndDistance.cs
index 65cb6a30..e4b1a2fa 100644
--- a/84 Super Star Trek/csharp/Utils/DirectionAndDistance.cs	
+++ b/84 Super Star Trek/csharp/Utils/DirectionAndDistance.cs	
@@ -45,7 +45,7 @@ namespace SuperStarTrek.Utils
         //     8430 PRINT"DIRECTION =";C1+(((ABS(X)-ABS(A))+ABS(X))/ABS(X)):GOTO8460
         //     8450 PRINT"DIRECTION =";C1+(ABS(X)/ABS(A))
         //     8460 PRINT"DISTANCE =";SQR(X^2+A^2):IFH8=1THEN1990
-        private float GetDirection(float deltaX, float deltaY)
+        private static float GetDirection(float deltaX, float deltaY)
         {
             var deltaXDominant = Math.Abs(deltaX) > Math.Abs(deltaY);
             var fractionalPart = deltaXDominant ? deltaY / deltaX : -deltaX / deltaY;
@@ -59,7 +59,7 @@ namespace SuperStarTrek.Utils
             return direction < 1 ? direction + 8 : direction;
         }
 
-        private float GetDistance(float deltaX, float deltaY) =>
+        private static float GetDistance(float deltaX, float deltaY) =>
             (float)Math.Sqrt(Math.Pow(deltaX, 2) + Math.Pow(deltaY, 2));
     }
 }
\ No newline at end of file