diff --git a/isometric-park-fna/Utils/Extensions.cs b/isometric-park-fna/Utils/Extensions.cs
new file mode 100644
--- /dev/null
+++ b/isometric-park-fna/Utils/Extensions.cs
@@ -0,0 +1,26 @@
+
+using System;
+using System.Collections.Generic;
+
+
+namespace isometricparkfna
+{
+	public static class Extensions
+	{
+		public static List<T> Shuffle<T> (this List<T> source) {
+			Random rnd = new Random();
+
+			for(int i = (source.Count-1); i >= 0 ; i--) {
+				var j = rnd.Next(0, (source.Count-1));
+				var tmp = source[j];
+				source[j] = source[i];
+				source[i] = tmp;
+			}
+
+
+			return source;
+
+		}
+	}
+}
+