diff --git a/CS2GSI/CS2Event.cs b/CS2GSI/CS2Event.cs
index f6e83dd..27ff43f 100644
--- a/CS2GSI/CS2Event.cs
+++ b/CS2GSI/CS2Event.cs
@@ -28,4 +28,5 @@ public enum CS2Event : byte {
     OnBombExploded = 24,
     AnyEvent = 25,
     AnyMessage = 26,
+    OnActivityChange = 27
 }
\ No newline at end of file
diff --git a/CS2GSI/CS2EventGenerator.cs b/CS2GSI/CS2EventGenerator.cs
index 13bd2dd..2cdabe0 100644
--- a/CS2GSI/CS2EventGenerator.cs
+++ b/CS2GSI/CS2EventGenerator.cs
@@ -15,6 +15,9 @@ internal static class CS2EventGenerator
         
         if(events.Count > 0)
             events.Add(new ValueTuple<CS2Event, CS2EventArgs>(CS2Event.AnyEvent, new CS2EventArgs(events.Count)));
+
+        if (lastGameState.Player?.Activity != newGameState.Player?.Activity)
+            events.Add(new(CS2Event.OnActivityChange, new CS2EventArgs(newGameState.Player?.Activity)));
         
         events.Add(new ValueTuple<CS2Event, CS2EventArgs>(CS2Event.AnyMessage, new CS2EventArgs()));
         return events;
diff --git a/CS2GSI/CS2GSI.cs b/CS2GSI/CS2GSI.cs
index a0d4adc..4bcdea9 100644
--- a/CS2GSI/CS2GSI.cs
+++ b/CS2GSI/CS2GSI.cs
@@ -99,6 +99,7 @@ public class CS2GSI
             CS2Event.OnBombExploded => this.OnBombExploded,
             CS2Event.AnyEvent => this.AnyEvent,
             CS2Event.AnyMessage => this.AnyMessage,
+            CS2Event.OnActivityChange => this.OnActivityChange,
             _ => throw new ArgumentException(Resources.Unknown_Event, nameof(cs2Event))
         };
     }
@@ -133,6 +134,7 @@ public class CS2GSI
         OnBombDefused,
         OnBombExploded,
         AnyEvent,
-        AnyMessage;
+        AnyMessage,
+        OnActivityChange;
 
 }
\ No newline at end of file