diff --git a/Engine.Core/Helpers/Event.cs b/Engine.Core/Helpers/Event.cs
index 391ca09..c6dd65c 100644
--- a/Engine.Core/Helpers/Event.cs
+++ b/Engine.Core/Helpers/Event.cs
@@ -3,10 +3,10 @@ using System.Collections.Generic;
 
 namespace Syntriax.Engine.Core;
 
-public class Event(int initialListenerCount = 4, int initialOnceListenerCount = 2)
+public class Event
 {
-    private readonly List<EventHandler> listeners = new(initialListenerCount);
-    private readonly List<EventHandler> onceListeners = new(initialOnceListenerCount);
+    private readonly List<EventHandler> listeners = null!;
+    private readonly List<EventHandler> onceListeners = null!;
 
     public void AddListener(EventHandler listener) => listeners.Add(listener);
     public void AddOnceListener(EventHandler listener) => onceListeners.Add(listener);
@@ -35,13 +35,25 @@ public class Event(int initialListenerCount = 4, int initialOnceListenerCount =
         }
     }
 
+    public Event(int initialListenerCount = 4, int initialOnceListenerCount = 2)
+    {
+        listeners = new(initialListenerCount);
+        onceListeners = new(initialOnceListenerCount);
+    }
+
+    public Event()
+    {
+        listeners = new(4);
+        onceListeners = new(2);
+    }
+
     public delegate void EventHandler();
 }
 
-public class Event<TSender>(int initialListenerCount = 4, int initialOnceListenerCount = 2)
+public class Event<TSender>
 {
-    private readonly List<EventHandler> listeners = new(initialListenerCount);
-    private readonly List<EventHandler> onceListeners = new(initialOnceListenerCount);
+    private readonly List<EventHandler> listeners = null!;
+    private readonly List<EventHandler> onceListeners = null!;
 
     public void AddListener(EventHandler listener) => listeners.Add(listener);
     public void AddOnceListener(EventHandler listener) => onceListeners.Add(listener);
@@ -70,13 +82,25 @@ public class Event<TSender>(int initialListenerCount = 4, int initialOnceListene
         }
     }
 
+    public Event(int initialListenerCount = 4, int initialOnceListenerCount = 2)
+    {
+        listeners = new(initialListenerCount);
+        onceListeners = new(initialOnceListenerCount);
+    }
+
+    public Event()
+    {
+        listeners = new(4);
+        onceListeners = new(2);
+    }
+
     public delegate void EventHandler(TSender sender);
 }
 
-public class Event<TSender, TArguments>(int initialListenerCount = 4, int initialOnceListenerCount = 2)
+public class Event<TSender, TArguments>
 {
-    private readonly List<EventHandler> listeners = new(initialListenerCount);
-    private readonly List<EventHandler> onceListeners = new(initialOnceListenerCount);
+    private readonly List<EventHandler> listeners = null!;
+    private readonly List<EventHandler> onceListeners = null!;
 
     public void AddListener(EventHandler listener) => listeners.Add(listener);
     public void AddOnceListener(EventHandler listener) => onceListeners.Add(listener);
@@ -105,5 +129,17 @@ public class Event<TSender, TArguments>(int initialListenerCount = 4, int initia
         }
     }
 
+    public Event(int initialListenerCount = 4, int initialOnceListenerCount = 2)
+    {
+        listeners = new(initialListenerCount);
+        onceListeners = new(initialOnceListenerCount);
+    }
+
+    public Event()
+    {
+        listeners = new(4);
+        onceListeners = new(2);
+    }
+
     public delegate void EventHandler(TSender sender, TArguments args);
 }