diff --git a/Assets/Scripts/Tower/BeamTower.cs b/Assets/Scripts/Tower/BeamTower.cs
index 7da6784..e6764ec 100644
--- a/Assets/Scripts/Tower/BeamTower.cs
+++ b/Assets/Scripts/Tower/BeamTower.cs
@@ -31,6 +31,12 @@ public class BeamTower : AimTower
     private IEnumerator AttackLoop()
     {
         do {
+            if (GameManager.Instance.CurrentNumEnemies == 0)
+            {
+                yield return new WaitForEndOfFrame();
+                continue;
+            }
+
             Vector3 origin = barrel.Tip.position;
             Vector3 rayDir = barrel.transform.forward;
 
diff --git a/Assets/Scripts/Tower/GravityTower.cs b/Assets/Scripts/Tower/GravityTower.cs
index 53a4dd1..4829710 100644
--- a/Assets/Scripts/Tower/GravityTower.cs
+++ b/Assets/Scripts/Tower/GravityTower.cs
@@ -35,6 +35,8 @@ public class GravityTower : Tower
 
     protected override void FixedUpdate()
     {
+        if (GameManager.Instance.CurrentNumEnemies == 0) return;
+
         Collider[] projectilesInRadius = Physics.OverlapSphere(orb.position, radius, affectedBodies);
         foreach (var projectile in projectilesInRadius)
         {
diff --git a/Assets/Scripts/Tower/ProjectileTower.cs b/Assets/Scripts/Tower/ProjectileTower.cs
index 059e8e7..56050ee 100644
--- a/Assets/Scripts/Tower/ProjectileTower.cs
+++ b/Assets/Scripts/Tower/ProjectileTower.cs
@@ -31,6 +31,14 @@ public class ProjectileTower : AimTower
     private IEnumerator AttackLoop()
     {
         do {
+            Debug.Log($"{GameManager.Instance.CurrentNumEnemies == 0}");
+
+            if (GameManager.Instance.CurrentNumEnemies == 0)
+            {
+                yield return new WaitForEndOfFrame();
+                continue;
+            }
+
             yield return new WaitForSeconds(attackSecondsDelay);
             Debug.DrawRay(transform.position, horizontalArc.ToKnobVector, Color.red, attackSecondsDelay);
             Debug.DrawRay(transform.position, verticalArc.ToKnobVector, Color.green, attackSecondsDelay);