diff --git a/BauSystem_19/src/de/steamwar/bausystem/features/simulator/Simulator19.java b/BauSystem_19/src/de/steamwar/bausystem/features/simulator/Simulator19.java
index 96a8d382..2c0bb8eb 100644
--- a/BauSystem_19/src/de/steamwar/bausystem/features/simulator/Simulator19.java
+++ b/BauSystem_19/src/de/steamwar/bausystem/features/simulator/Simulator19.java
@@ -27,10 +27,7 @@ import org.bukkit.util.BoundingBox;
 import org.bukkit.util.Vector;
 import org.bukkit.util.VoxelShape;
 
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
+import java.util.*;
 
 public class Simulator19 implements Simulator {
 
@@ -42,11 +39,23 @@ public class Simulator19 implements Simulator {
 
     @Override
     public synchronized void run() {
-        TNT tnt = new TNT(0, 120, 0);
-        do {
-            System.out.println(tnt);
-        } while (!tnt.tick());
-        System.out.println(tnt);
+        List<TNT> tntList = new ArrayList<>();
+        for (int i = 0; i < 400; i++) {
+            tntList.add(new TNT(0, 120, 0));
+        }
+        long time = System.currentTimeMillis();
+        while (!tntList.isEmpty()) {
+            List<TNT> remove = new ArrayList<>();
+            for (TNT tnt : tntList) {
+                if (tnt.getFuse() == 0) {
+                    remove.add(tnt);
+                    continue;
+                }
+                tnt.tick();
+            }
+            tntList.removeAll(remove);
+        }
+        System.out.println("Time: " + (System.currentTimeMillis() - time) + "ms");
 
         BLOCK_TYPES_MAP.clear();
         BLOCK_DATA_MAP.clear();