diff --git a/src/main/java/land/chipmunk/chayapak/chomens_bot/Bot.java b/src/main/java/land/chipmunk/chayapak/chomens_bot/Bot.java
index fcf4eb3..90b1642 100644
--- a/src/main/java/land/chipmunk/chayapak/chomens_bot/Bot.java
+++ b/src/main/java/land/chipmunk/chayapak/chomens_bot/Bot.java
@@ -53,6 +53,8 @@ public class Bot {
     public ChatPlugin chat;
     public CommandSpyPlugin commandSpy;
     public PositionPlugin position;
+    public ServerPluginsManagerPlugin serverPluginsManager;
+    public PluginCheckerPlugin pluginChecker;
     public SelfCarePlugin selfCare;
     public CorePlugin core;
     public TeamPlugin team;
@@ -75,8 +77,7 @@ public class Bot {
     public PacketSnifferPlugin packetSniffer;
     public VoiceChatPlugin voiceChat;
     public TagPlugin tag;
-    public ServerPluginsManagerPlugin serverPluginsManager;
-    public PluginCheckerPlugin pluginChecker;
+    public WorldPlugin world;
 
     public Bot (Configuration.BotOption botOption, List<Bot> bots, Configuration config) {
         this.host = botOption.host;
@@ -101,6 +102,8 @@ public class Bot {
         this.chat = new ChatPlugin(this);
         this.commandSpy = new CommandSpyPlugin(this);
         this.position = new PositionPlugin(this);
+        this.serverPluginsManager = new ServerPluginsManagerPlugin(this);
+        this.pluginChecker = new PluginCheckerPlugin(this);
         this.selfCare = new SelfCarePlugin(this);
         this.core = new CorePlugin(this);
         this.team = new TeamPlugin(this);
@@ -123,8 +126,7 @@ public class Bot {
         this.packetSniffer = new PacketSnifferPlugin(this);
         this.voiceChat = new VoiceChatPlugin(this);
         this.tag = new TagPlugin(this);
-        this.serverPluginsManager = new ServerPluginsManagerPlugin(this);
-        this.pluginChecker = new PluginCheckerPlugin(this);
+        this.world = new WorldPlugin(this);
 
         for (Listener listener : listeners) listener.loadedPlugins();
 
diff --git a/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/CorePlugin.java b/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/CorePlugin.java
index fbdcfdd..d64c56b 100644
--- a/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/CorePlugin.java
+++ b/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/CorePlugin.java
@@ -22,6 +22,7 @@ import com.github.steveice10.packetlib.Session;
 import com.github.steveice10.packetlib.event.session.DisconnectedEvent;
 import com.github.steveice10.packetlib.packet.Packet;
 import land.chipmunk.chayapak.chomens_bot.Bot;
+import land.chipmunk.chayapak.chomens_bot.util.MathUtilities;
 import org.cloudburstmc.math.vector.Vector3i;
 
 import java.util.ArrayList;
@@ -330,11 +331,11 @@ public class CorePlugin extends PositionPlugin.Listener {
                 "minecraft:fill %s %s %s %s %s %s minecraft:command_block{CustomName:'%s'}",
 
                 from.getX(),
-                from.getY(),
+                MathUtilities.clamp(from.getY(), bot.world.minY, bot.world.maxY),
                 from.getZ(),
 
                 to.getX(),
-                to.getY(),
+                MathUtilities.clamp(to.getY(), bot.world.minY, bot.world.maxY),
                 to.getZ(),
 
                 bot.config.core.customName
diff --git a/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/WorldPlugin.java b/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/WorldPlugin.java
new file mode 100644
index 0000000..f64d9cd
--- /dev/null
+++ b/src/main/java/land/chipmunk/chayapak/chomens_bot/plugins/WorldPlugin.java
@@ -0,0 +1,64 @@
+package land.chipmunk.chayapak.chomens_bot.plugins;
+
+import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundLoginPacket;
+import com.github.steveice10.mc.protocol.packet.ingame.clientbound.ClientboundRespawnPacket;
+import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
+import com.github.steveice10.opennbt.tag.builtin.Tag;
+import com.github.steveice10.packetlib.Session;
+import com.github.steveice10.packetlib.packet.Packet;
+import land.chipmunk.chayapak.chomens_bot.Bot;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.List;
+
+public class WorldPlugin extends Bot.Listener {
+    public int minY = 0;
+    public int maxY = 256;
+
+    public CompoundTag registry = null;
+
+    private final List<Listener> listeners = new ArrayList<>();
+
+    public WorldPlugin (Bot bot) {
+        bot.addListener(this);
+    }
+
+    @Override
+    public void packetReceived(Session session, Packet packet) {
+        if (packet instanceof ClientboundLoginPacket) packetReceived((ClientboundLoginPacket) packet);
+        else if (packet instanceof ClientboundRespawnPacket) packetReceived((ClientboundRespawnPacket) packet);
+    }
+
+    @SuppressWarnings("unchecked")
+    private void worldChanged (String dimension) {
+        final Tag dimensionType = ((LinkedHashMap<String, Tag>) registry.get("minecraft:dimension_type").getValue()).get("value");
+
+        final ArrayList<CompoundTag> dimensions = (ArrayList<CompoundTag>) dimensionType.getValue();
+
+        final CompoundTag currentDimension = dimensions.stream()
+                .filter((eachDimension) -> eachDimension.get("name").getValue().equals(dimension))
+                .toArray(CompoundTag[]::new)[0];
+
+        final CompoundTag element = currentDimension.get("element");
+
+        minY = (int) element.get("min_y").getValue();
+        maxY = (int) element.get("height").getValue();
+
+        for (Listener listener : listeners) listener.worldChanged(dimension);
+    }
+
+    public void packetReceived (ClientboundLoginPacket packet) {
+        registry = packet.getRegistry();
+
+        worldChanged(packet.getDimension());
+    }
+
+    public void packetReceived (ClientboundRespawnPacket packet) {
+        worldChanged(packet.getDimension());
+    }
+
+    public static class Listener {
+        public void worldChanged (String dimension) {}
+    }
+}
diff --git a/src/main/java/land/chipmunk/chayapak/chomens_bot/util/MathUtilities.java b/src/main/java/land/chipmunk/chayapak/chomens_bot/util/MathUtilities.java
index bdd71d2..8402314 100644
--- a/src/main/java/land/chipmunk/chayapak/chomens_bot/util/MathUtilities.java
+++ b/src/main/java/land/chipmunk/chayapak/chomens_bot/util/MathUtilities.java
@@ -7,6 +7,10 @@ public class MathUtilities {
         );
     }
 
+    public static int clamp (int value, int min, int max) {
+        return Math.max(Math.min(value, max), min);
+    }
+
     public static float clamp (float value, float min, float max) {
         return Math.max(Math.min(value, max), min);
     }