diff --git a/core/src/main/java/mc/core/nbt/Taggable.java b/core/src/main/java/mc/core/nbt/Taggable.java
deleted file mode 100644
index 0e3a46c..0000000
--- a/core/src/main/java/mc/core/nbt/Taggable.java
+++ /dev/null
@@ -1,11 +0,0 @@
-package mc.core.nbt;
-
-import com.flowpowered.nbt.Tag;
-
-import java.util.stream.Stream;
-
-public interface Taggable {
-    Tag<?> getTag(String name);
-    void setTag(Tag<?> tag);
-    Stream<Tag<?>> tagStream();
-}
diff --git a/core/src/main/java/mc/core/world/block/AbstractBlock.java b/core/src/main/java/mc/core/world/block/AbstractBlock.java
index b00b8af..6bf8445 100644
--- a/core/src/main/java/mc/core/world/block/AbstractBlock.java
+++ b/core/src/main/java/mc/core/world/block/AbstractBlock.java
@@ -1,13 +1,8 @@
 package mc.core.world.block;
 
-import com.flowpowered.nbt.Tag;
 import lombok.Getter;
 import lombok.Setter;
 
-import java.util.HashMap;
-import java.util.Map;
-import java.util.stream.Stream;
-
 public abstract class AbstractBlock implements Block {
     @Getter
     @Setter
@@ -16,7 +11,6 @@ public abstract class AbstractBlock implements Block {
     private int light = 0;
     @Getter
     private final BlockType blockType;
-    private final Map<String, Tag<?>> nbtTagsMap = new HashMap<>();
 
     protected AbstractBlock(BlockType type) {
         this.blockType = type;
@@ -28,19 +22,4 @@ public abstract class AbstractBlock implements Block {
         else if (light < 0) this.light = 0;
         else this.light = light;
     }
-
-    @Override
-    public Tag<?> getTag(String name) {
-        return nbtTagsMap.get(name);
-    }
-
-    @Override
-    public void setTag(Tag<?> tag) {
-        nbtTagsMap.put(tag.getName(), tag);
-    }
-
-    @Override
-    public Stream<Tag<?>> tagStream() {
-        return nbtTagsMap.values().stream();
-    }
 }
diff --git a/core/src/main/java/mc/core/world/block/Block.java b/core/src/main/java/mc/core/world/block/Block.java
index b54a7d0..a23d3df 100644
--- a/core/src/main/java/mc/core/world/block/Block.java
+++ b/core/src/main/java/mc/core/world/block/Block.java
@@ -1,8 +1,6 @@
 package mc.core.world.block;
 
-import mc.core.nbt.Taggable;
-
-public interface Block extends Taggable{
+public interface Block {
     int getLight();
     void setLight(int light);
     BlockType getBlockType();
diff --git a/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/Crypter.java b/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/Crypter.java
deleted file mode 100644
index 7259f93..0000000
--- a/proto_1.12.2/src/main/java/mc/core/network/proto_1_12_2/Crypter.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * DmitriyMX <dimon550@gmail.com>
- * 2018-06-11
- */
-package mc.core.network.proto_1_12_2;
-
-import lombok.extern.slf4j.Slf4j;
-
-import java.security.KeyPair;
-import java.security.KeyPairGenerator;
-import java.security.NoSuchAlgorithmException;
-import java.util.Random;
-
-@Slf4j
-public class Crypter {
-    private static final Crypter instance = new Crypter();
-    private KeyPair keyPair;
-    private byte[] verifyToken;
-
-    public static KeyPair getKeyPair() {
-        if (instance.keyPair == null) {
-            try {
-                KeyPairGenerator keypairgenerator = KeyPairGenerator.getInstance("RSA");
-                keypairgenerator.initialize(1024);
-                instance.keyPair = keypairgenerator.generateKeyPair();
-            } catch (NoSuchAlgorithmException e) {
-                log.error("WTF?! Algorithm \"RSA\" not defined?!", e);
-            }
-        }
-
-        return instance.keyPair;
-    }
-
-    public static byte[] getVerifyToken() {
-        if (instance.verifyToken == null) {
-            instance.verifyToken = new byte[4];
-            Random rand = new Random();
-            rand.nextBytes(instance.verifyToken);
-        }
-
-        return instance.verifyToken;
-    }
-}