diff --git a/src/main/java/ru/bclib/BCLib.java b/src/main/java/ru/bclib/BCLib.java
index da25b58f..7de687de 100644
--- a/src/main/java/ru/bclib/BCLib.java
+++ b/src/main/java/ru/bclib/BCLib.java
@@ -8,6 +8,7 @@ import ru.bclib.api.TagAPI;
 import ru.bclib.api.WorldDataAPI;
 import ru.bclib.api.dataexchange.DataExchangeAPI;
 import ru.bclib.api.dataexchange.handler.HelloClient;
+import ru.bclib.api.dataexchange.handler.HelloServer;
 import ru.bclib.config.Configs;
 import ru.bclib.recipes.CraftingRecipes;
 import ru.bclib.registry.BaseBlockEntities;
@@ -30,6 +31,7 @@ public class BCLib implements ModInitializer {
 		Configs.save();
 		
 		DataExchangeAPI.registerDescriptor(HelloClient.DESCRIPTOR);
+		DataExchangeAPI.registerDescriptor(HelloServer.DESCRIPTOR);
 	}
 	
 	public static boolean isDevEnvironment() {
diff --git a/src/main/java/ru/bclib/api/dataexchange/handler/HelloClient.java b/src/main/java/ru/bclib/api/dataexchange/handler/HelloClient.java
index cfcf17c8..6bdccd89 100644
--- a/src/main/java/ru/bclib/api/dataexchange/handler/HelloClient.java
+++ b/src/main/java/ru/bclib/api/dataexchange/handler/HelloClient.java
@@ -91,7 +91,6 @@ public class HelloClient extends DataHandler {
 	
 	@Environment(EnvType.CLIENT)
 	protected void showBCLibError(Minecraft client){
-		client.pauseGame(false);
 		BCLib.LOGGER.error("BCLib differs on client and server.");
 		client.setScreen(new WarnBCLibVersionMismatch((download) -> {
 			Minecraft.getInstance().setScreen((Screen)null);
diff --git a/src/main/java/ru/bclib/mixin/client/ClientboundLoginPacketMixin.java b/src/main/java/ru/bclib/mixin/client/ClientboundLoginPacketMixin.java
new file mode 100644
index 00000000..b25550cb
--- /dev/null
+++ b/src/main/java/ru/bclib/mixin/client/ClientboundLoginPacketMixin.java
@@ -0,0 +1,20 @@
+package ru.bclib.mixin.client;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.network.protocol.game.ClientGamePacketListener;
+import net.minecraft.network.protocol.game.ClientboundLoginPacket;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import ru.bclib.api.dataexchange.DataExchangeAPI;
+
+@Mixin(ClientboundLoginPacket.class)
+public abstract class ClientboundLoginPacketMixin {
+	@Inject(method = "handle", cancellable = true, at=@At("HEAD"))
+	public void bclib_handle(ClientGamePacketListener clientGamePacketListener, CallbackInfo ci){
+		//cLevel.setBCLibDidSendHello();
+//		DataExchangeAPI.sendOnEnter();
+//		ci.cancel();
+	}
+}
diff --git a/src/main/java/ru/bclib/mixin/client/GameMixin.java b/src/main/java/ru/bclib/mixin/client/GameMixin.java
new file mode 100644
index 00000000..0753dd73
--- /dev/null
+++ b/src/main/java/ru/bclib/mixin/client/GameMixin.java
@@ -0,0 +1,18 @@
+package ru.bclib.mixin.client;
+
+import net.minecraft.client.Game;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import ru.bclib.api.dataexchange.DataExchangeAPI;
+import ru.bclib.api.dataexchange.handler.HelloServer;
+
+@Mixin(Game.class)
+public class GameMixin {
+	
+	@Inject(method="onStartGameSession", at=@At("TAIL"))
+	public void bcliv_onStart(CallbackInfo ci){
+		DataExchangeAPI.send(new HelloServer());
+	}
+}
diff --git a/src/main/java/ru/bclib/mixin/client/MinecraftMixin.java b/src/main/java/ru/bclib/mixin/client/MinecraftMixin.java
index 7cfd889a..3401de2a 100644
--- a/src/main/java/ru/bclib/mixin/client/MinecraftMixin.java
+++ b/src/main/java/ru/bclib/mixin/client/MinecraftMixin.java
@@ -3,7 +3,9 @@ package ru.bclib.mixin.client;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.color.block.BlockColors;
 import net.minecraft.client.color.item.ItemColors;
+import net.minecraft.client.gui.screens.Screen;
 import net.minecraft.client.main.GameConfig;
+import net.minecraft.client.multiplayer.ClientLevel;
 import net.minecraft.core.Registry;
 import net.minecraft.core.RegistryAccess.RegistryHolder;
 import net.minecraft.world.level.LevelSettings;
@@ -16,6 +18,7 @@ import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.ModifyArg;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import ru.bclib.api.dataexchange.DataExchangeAPI;
 import ru.bclib.api.datafixer.DataFixerAPI;
 import ru.bclib.interfaces.CustomColorProvider;
 
@@ -51,6 +54,8 @@ public abstract class MinecraftMixin {
 		if (levelID.startsWith(BCLIB_RECURSION)) {
 			levelID = levelID.substring(BCLIB_RECURSION.length());
 			recursiveCall = true;
+		} else {
+			DataExchangeAPI.prepareServerside();
 		}
 
 		final String recursiveLevelID = BCLIB_RECURSION + levelID;
diff --git a/src/main/resources/bclib.mixins.client.json b/src/main/resources/bclib.mixins.client.json
index 267fb2fb..037950d3 100644
--- a/src/main/resources/bclib.mixins.client.json
+++ b/src/main/resources/bclib.mixins.client.json
@@ -6,6 +6,7 @@
 	"client": [
 		"EnchantingTableBlockMixin",
 		"BackgroundRendererMixin",
+		"GameMixin",
 		"TextureAtlasMixin",
 		"ModelBakeryMixin",
 		"MinecraftMixin"