diff --git a/README.md b/README.md
index c537db3..793b776 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,7 @@ The general features:
 
 Symbol `X` means all minor versions.
 
+- [x] 1.7.X
 - [x] 1.8.X
 - [x] 1.9.X
 - [x] 1.10.X
diff --git a/src/main/java/ru/nanit/limbo/connection/ClientConnection.java b/src/main/java/ru/nanit/limbo/connection/ClientConnection.java
index 72f7b98..75cbc74 100644
--- a/src/main/java/ru/nanit/limbo/connection/ClientConnection.java
+++ b/src/main/java/ru/nanit/limbo/connection/ClientConnection.java
@@ -46,6 +46,7 @@ import java.security.InvalidKeyException;
 import java.security.MessageDigest;
 import java.util.UUID;
 import java.util.concurrent.ThreadLocalRandom;
+import java.util.concurrent.TimeUnit;
 
 public class ClientConnection extends ChannelInboundHandlerAdapter {
 
@@ -123,41 +124,48 @@ public class ClientConnection extends ChannelInboundHandlerAdapter {
             return;
         }
 
-        writePacket(PacketSnapshots.PACKET_LOGIN_SUCCESS);
+        sendPacket(PacketSnapshots.PACKET_LOGIN_SUCCESS);
         updateState(State.PLAY);
-
         server.getConnections().addConnection(this);
 
-        writePacket(PacketSnapshots.PACKET_JOIN_GAME);
-        writePacket(PacketSnapshots.PACKET_PLAYER_ABILITIES);
-        writePacket(PacketSnapshots.PACKET_PLAYER_POS);
-        if (clientVersion.moreOrEqual(Version.V1_19_3)) {
-            writePacket(PacketSnapshots.PACKET_SPAWN_POSITION);
+        Runnable sendPlayPackets = () -> {
+            writePacket(PacketSnapshots.PACKET_JOIN_GAME);
+            writePacket(PacketSnapshots.PACKET_PLAYER_ABILITIES);
+            writePacket(PacketSnapshots.PACKET_PLAYER_POS);
+
+            if (clientVersion.moreOrEqual(Version.V1_19_3))
+                writePacket(PacketSnapshots.PACKET_SPAWN_POSITION);
+
+            if (server.getConfig().isUsePlayerList() || clientVersion.equals(Version.V1_16_4))
+                writePacket(PacketSnapshots.PACKET_PLAYER_INFO);
+
+            if (clientVersion.moreOrEqual(Version.V1_13)) {
+                writePacket(PacketSnapshots.PACKET_DECLARE_COMMANDS);
+
+                if (PacketSnapshots.PACKET_PLUGIN_MESSAGE != null)
+                    writePacket(PacketSnapshots.PACKET_PLUGIN_MESSAGE);
+            }
+
+            if (PacketSnapshots.PACKET_BOSS_BAR != null && clientVersion.moreOrEqual(Version.V1_9))
+                writePacket(PacketSnapshots.PACKET_BOSS_BAR);
+
+            if (PacketSnapshots.PACKET_JOIN_MESSAGE != null)
+                writePacket(PacketSnapshots.PACKET_JOIN_MESSAGE);
+
+            if (PacketSnapshots.PACKET_TITLE_TITLE != null && clientVersion.moreOrEqual(Version.V1_8))
+                writeTitle();
+
+            if (PacketSnapshots.PACKET_HEADER_AND_FOOTER != null && clientVersion.moreOrEqual(Version.V1_8))
+                writePacket(PacketSnapshots.PACKET_HEADER_AND_FOOTER);
+
+            sendKeepAlive();
+        };
+
+        if (clientVersion.lessOrEqual(Version.V1_7_6)) {
+            this.channel.eventLoop().schedule(sendPlayPackets, 100, TimeUnit.MILLISECONDS);
+        } else {
+            sendPlayPackets.run();
         }
-
-        if (server.getConfig().isUsePlayerList() || clientVersion.equals(Version.V1_16_4))
-            writePacket(PacketSnapshots.PACKET_PLAYER_INFO);
-
-        if (clientVersion.moreOrEqual(Version.V1_13)) {
-            writePacket(PacketSnapshots.PACKET_DECLARE_COMMANDS);
-
-            if (PacketSnapshots.PACKET_PLUGIN_MESSAGE != null)
-                writePacket(PacketSnapshots.PACKET_PLUGIN_MESSAGE);
-        }
-
-        if (PacketSnapshots.PACKET_BOSS_BAR != null && clientVersion.moreOrEqual(Version.V1_9))
-            writePacket(PacketSnapshots.PACKET_BOSS_BAR);
-
-        if (PacketSnapshots.PACKET_JOIN_MESSAGE != null)
-            writePacket(PacketSnapshots.PACKET_JOIN_MESSAGE);
-
-        if (PacketSnapshots.PACKET_TITLE_TITLE != null)
-            writeTitle();
-
-        if (PacketSnapshots.PACKET_HEADER_AND_FOOTER != null)
-            writePacket(PacketSnapshots.PACKET_HEADER_AND_FOOTER);
-
-        sendKeepAlive();
     }
 
     public void disconnectLogin(String reason) {
diff --git a/src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginSuccess.java b/src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginSuccess.java
index b06d2e0..6159c9f 100644
--- a/src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginSuccess.java
+++ b/src/main/java/ru/nanit/limbo/protocol/packets/login/PacketLoginSuccess.java
@@ -40,8 +40,10 @@ public class PacketLoginSuccess implements PacketOut {
     public void encode(ByteMessage msg, Version version) {
         if (version.moreOrEqual(Version.V1_16)) {
             msg.writeUuid(uuid);
-        } else {
+        } else if (version.moreOrEqual(Version.V1_7_6)) {
             msg.writeString(uuid.toString());
+        } else {
+            msg.writeString(uuid.toString().replace("-", ""));
         }
         msg.writeString(username);
         if (version.moreOrEqual(Version.V1_19)) {
diff --git a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketChatMessage.java b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketChatMessage.java
index 29e5609..21c57aa 100644
--- a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketChatMessage.java
+++ b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketChatMessage.java
@@ -46,11 +46,9 @@ public class PacketChatMessage implements PacketOut {
         msg.writeString(jsonData);
         if (version.moreOrEqual(Version.V1_19_1)) {
             msg.writeBoolean(position.index == PositionLegacy.ACTION_BAR.index);
-        }
-        else if (version.moreOrEqual(Version.V1_19)) {
+        } else if (version.moreOrEqual(Version.V1_19)) {
             msg.writeVarInt(position.index);
-        }
-        else {
+        } else if (version.moreOrEqual(Version.V1_8)) {
             msg.writeByte(position.index);
         }
 
diff --git a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketJoinGame.java b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketJoinGame.java
index 111ed47..afec119 100644
--- a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketJoinGame.java
+++ b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketJoinGame.java
@@ -99,6 +99,14 @@ public class PacketJoinGame implements PacketOut {
     public void encode(ByteMessage msg, Version version) {
         msg.writeInt(entityId);
 
+        if (version.fromTo(Version.V1_7_2, Version.V1_7_6)) {
+            msg.writeByte(gameMode == 3 ? 1 : gameMode);
+            msg.writeByte(dimensionRegistry.getDefaultDimension_1_16().getId());
+            msg.writeByte(0); // Difficulty
+            msg.writeByte(maxPlayers);
+            msg.writeString("flat"); // Level type
+        }
+
         if (version.fromTo(Version.V1_8, Version.V1_9)) {
             msg.writeByte(gameMode);
             msg.writeByte(dimensionRegistry.getDefaultDimension_1_16().getId());
diff --git a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketKeepAlive.java b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketKeepAlive.java
index a92d63a..133ef32 100644
--- a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketKeepAlive.java
+++ b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketKeepAlive.java
@@ -37,8 +37,10 @@ public class PacketKeepAlive implements Packet {
     public void encode(ByteMessage msg, Version version) {
         if (version.moreOrEqual(Version.V1_12_2)) {
             msg.writeLong(id);
-        } else {
+        } else if (version.moreOrEqual(Version.V1_8)) {
             msg.writeVarInt((int) id);
+        } else {
+            msg.writeInt((int) id);
         }
     }
 
@@ -46,8 +48,10 @@ public class PacketKeepAlive implements Packet {
     public void decode(ByteMessage msg, Version version) {
         if (version.moreOrEqual(Version.V1_12_2)) {
             this.id = msg.readLong();
-        } else {
+        } else if (version.moreOrEqual(Version.V1_8)) {
             this.id = msg.readVarInt();
+        } else {
+            this.id = msg.readInt();
         }
     }
 
diff --git a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerInfo.java b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerInfo.java
index efaa639..17f0d05 100644
--- a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerInfo.java
+++ b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerInfo.java
@@ -47,39 +47,44 @@ public class PacketPlayerInfo implements PacketOut {
 
     @Override
     public void encode(ByteMessage msg, Version version) {
-        if (version.moreOrEqual(Version.V1_19_3)) {
-            EnumSet<Action> actions = EnumSet.noneOf(Action.class);
-            actions.add(Action.ADD_PLAYER);
-            actions.add(Action.UPDATE_LISTED);
-            actions.add(Action.UPDATE_GAMEMODE);
-            msg.writeEnumSet(actions, Action.class);
+        if (version.less(Version.V1_8)) {
+            msg.writeString(username);
+            msg.writeBoolean(true); // Is online
+            msg.writeShort(0);
+        } else {
+            if (version.moreOrEqual(Version.V1_19_3)) {
+                EnumSet<Action> actions = EnumSet.noneOf(Action.class);
+                actions.add(Action.ADD_PLAYER);
+                actions.add(Action.UPDATE_LISTED);
+                actions.add(Action.UPDATE_GAMEMODE);
+                msg.writeEnumSet(actions, Action.class);
 
-            msg.writeVarInt(1); // Array length (1 element)
-            msg.writeUuid(uuid); // UUID
-            msg.writeString(username); //Username
-            msg.writeVarInt(0); //Properties (0 is empty)
+                msg.writeVarInt(1); // Array length (1 element)
+                msg.writeUuid(uuid); // UUID
+                msg.writeString(username); //Username
+                msg.writeVarInt(0); //Properties (0 is empty)
 
-            msg.writeBoolean(true); //Update listed
-
-            msg.writeVarInt(gameMode); //Gamemode
-
-            return;
-        }
-        msg.writeVarInt(0); // Add player action
-        msg.writeVarInt(1);
-        msg.writeUuid(uuid);
-        msg.writeString(username);
-        msg.writeVarInt(0);
-        msg.writeVarInt(gameMode);
-        msg.writeVarInt(60);
-        msg.writeBoolean(false);
-        if (version.moreOrEqual(Version.V1_19)) {
+                msg.writeBoolean(true); //Update listed
+                msg.writeVarInt(gameMode); //Gamemode
+                return;
+            }
+            
+            msg.writeVarInt(0); // Add player action
+            msg.writeVarInt(1);
+            msg.writeUuid(uuid);
+            msg.writeString(username);
+            msg.writeVarInt(0);
+            msg.writeVarInt(gameMode);
+            msg.writeVarInt(60);
             msg.writeBoolean(false);
+            
+            if (version.moreOrEqual(Version.V1_19)) {
+                msg.writeBoolean(false);
+            }
         }
     }
 
     public static enum Action {
-
         ADD_PLAYER,
         INITIALIZE_CHAT,
         UPDATE_GAMEMODE,
diff --git a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerPositionAndLook.java b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerPositionAndLook.java
index c195f49..eb24dea 100644
--- a/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerPositionAndLook.java
+++ b/src/main/java/ru/nanit/limbo/protocol/packets/play/PacketPlayerPositionAndLook.java
@@ -62,15 +62,18 @@ public class PacketPlayerPositionAndLook implements PacketOut {
     @Override
     public void encode(ByteMessage msg, Version version) {
         msg.writeDouble(x);
-        msg.writeDouble(y);
+        msg.writeDouble(y + (version.less(Version.V1_8) ? 1.62F : 0));
         msg.writeDouble(z);
         msg.writeFloat(yaw);
         msg.writeFloat(pitch);
 
-        if (version.less(Version.V1_9)) {
-            msg.writeBoolean(true); // On ground
-        } else {
+        if (version.moreOrEqual(Version.V1_8)) {
             msg.writeByte(flags);
+        } else {
+            msg.writeBoolean(true);
+        }
+
+        if (version.moreOrEqual(Version.V1_9)) {
             msg.writeVarInt(teleportId);
         }
 
diff --git a/src/main/java/ru/nanit/limbo/protocol/registry/State.java b/src/main/java/ru/nanit/limbo/protocol/registry/State.java
index 378b9b9..73a0e93 100644
--- a/src/main/java/ru/nanit/limbo/protocol/registry/State.java
+++ b/src/main/java/ru/nanit/limbo/protocol/registry/State.java
@@ -77,7 +77,7 @@ public enum State {
     PLAY(3) {
         {
             serverBound.register(PacketKeepAlive::new,
-                    map(0x00, V1_8, V1_8),
+                    map(0x00, V1_7_2, V1_8),
                     map(0x0B, V1_9, V1_11_1),
                     map(0x0C, V1_12, V1_12),
                     map(0x0B, V1_12_1, V1_12_2),
@@ -100,7 +100,7 @@ public enum State {
                     map(0x0E, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketJoinGame::new,
-                    map(0x01, V1_8, V1_8),
+                    map(0x01, V1_7_2, V1_8),
                     map(0x23, V1_9, V1_12_2),
                     map(0x25, V1_13, V1_14_4),
                     map(0x26, V1_15, V1_15_2),
@@ -123,7 +123,7 @@ public enum State {
                     map(0x15, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketPlayerAbilities::new,
-                    map(0x39, V1_8, V1_8),
+                    map(0x39, V1_7_2, V1_8),
                     map(0x2B, V1_9, V1_12),
                     map(0x2C, V1_12_1, V1_12_2),
                     map(0x2E, V1_13, V1_13_2),
@@ -137,7 +137,7 @@ public enum State {
                     map(0x30, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketPlayerPositionAndLook::new,
-                    map(0x08, V1_8, V1_8),
+                    map(0x08, V1_7_2, V1_8),
                     map(0x2E, V1_9, V1_12),
                     map(0x2F, V1_12_1, V1_12_2),
                     map(0x32, V1_13, V1_13_2),
@@ -151,7 +151,7 @@ public enum State {
                     map(0x38, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketKeepAlive::new,
-                    map(0x00, V1_8, V1_8),
+                    map(0x00, V1_7_2, V1_8),
                     map(0x1F, V1_9, V1_12_2),
                     map(0x21, V1_13, V1_13_2),
                     map(0x20, V1_14, V1_14_4),
@@ -164,7 +164,7 @@ public enum State {
                     map(0x1F, V1_19_3, V1_19_3)
             );
             clientBound.register(PacketChatMessage::new,
-                    map(0x02, V1_8, V1_8),
+                    map(0x02, V1_7_2, V1_8),
                     map(0x0F, V1_9, V1_12_2),
                     map(0x0E, V1_13, V1_14_4),
                     map(0x0F, V1_15, V1_15_2),
@@ -182,7 +182,7 @@ public enum State {
                     map(0x0A, V1_19, V1_19_3)
             );
             clientBound.register(PacketPlayerInfo::new,
-                    map(0x38, V1_8, V1_8),
+                    map(0x38, V1_7_2, V1_8),
                     map(0x2D, V1_9, V1_12),
                     map(0x2E, V1_12_1, V1_12_2),
                     map(0x30, V1_13, V1_13_2),
diff --git a/src/main/java/ru/nanit/limbo/protocol/registry/Version.java b/src/main/java/ru/nanit/limbo/protocol/registry/Version.java
index 580e3bd..57165f7 100644
--- a/src/main/java/ru/nanit/limbo/protocol/registry/Version.java
+++ b/src/main/java/ru/nanit/limbo/protocol/registry/Version.java
@@ -23,6 +23,10 @@ import java.util.Map;
 public enum Version {
 
     UNDEFINED(-1),
+    V1_7_2(4),
+    // 1.7.2-1.7.5 has same protocol numbers
+    V1_7_6(5),
+    // 1.7.6-1.7.10 has same protocol numbers
     V1_8(47),
     // 1.8-1.8.8 has same protocol numbers
     V1_9(107),
@@ -120,7 +124,7 @@ public enum Version {
     }
 
     public static Version getMin() {
-        return V1_8;
+        return V1_7_2;
     }
 
     public static Version getMax() {