diff --git a/actions/actions.pb.go b/actions/actions.pb.go
index bcc75ab..f40e089 100644
--- a/actions/actions.pb.go
+++ b/actions/actions.pb.go
@@ -1,8 +1,8 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.3
-// 	protoc        v5.29.2
-// source: actions.proto
+// 	protoc-gen-go v1.36.6
+// 	protoc        v6.30.1
+// source: actions/actions.proto
 
 package actions
 
@@ -11,6 +11,7 @@ import (
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
 	sync "sync"
+	unsafe "unsafe"
 )
 
 const (
@@ -59,11 +60,11 @@ func (x Action_ActionType) String() string {
 }
 
 func (Action_ActionType) Descriptor() protoreflect.EnumDescriptor {
-	return file_actions_proto_enumTypes[0].Descriptor()
+	return file_actions_actions_proto_enumTypes[0].Descriptor()
 }
 
 func (Action_ActionType) Type() protoreflect.EnumType {
-	return &file_actions_proto_enumTypes[0]
+	return &file_actions_actions_proto_enumTypes[0]
 }
 
 func (x Action_ActionType) Number() protoreflect.EnumNumber {
@@ -72,7 +73,7 @@ func (x Action_ActionType) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use Action_ActionType.Descriptor instead.
 func (Action_ActionType) EnumDescriptor() ([]byte, []int) {
-	return file_actions_proto_rawDescGZIP(), []int{0, 0}
+	return file_actions_actions_proto_rawDescGZIP(), []int{0, 0}
 }
 
 type Action struct {
@@ -90,7 +91,7 @@ type Action struct {
 
 func (x *Action) Reset() {
 	*x = Action{}
-	mi := &file_actions_proto_msgTypes[0]
+	mi := &file_actions_actions_proto_msgTypes[0]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -102,7 +103,7 @@ func (x *Action) String() string {
 func (*Action) ProtoMessage() {}
 
 func (x *Action) ProtoReflect() protoreflect.Message {
-	mi := &file_actions_proto_msgTypes[0]
+	mi := &file_actions_actions_proto_msgTypes[0]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -115,7 +116,7 @@ func (x *Action) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Action.ProtoReflect.Descriptor instead.
 func (*Action) Descriptor() ([]byte, []int) {
-	return file_actions_proto_rawDescGZIP(), []int{0}
+	return file_actions_actions_proto_rawDescGZIP(), []int{0}
 }
 
 func (x *Action) GetType() Action_ActionType {
@@ -168,18 +169,19 @@ func (x *Action) GetPassword() string {
 }
 
 type ActionBatch struct {
-	state           protoimpl.MessageState `protogen:"open.v1"`
-	PlayerId        int32                  `protobuf:"varint,1,opt,name=player_id,json=playerId,proto3" json:"player_id,omitempty"`
-	Actions         []*Action              `protobuf:"bytes,2,rep,name=actions,proto3" json:"actions,omitempty"`
-	Tick            int64                  `protobuf:"varint,3,opt,name=tick,proto3" json:"tick,omitempty"`
-	ProtocolVersion int32                  `protobuf:"varint,4,opt,name=protocol_version,json=protocolVersion,proto3" json:"protocol_version,omitempty"`
-	unknownFields   protoimpl.UnknownFields
-	sizeCache       protoimpl.SizeCache
+	state                    protoimpl.MessageState `protogen:"open.v1"`
+	PlayerId                 int32                  `protobuf:"varint,1,opt,name=player_id,json=playerId,proto3" json:"player_id,omitempty"`
+	Actions                  []*Action              `protobuf:"bytes,2,rep,name=actions,proto3" json:"actions,omitempty"`
+	Tick                     int64                  `protobuf:"varint,3,opt,name=tick,proto3" json:"tick,omitempty"`
+	ProtocolVersion          int32                  `protobuf:"varint,4,opt,name=protocol_version,json=protocolVersion,proto3" json:"protocol_version,omitempty"`
+	LastSeenMessageTimestamp int64                  `protobuf:"varint,5,opt,name=last_seen_message_timestamp,json=lastSeenMessageTimestamp,proto3" json:"last_seen_message_timestamp,omitempty"`
+	unknownFields            protoimpl.UnknownFields
+	sizeCache                protoimpl.SizeCache
 }
 
 func (x *ActionBatch) Reset() {
 	*x = ActionBatch{}
-	mi := &file_actions_proto_msgTypes[1]
+	mi := &file_actions_actions_proto_msgTypes[1]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -191,7 +193,7 @@ func (x *ActionBatch) String() string {
 func (*ActionBatch) ProtoMessage() {}
 
 func (x *ActionBatch) ProtoReflect() protoreflect.Message {
-	mi := &file_actions_proto_msgTypes[1]
+	mi := &file_actions_actions_proto_msgTypes[1]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -204,7 +206,7 @@ func (x *ActionBatch) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ActionBatch.ProtoReflect.Descriptor instead.
 func (*ActionBatch) Descriptor() ([]byte, []int) {
-	return file_actions_proto_rawDescGZIP(), []int{1}
+	return file_actions_actions_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *ActionBatch) GetPlayerId() int32 {
@@ -235,6 +237,13 @@ func (x *ActionBatch) GetProtocolVersion() int32 {
 	return 0
 }
 
+func (x *ActionBatch) GetLastSeenMessageTimestamp() int64 {
+	if x != nil {
+		return x.LastSeenMessageTimestamp
+	}
+	return 0
+}
+
 type PlayerState struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	PlayerId      int32                  `protobuf:"varint,1,opt,name=player_id,json=playerId,proto3" json:"player_id,omitempty"`
@@ -247,7 +256,7 @@ type PlayerState struct {
 
 func (x *PlayerState) Reset() {
 	*x = PlayerState{}
-	mi := &file_actions_proto_msgTypes[2]
+	mi := &file_actions_actions_proto_msgTypes[2]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -259,7 +268,7 @@ func (x *PlayerState) String() string {
 func (*PlayerState) ProtoMessage() {}
 
 func (x *PlayerState) ProtoReflect() protoreflect.Message {
-	mi := &file_actions_proto_msgTypes[2]
+	mi := &file_actions_actions_proto_msgTypes[2]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -272,7 +281,7 @@ func (x *PlayerState) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use PlayerState.ProtoReflect.Descriptor instead.
 func (*PlayerState) Descriptor() ([]byte, []int) {
-	return file_actions_proto_rawDescGZIP(), []int{2}
+	return file_actions_actions_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *PlayerState) GetPlayerId() int32 {
@@ -315,7 +324,7 @@ type ChatMessage struct {
 
 func (x *ChatMessage) Reset() {
 	*x = ChatMessage{}
-	mi := &file_actions_proto_msgTypes[3]
+	mi := &file_actions_actions_proto_msgTypes[3]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -327,7 +336,7 @@ func (x *ChatMessage) String() string {
 func (*ChatMessage) ProtoMessage() {}
 
 func (x *ChatMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_actions_proto_msgTypes[3]
+	mi := &file_actions_actions_proto_msgTypes[3]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -340,7 +349,7 @@ func (x *ChatMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ChatMessage.ProtoReflect.Descriptor instead.
 func (*ChatMessage) Descriptor() ([]byte, []int) {
-	return file_actions_proto_rawDescGZIP(), []int{3}
+	return file_actions_actions_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *ChatMessage) GetPlayerId() int32 {
@@ -386,7 +395,7 @@ type ServerMessage struct {
 
 func (x *ServerMessage) Reset() {
 	*x = ServerMessage{}
-	mi := &file_actions_proto_msgTypes[4]
+	mi := &file_actions_actions_proto_msgTypes[4]
 	ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 	ms.StoreMessageInfo(mi)
 }
@@ -398,7 +407,7 @@ func (x *ServerMessage) String() string {
 func (*ServerMessage) ProtoMessage() {}
 
 func (x *ServerMessage) ProtoReflect() protoreflect.Message {
-	mi := &file_actions_proto_msgTypes[4]
+	mi := &file_actions_actions_proto_msgTypes[4]
 	if x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -411,7 +420,7 @@ func (x *ServerMessage) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ServerMessage.ProtoReflect.Descriptor instead.
 func (*ServerMessage) Descriptor() ([]byte, []int) {
-	return file_actions_proto_rawDescGZIP(), []int{4}
+	return file_actions_actions_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *ServerMessage) GetPlayerId() int32 {
@@ -463,92 +472,67 @@ func (x *ServerMessage) GetProtocolVersion() int32 {
 	return 0
 }
 
-var File_actions_proto protoreflect.FileDescriptor
+var File_actions_actions_proto protoreflect.FileDescriptor
 
-var file_actions_proto_rawDesc = []byte{
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-}
+const file_actions_actions_proto_rawDesc = "" +
+	"\n" +
+	"\x15actions/actions.proto\x12\aactions\"\x97\x02\n" +
+	"\x06Action\x12.\n" +
+	"\x04type\x18\x01 \x01(\x0e2\x1a.actions.Action.ActionTypeR\x04type\x12\f\n" +
+	"\x01x\x18\x02 \x01(\x05R\x01x\x12\f\n" +
+	"\x01y\x18\x03 \x01(\x05R\x01y\x12\x1b\n" +
+	"\tplayer_id\x18\x04 \x01(\x05R\bplayerId\x12!\n" +
+	"\fchat_message\x18\x05 \x01(\tR\vchatMessage\x12\x1a\n" +
+	"\busername\x18\x06 \x01(\tR\busername\x12\x1a\n" +
+	"\bpassword\x18\a \x01(\tR\bpassword\"I\n" +
+	"\n" +
+	"ActionType\x12\b\n" +
+	"\x04MOVE\x10\x00\x12\b\n" +
+	"\x04CHAT\x10\x01\x12\x0e\n" +
+	"\n" +
+	"DISCONNECT\x10\x02\x12\t\n" +
+	"\x05LOGIN\x10\x03\x12\f\n" +
+	"\bREGISTER\x10\x04\"\xd3\x01\n" +
+	"\vActionBatch\x12\x1b\n" +
+	"\tplayer_id\x18\x01 \x01(\x05R\bplayerId\x12)\n" +
+	"\aactions\x18\x02 \x03(\v2\x0f.actions.ActionR\aactions\x12\x12\n" +
+	"\x04tick\x18\x03 \x01(\x03R\x04tick\x12)\n" +
+	"\x10protocol_version\x18\x04 \x01(\x05R\x0fprotocolVersion\x12=\n" +
+	"\x1blast_seen_message_timestamp\x18\x05 \x01(\x03R\x18lastSeenMessageTimestamp\"b\n" +
+	"\vPlayerState\x12\x1b\n" +
+	"\tplayer_id\x18\x01 \x01(\x05R\bplayerId\x12\f\n" +
+	"\x01x\x18\x02 \x01(\x05R\x01x\x12\f\n" +
+	"\x01y\x18\x03 \x01(\x05R\x01y\x12\x1a\n" +
+	"\busername\x18\x04 \x01(\tR\busername\"~\n" +
+	"\vChatMessage\x12\x1b\n" +
+	"\tplayer_id\x18\x01 \x01(\x05R\bplayerId\x12\x1a\n" +
+	"\busername\x18\x02 \x01(\tR\busername\x12\x18\n" +
+	"\acontent\x18\x03 \x01(\tR\acontent\x12\x1c\n" +
+	"\ttimestamp\x18\x04 \x01(\x03R\ttimestamp\"\xad\x02\n" +
+	"\rServerMessage\x12\x1b\n" +
+	"\tplayer_id\x18\x01 \x01(\x05R\bplayerId\x12.\n" +
+	"\aplayers\x18\x02 \x03(\v2\x14.actions.PlayerStateR\aplayers\x12!\n" +
+	"\fcurrent_tick\x18\x03 \x01(\x03R\vcurrentTick\x129\n" +
+	"\rchat_messages\x18\x04 \x03(\v2\x14.actions.ChatMessageR\fchatMessages\x12!\n" +
+	"\fauth_success\x18\x05 \x01(\bR\vauthSuccess\x12#\n" +
+	"\rerror_message\x18\x06 \x01(\tR\ferrorMessage\x12)\n" +
+	"\x10protocol_version\x18\a \x01(\x05R\x0fprotocolVersionB,Z*gitea.boner.be/bdnugget/goonserver/actionsb\x06proto3"
 
 var (
-	file_actions_proto_rawDescOnce sync.Once
-	file_actions_proto_rawDescData = file_actions_proto_rawDesc
+	file_actions_actions_proto_rawDescOnce sync.Once
+	file_actions_actions_proto_rawDescData []byte
 )
 
-func file_actions_proto_rawDescGZIP() []byte {
-	file_actions_proto_rawDescOnce.Do(func() {
-		file_actions_proto_rawDescData = protoimpl.X.CompressGZIP(file_actions_proto_rawDescData)
+func file_actions_actions_proto_rawDescGZIP() []byte {
+	file_actions_actions_proto_rawDescOnce.Do(func() {
+		file_actions_actions_proto_rawDescData = protoimpl.X.CompressGZIP(unsafe.Slice(unsafe.StringData(file_actions_actions_proto_rawDesc), len(file_actions_actions_proto_rawDesc)))
 	})
-	return file_actions_proto_rawDescData
+	return file_actions_actions_proto_rawDescData
 }
 
-var file_actions_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
-var file_actions_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
-var file_actions_proto_goTypes = []any{
+var file_actions_actions_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
+var file_actions_actions_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
+var file_actions_actions_proto_goTypes = []any{
 	(Action_ActionType)(0), // 0: actions.Action.ActionType
 	(*Action)(nil),         // 1: actions.Action
 	(*ActionBatch)(nil),    // 2: actions.ActionBatch
@@ -556,7 +540,7 @@ var file_actions_proto_goTypes = []any{
 	(*ChatMessage)(nil),    // 4: actions.ChatMessage
 	(*ServerMessage)(nil),  // 5: actions.ServerMessage
 }
-var file_actions_proto_depIdxs = []int32{
+var file_actions_actions_proto_depIdxs = []int32{
 	0, // 0: actions.Action.type:type_name -> actions.Action.ActionType
 	1, // 1: actions.ActionBatch.actions:type_name -> actions.Action
 	3, // 2: actions.ServerMessage.players:type_name -> actions.PlayerState
@@ -568,28 +552,27 @@ var file_actions_proto_depIdxs = []int32{
 	0, // [0:4] is the sub-list for field type_name
 }
 
-func init() { file_actions_proto_init() }
-func file_actions_proto_init() {
-	if File_actions_proto != nil {
+func init() { file_actions_actions_proto_init() }
+func file_actions_actions_proto_init() {
+	if File_actions_actions_proto != nil {
 		return
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_actions_proto_rawDesc,
+			RawDescriptor: unsafe.Slice(unsafe.StringData(file_actions_actions_proto_rawDesc), len(file_actions_actions_proto_rawDesc)),
 			NumEnums:      1,
 			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
-		GoTypes:           file_actions_proto_goTypes,
-		DependencyIndexes: file_actions_proto_depIdxs,
-		EnumInfos:         file_actions_proto_enumTypes,
-		MessageInfos:      file_actions_proto_msgTypes,
+		GoTypes:           file_actions_actions_proto_goTypes,
+		DependencyIndexes: file_actions_actions_proto_depIdxs,
+		EnumInfos:         file_actions_actions_proto_enumTypes,
+		MessageInfos:      file_actions_actions_proto_msgTypes,
 	}.Build()
-	File_actions_proto = out.File
-	file_actions_proto_rawDesc = nil
-	file_actions_proto_goTypes = nil
-	file_actions_proto_depIdxs = nil
+	File_actions_actions_proto = out.File
+	file_actions_actions_proto_goTypes = nil
+	file_actions_actions_proto_depIdxs = nil
 }
diff --git a/actions/actions.proto b/actions/actions.proto
index 4e27527..da870cd 100644
--- a/actions/actions.proto
+++ b/actions/actions.proto
@@ -27,6 +27,7 @@ message ActionBatch {
     repeated Action actions = 2;
     int64 tick = 3;
     int32 protocol_version = 4;
+    int64 last_seen_message_timestamp = 5;
 }
 
 message PlayerState {
diff --git a/goonserver b/goonserver
new file mode 100755
index 0000000..7aa6b06
Binary files /dev/null and b/goonserver differ
diff --git a/main.go b/main.go
index 73678ff..dcbb4e8 100644
--- a/main.go
+++ b/main.go
@@ -24,9 +24,10 @@ const (
 
 type Player struct {
 	sync.Mutex
-	ID       int
-	X, Y     int
-	Username string
+	ID                   int
+	X, Y                 int
+	Username             string
+	LastSeenMsgTimestamp int64 // Track the last message timestamp this player has seen
 }
 
 var (
@@ -82,7 +83,10 @@ func main() {
 }
 
 func handleConnection(conn net.Conn) {
-	defer conn.Close()
+	defer func() {
+		conn.Close()
+		log.Printf("Connection closed and cleanup complete")
+	}()
 
 	// Get client IP
 	remoteAddr := conn.RemoteAddr().String()
@@ -188,29 +192,57 @@ func handleConnection(conn net.Conn) {
 		return
 	}
 
-	player := &Player{
-		ID:       playerID,
-		X:        x,
-		Y:        y,
-		Username: username,
+	log.Printf("Player %d (%s) authenticated successfully, checking for existing session", playerID, username)
+
+	// Check for existing session and force disconnect if needed
+	mu.Lock()
+	existingPlayer, alreadyLoggedIn := players[playerID]
+	if alreadyLoggedIn {
+		log.Printf("Player %d (%s) is already logged in, forcing disconnect of old session", playerID, username)
+		// An existing session is found - clean it up
+		if oldConn, exists := playerConns[playerID]; exists {
+			// Try to close the old connection
+			oldConn.Close()
+			delete(playerConns, playerID)
+		}
+		// Keep the player object but update its connection
+		existingPlayer.X = x
+		existingPlayer.Y = y
+		playerConns[playerID] = conn
+		mu.Unlock()
+	} else {
+		// Create a new player
+		player := &Player{
+			ID:                   playerID,
+			X:                    x,
+			Y:                    y,
+			Username:             username,
+			LastSeenMsgTimestamp: 0, // Initialize to 0 to receive all messages initially
+		}
+		players[playerID] = player
+		playerConns[playerID] = conn
+		mu.Unlock()
+		existingPlayer = player
+
+		// Announce connection
+		addSystemMessage(fmt.Sprintf("%s connected", username))
 	}
 
-	// Prevent multiple logins
-	mu.Lock()
-	for _, p := range players {
-		if p.Username == username {
-			mu.Unlock()
-			response := &pb.ServerMessage{
-				AuthSuccess:  false,
-				ErrorMessage: "Account already logged in",
+	// Ensure player state is saved on any kind of disconnect
+	defer func() {
+		if p, exists := players[playerID]; exists {
+			if err := db.SavePlayerState(playerID, p.X, p.Y); err != nil {
+				log.Printf("Error saving state for player %d: %v", playerID, err)
 			}
-			writeMessage(conn, response)
-			return
 		}
-	}
-	players[playerID] = player
-	playerConns[playerID] = conn
-	mu.Unlock()
+		addSystemMessage(fmt.Sprintf("%s disconnected", username))
+		mu.Lock()
+		delete(players, playerID)
+		delete(playerConns, playerID)
+		delete(actionQueue, playerID)
+		mu.Unlock()
+		log.Printf("Player %d (%s) disconnected", playerID, username)
+	}()
 
 	// Send initial state with correct position
 	response = &pb.ServerMessage{
@@ -225,29 +257,13 @@ func handleConnection(conn net.Conn) {
 		ProtocolVersion: protoVersion,
 	}
 
-	addSystemMessage(fmt.Sprintf("%s connected", username))
-
-	// Ensure player state is saved on any kind of disconnect
-	defer func() {
-		if err := db.SavePlayerState(playerID, player.X, player.Y); err != nil {
-			log.Printf("Error saving state for player %d: %v", playerID, err)
-		}
-		addSystemMessage(fmt.Sprintf("%s disconnected", player.Username))
-		mu.Lock()
-		delete(players, playerID)
-		delete(playerConns, playerID)
-		delete(actionQueue, playerID)
-		mu.Unlock()
-		log.Printf("Player %d disconnected", playerID)
-	}()
-
 	// Send player ID to client
 	if err := writeMessage(conn, response); err != nil {
 		log.Printf("Failed to send player ID: %v", err)
 		return
 	}
 
-	fmt.Printf("Player %d connected\n", playerID)
+	log.Printf("Player %d (%s) connected successfully", playerID, username)
 
 	// Listen for incoming actions from this player
 	for {
@@ -276,6 +292,11 @@ func handleConnection(conn net.Conn) {
 			continue
 		}
 
+		// Update the last seen message timestamp
+		if batch.LastSeenMessageTimestamp > 0 {
+			existingPlayer.LastSeenMsgTimestamp = batch.LastSeenMessageTimestamp
+		}
+
 		// Queue the actions for processing
 		if batch.PlayerId == int32(playerID) {
 			for _, action := range batch.Actions {
@@ -284,7 +305,9 @@ func handleConnection(conn net.Conn) {
 					return
 				}
 			}
+			mu.Lock()
 			actionQueue[playerID] = append(actionQueue[playerID], batch.Actions...)
+			mu.Unlock()
 		}
 	}
 }
@@ -330,11 +353,30 @@ func addSystemMessage(content string) {
 
 func processActions() {
 	mu.Lock()
-	defer mu.Unlock()
+	// Make a list of players to process first, to avoid lock contention
+	activePlayers := make(map[int]*Player)
+	for id, p := range players {
+		activePlayers[id] = p
+	}
+	activeConns := make(map[int]net.Conn)
+	for id, conn := range playerConns {
+		activeConns[id] = conn
+	}
+	activeQueues := make(map[int][]*pb.Action)
+	for id, actions := range actionQueue {
+		if len(actions) > 0 {
+			activeQueues[id] = actions
+			actionQueue[id] = nil // Clear the queue early to avoid double processing
+		}
+	}
+	mu.Unlock()
 
-	// Update players based on queued actions
-	for playerID, actions := range actionQueue {
-		player := players[playerID]
+	// Process actions without holding the global lock
+	for playerID, actions := range activeQueues {
+		player, exists := activePlayers[playerID]
+		if !exists {
+			continue
+		}
 		player.Lock()
 		for _, action := range actions {
 			switch action.Type {
@@ -348,20 +390,21 @@ func processActions() {
 			}
 		}
 		player.Unlock()
-		actionQueue[playerID] = nil // Clear the action queue after processing
 	}
 
-	// Prepare and broadcast the current game state
+	// Prepare current game state
 	currentTick := time.Now().UnixNano() / int64(tickRate)
-	state := &pb.ServerMessage{
-		CurrentTick: currentTick,
-		Players:     make([]*pb.PlayerState, 0, len(players)),
-	}
 
-	// Convert players to PlayerState
-	for id, p := range players {
+	// Get recent messages for new connections
+	chatMutex.RLock()
+	recentMessages := chatHistory[max(0, len(chatHistory)-5):] // Get last 5 for new connections
+	chatMutex.RUnlock()
+
+	// To avoid holding locks too long, prepare player states first
+	playerStates := make([]*pb.PlayerState, 0, len(activePlayers))
+	for id, p := range activePlayers {
 		p.Lock()
-		state.Players = append(state.Players, &pb.PlayerState{
+		playerStates = append(playerStates, &pb.PlayerState{
 			PlayerId: int32(id),
 			X:        int32(p.X),
 			Y:        int32(p.Y),
@@ -370,15 +413,69 @@ func processActions() {
 		p.Unlock()
 	}
 
-	// Add chat messages to the state
-	chatMutex.RLock()
-	state.ChatMessages = chatHistory[max(0, len(chatHistory)-5):] // Only send last 5 messages
-	chatMutex.RUnlock()
+	// Now send updates to each player
+	for playerID, conn := range activeConns {
+		player, exists := activePlayers[playerID]
+		if !exists {
+			continue
+		}
 
-	// Send to each connected player
-	for _, conn := range playerConns {
+		state := &pb.ServerMessage{
+			CurrentTick: currentTick,
+			Players:     playerStates,
+		}
+
+		// Add chat messages - only send those the player hasn't seen
+		player.Lock()
+		lastSeen := player.LastSeenMsgTimestamp
+		player.Unlock()
+
+		chatMutex.RLock()
+		var newMessages []*pb.ChatMessage
+
+		// For new connections, send the 5 most recent messages
+		if lastSeen == 0 && len(recentMessages) > 0 {
+			newMessages = recentMessages
+			if len(newMessages) > 0 {
+				// Update the player's timestamp to the latest message
+				player.Lock()
+				player.LastSeenMsgTimestamp = newMessages[len(newMessages)-1].Timestamp
+				player.Unlock()
+			}
+		} else {
+			// For existing connections, only send new messages
+			for _, msg := range chatHistory {
+				if msg.Timestamp > lastSeen {
+					newMessages = append(newMessages, msg)
+				}
+			}
+
+			// Update the player's timestamp if we sent them new messages
+			if len(newMessages) > 0 {
+				player.Lock()
+				player.LastSeenMsgTimestamp = newMessages[len(newMessages)-1].Timestamp
+				player.Unlock()
+			}
+		}
+
+		state.ChatMessages = newMessages
+		chatMutex.RUnlock()
+
+		// Log the number of messages we're sending
+		if len(newMessages) > 0 {
+			log.Printf("Sending %d new messages to player %d", len(newMessages), playerID)
+		}
+
+		// Send the state to the player - do this without holding any locks
 		if err := writeMessage(conn, state); err != nil {
-			log.Printf("Failed to send update: %v", err)
+			log.Printf("Failed to send update to player %d: %v", playerID, err)
+
+			// Handle connection errors by removing the player
+			mu.Lock()
+			delete(players, playerID)
+			delete(playerConns, playerID)
+			delete(actionQueue, playerID)
+			mu.Unlock()
 		}
 	}
 }