diff --git a/lib/game_server.rb b/lib/game_server.rb
index ba8d824..ab31bcd 100644
--- a/lib/game_server.rb
+++ b/lib/game_server.rb
@@ -106,7 +106,7 @@ class GameServer
     puts "'#{packet.client.player.name}' joined the game"
   end
 
-  def on_rcon_cmd(chunk, _packet)
+  def on_rcon_cmd(chunk, packet)
     u = Unpacker.new(chunk.data[1..])
     command = u.get_string
     return if call_hook(:rcon_cmd, Context.new(nil, chunk:, packet:, command:)).nil?
@@ -114,7 +114,7 @@ class GameServer
 
     puts "[server] ClientID=#{packet.client.player.id} rcon='#{command}'"
     if command == 'shutdown'
-      @server.shutdown!
+      @server.shutdown!('Server shutdown')
     else
       puts "[console] No such command: #{command}:"
     end
@@ -128,6 +128,7 @@ class GameServer
     # TODO: we accept any password lol
     puts "[server] ClientID=#{packet.client.player.id} addr=#{packet.client.addr} authed (admin)"
     packet.client.authed = true
+    @server.send_rcon_auth_on(packet.client)
   end
 
   def on_input(chunk, packet)
@@ -147,6 +148,10 @@ class GameServer
   def on_shutdown
     return if call_hook(:shutdown, Context.new(nil)).nil?
 
+    puts '[gameserver] disconnecting all clients ...'
+    @server.clients.each do |id, client|
+      @server.send_ctrl_close(client, @server.shutdown_reason)
+    end
     puts '[gameserver] shutting down ...'
   end
 
diff --git a/lib/teeworlds_server.rb b/lib/teeworlds_server.rb
index d2c1122..1bed3ff 100644
--- a/lib/teeworlds_server.rb
+++ b/lib/teeworlds_server.rb
@@ -65,7 +65,7 @@ end
 
 class TeeworldsServer
   attr_accessor :clients
-  attr_reader :hooks
+  attr_reader :hooks, :shutdown_reason
 
   def initialize(options = {})
     @verbose = options[:verbose] || false
@@ -83,10 +83,12 @@ class TeeworldsServer
     }
     @thread_running = false
     @is_shutting_down = false
+    @shutdown_reason = ''
   end
 
-  def shutdown!
+  def shutdown!(reason)
     @is_shutting_down = true
+    @shutdown_reason = reason
   end
 
   def on_chat(&block)
@@ -260,6 +262,12 @@ class TeeworldsServer
     @netbase.send_packet(msg, chunks: 1, client:)
   end
 
+  def send_rcon_auth_on(client)
+    msg = NetChunk.create_header(vital: true, size: 1, client:) +
+          [pack_msg_id(NETMSG_RCON_AUTH_ON, system: true)]
+    @netbase.send_packet(msg, chunks: 1, client:)
+  end
+
   def send_ready(client)
     msg = NetChunk.create_header(vital: true, size: 1, client:) +
           [pack_msg_id(NETMSG_CON_READY, system: true)]