diff --git a/lib/network.rb b/lib/network.rb
index 4563c58..65a9876 100644
--- a/lib/network.rb
+++ b/lib/network.rb
@@ -117,3 +117,32 @@ MAX_PLAYERS = 16
 MAP_CHUNK_SIZE = NET_MAX_PAYLOAD - NET_MAX_CHUNKHEADERSIZE - 4 # msg type
 
 SERVER_TICK_SPEED = 50
+
+# should this be moved to some snap related file?
+
+NETOBJ_INVALID = 0
+NETOBJTYPE_PLAYERINPUT = 1
+NETOBJTYPE_PROJECTILE = 2
+NETOBJTYPE_LASER = 3
+NETOBJTYPE_PICKUP = 4
+NETOBJTYPE_FLAG = 5
+NETOBJTYPE_GAMEDATA = 6
+NETOBJTYPE_GAMEDATATEAM = 7
+NETOBJTYPE_GAMEDATAFLAG = 8
+NETOBJTYPE_CHARACTERCORE = 9
+NETOBJTYPE_CHARACTER = 10
+NETOBJTYPE_PLAYERINFO = 11
+NETOBJTYPE_SPECTATORINFO = 12
+NETOBJTYPE_DE_CLIENTINFO = 13
+NETOBJTYPE_DE_GAMEINFO = 14
+NETOBJTYPE_DE_TUNEPARAMS = 15
+NETEVENTTYPE_COMMON = 16
+NETEVENTTYPE_EXPLOSION = 17
+NETEVENTTYPE_SPAWN = 18
+NETEVENTTYPE_HAMMERHIT = 19
+NETEVENTTYPE_DEATH = 20
+NETEVENTTYPE_SOUNDWORLD = 21
+NETEVENTTYPE_DAMAGE = 22
+NETOBJTYPE_PLAYERINFORACE = 23
+NETOBJTYPE_GAMEDATARACE = 24
+NUM_NETOBJTYPE = 25
diff --git a/lib/snap_items/game_data.rb b/lib/snap_items/game_data.rb
new file mode 100644
index 0000000..11391c4
--- /dev/null
+++ b/lib/snap_items/game_data.rb
@@ -0,0 +1,58 @@
+# frozen_string_literal: true
+
+require_relative '../packer'
+
+class NetObj
+  class GameData
+    attr_accessor :game_start_tick, :game_state_flags, :game_state_end_tick
+
+    def initialize(hash_or_raw)
+      if hash_or_raw.instance_of?(Hash)
+        init_hash(hash_or_raw)
+      else
+        init_raw(hash_or_raw)
+      end
+      @fields = instance_variables.map { |f| f.to_s[1..] }
+      @size = @fields.count
+    end
+
+    def match_type?(type)
+      type == NETOBJTYPE_GAMEDATA
+    end
+
+    def init_raw(data)
+      u = Unpacker.new(data)
+      @game_start_tick = u.get_int
+      @game_state_flags = u.get_int
+      @game_state_end_tick = u.get_int
+    end
+
+    def init_hash(attr)
+      @game_start_tick = attr[:game_start_tick] || 0
+      @game_state_flags = attr[:game_state_flags] || 0
+      @game_state_end_tick = attr[:game_state_end_tick] || 0
+    end
+
+    def to_h
+      {
+        game_start_tick: @game_start_tick,
+        game_state_flags: @game_state_flags,
+        game_state_end_tick: @game_state_end_tick
+      }
+    end
+
+    # basically to_network
+    # int array the server sends to the client
+    def to_a
+      Packer.pack_int(@game_start_tick) +
+        Packer.pack_int(@game_state_flags) +
+        Packer.pack_int(@game_state_end_tick)
+    end
+
+    def to_s
+      to_h
+    end
+  end
+end
+
+p NetObj::GameData.new([])