diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7459337..2545480 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.20)
 
-project(MyEngine
+project(DeerithEngine
     VERSION 0.1
     LANGUAGES CXX
 )
diff --git a/deerith_engine_client/src/network/base_protocol.cpp b/deerith_engine_client/src/network/base_protocol.cpp
index ed1dc49..0c9c0d0 100644
--- a/deerith_engine_client/src/network/base_protocol.cpp
+++ b/deerith_engine_client/src/network/base_protocol.cpp
@@ -5,5 +5,5 @@
 
 void deerith::setup_base_protocols()
 {
-    router_add_packet_processor<sync_world_tick_t>();
+    router_add_packet_processor<sync_world_tick_packet_t>();
 }
\ No newline at end of file
diff --git a/deerith_engine_client/src/world/server_communication.cpp b/deerith_engine_client/src/world/server_communication.cpp
new file mode 100644
index 0000000..fa839ea
--- /dev/null
+++ b/deerith_engine_client/src/world/server_communication.cpp
@@ -0,0 +1,25 @@
+#include <deerith/engine.h>
+#include <deerith/network/router.h>
+#include <deerith/network/packets.h>
+#include <deerith/world/entity.h>
+#include <deerith/world.h>
+
+#include "world/world_internals.h"
+
+namespace deerith
+{
+}
+
+template <>
+void deerith::process_packet(deerith::sync_world_tick_packet_t &packet, client_t *client)
+{
+    deerith_trace("tick set to {}", packet.tick_id);
+    set_tick(packet.tick_id);
+}
+
+template <>
+void deerith::process_packet(deerith::create_player_entity_packet_t &packet, client_t *client)
+{
+    self_entity = create_entity();
+    add_component<entity_sync_client_position_t>(self_entity);
+}
\ No newline at end of file
diff --git a/deerith_engine_client/src/world/universe_render.cpp b/deerith_engine_client/src/world/universe_render.cpp
new file mode 100644
index 0000000..a9e95ab
--- /dev/null
+++ b/deerith_engine_client/src/world/universe_render.cpp
@@ -0,0 +1,5 @@
+#include <deerith/world.h>
+
+void deerith::render_world()
+{
+}
\ No newline at end of file
diff --git a/deerith_engine_client/src/world/world.cpp b/deerith_engine_client/src/world/world.cpp
index 48b96d9..a085132 100644
--- a/deerith_engine_client/src/world/world.cpp
+++ b/deerith_engine_client/src/world/world.cpp
@@ -1,8 +1,6 @@
 #include <deerith/engine.h>
 #include <deerith/world.h>
 
-#include <deerith/world/character_sync_interface.h>
-
 #include "network/network_internals.h"
 #include "world/world_internals.h"
 
@@ -14,7 +12,7 @@ namespace deerith
     std::unique_ptr<std::thread> world_thread;
     std::atomic<bool> world_running = false;
 
-    character_sync_interface_t character_sync_interface;
+    entity_t self_entity = entt::null;
 
     void world_simulation();
 }
@@ -55,7 +53,7 @@ void deerith::world_simulation()
             send_player_input();
         }
 
-        wait_till_next_click();
+        wait_till_next_tick();
     }
 
     world_running = false;
diff --git a/deerith_engine_client/src/world/world_internals.h b/deerith_engine_client/src/world/world_internals.h
index 19a5a1a..aae1ad7 100644
--- a/deerith_engine_client/src/world/world_internals.h
+++ b/deerith_engine_client/src/world/world_internals.h
@@ -1,7 +1,10 @@
 #pragma once
+#include <deerith/world.h>
 
 namespace deerith
 {
+    extern entity_t self_entity;
+
     void process_player_input();
     void send_player_input();
 }
diff --git a/deerith_engine_client/src/world/world_protocols.cpp b/deerith_engine_client/src/world/world_protocols.cpp
deleted file mode 100644
index 2dafda8..0000000
--- a/deerith_engine_client/src/world/world_protocols.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <deerith/packets/sync_world_tick.h>
-#include <deerith/network/router.h>
-#include <deerith/world.h>
-
-namespace deerith
-{
-}
-
-template <>
-void deerith::process_packet(sync_world_tick_t &world_tick, client_t *client)
-{
-    deerith_trace("sync_world_tick_t tick set to {}", world_tick.tick_id);
-    set_tick(world_tick.tick_id);
-}
\ No newline at end of file
diff --git a/deerith_engine_core/CMakeLists.txt b/deerith_engine_core/CMakeLists.txt
index 4614558..0ac2bf1 100644
--- a/deerith_engine_core/CMakeLists.txt
+++ b/deerith_engine_core/CMakeLists.txt
@@ -38,5 +38,6 @@ target_link_libraries(DeerithCore
         spdlog::spdlog
         fmt::fmt
         glm::glm
+        EnTT::EnTT
         ${ENET_LIBRARY}
 )
\ No newline at end of file
diff --git a/deerith_engine_core/include/deerith/network/client.h b/deerith_engine_core/include/deerith/network/client.h
index eb02856..7723cdc 100644
--- a/deerith_engine_core/include/deerith/network/client.h
+++ b/deerith_engine_core/include/deerith/network/client.h
@@ -1,11 +1,17 @@
 #pragma once
 #include <enet/enet.h>
+#include <entt/entt.hpp>
 
 namespace deerith
 {
+    using entity_registry_t = entt::registry;
+    using entity_t = entt::entity;
+
     struct client_t
     {
-        client_t(ENetPeer *_peer) : peer(_peer) {}
         ENetPeer *peer;
+        entity_t entity_id = entt::null;
+
+        client_t(ENetPeer *_peer) : peer(_peer) {}
     };
 }
\ No newline at end of file
diff --git a/deerith_engine_core/include/deerith/packets/sync_world_tick.h b/deerith_engine_core/include/deerith/network/packets.h
similarity index 63%
rename from deerith_engine_core/include/deerith/packets/sync_world_tick.h
rename to deerith_engine_core/include/deerith/network/packets.h
index 8667d08..5391317 100644
--- a/deerith_engine_core/include/deerith/packets/sync_world_tick.h
+++ b/deerith_engine_core/include/deerith/network/packets.h
@@ -3,7 +3,7 @@
 
 namespace deerith
 {
-    struct sync_world_tick_t
+    struct sync_world_tick_packet_t
     {
         static constexpr uint16_t packet_id = 1;
         static constexpr bool reliable = true;
@@ -16,4 +16,10 @@ namespace deerith
             archive(tick_id);
         }
     };
+
+    struct create_player_entity_packet_t
+    {
+        static constexpr uint16_t packet_id = 2;
+        static constexpr bool reliable = true;
+    };
 }
\ No newline at end of file
diff --git a/deerith_engine_core/include/deerith/packets/sync_character_interface.h b/deerith_engine_core/include/deerith/packets/sync_character_interface.h
deleted file mode 100644
index 6cad0b9..0000000
--- a/deerith_engine_core/include/deerith/packets/sync_character_interface.h
+++ /dev/null
@@ -1,30 +0,0 @@
-#pragma once
-#include <deerith/engine.h>
-#include <deerith/world/character_sync_interface.h>
-
-namespace deerith
-{
-    struct sync_character_interface_t
-    {
-        static constexpr uint16_t packet_id = 2;
-        static constexpr bool reliable = false;
-
-        sync_variable_transport_t<glm::vec2> move_input_transport;
-
-        void load(const character_sync_interface_t &ci)
-        {
-            move_input_transport.load(ci.move_input);
-        }
-
-        void dipose(character_sync_interface_t &ci)
-        {
-            move_input_transport.load(ci.move_input);
-        }
-
-        template <typename Archive>
-        void serialize(Archive &archive)
-        {
-            archive(move_input_transport);
-        }
-    };
-}
\ No newline at end of file
diff --git a/deerith_engine_core/include/deerith/world/character_sync_interface.h b/deerith_engine_core/include/deerith/world/character_sync_interface.h
deleted file mode 100644
index e11a1f5..0000000
--- a/deerith_engine_core/include/deerith/world/character_sync_interface.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#pragma once
-#include <deerith/network/sync_variable.h>
-
-namespace deerith
-{
-    struct character_sync_interface_t
-    {
-        sync_variable_t<glm::vec2> move_input;
-        sync_variable_t<glm::vec2> position;
-    };
-}
\ No newline at end of file
diff --git a/deerith_engine_core/include/deerith/world/entity.h b/deerith_engine_core/include/deerith/world/entity.h
new file mode 100644
index 0000000..b66a437
--- /dev/null
+++ b/deerith_engine_core/include/deerith/world/entity.h
@@ -0,0 +1,19 @@
+#pragma once
+#include <deerith/network/client.h>
+#include <deerith/network/sync_variable.h>
+
+namespace deerith
+{
+    // struct for linking a entity to a client, mostly in the server
+    struct entity_link_to_client_t
+    {
+        client_t *client = nullptr;
+    };
+
+    // struct for linking a entity to a client
+    struct entity_sync_client_position_t
+    {
+        sync_variable_t<glm::vec2> move_input;
+        sync_variable_t<glm::vec2> position;
+    };
+}
\ No newline at end of file
diff --git a/deerith_engine_core/include/deerith/world/world_core.h b/deerith_engine_core/include/deerith/world/world_core.h
index cb6f955..0af86fc 100644
--- a/deerith_engine_core/include/deerith/world/world_core.h
+++ b/deerith_engine_core/include/deerith/world/world_core.h
@@ -1,11 +1,29 @@
 #pragma once
 #include <deerith/engine.h>
+#include <entt/entt.hpp>
 
 namespace deerith
 {
+    using entity_registry_t = entt::registry;
+    using entity_t = entt::entity;
+
     uint32_t get_world_tick();
-    void wait_till_next_click();
+    void wait_till_next_tick();
 
     void set_tick(uint32_t);
 
+    entity_registry_t &get_entity_registry_t();
+    inline entity_t create_entity() { return get_entity_registry_t().create(); }
+
+    template <typename T>
+    T &add_component(entity_t ent)
+    {
+        return get_entity_registry_t().emplace<T>(ent);
+    }
+
+    template <typename T>
+    T &get_component(entity_t ent)
+    {
+        return get_entity_registry_t().get<T>(ent);
+    }
 }
diff --git a/deerith_engine_core/src/internal.h b/deerith_engine_core/src/internal.h
index df4702b..6e08029 100644
--- a/deerith_engine_core/src/internal.h
+++ b/deerith_engine_core/src/internal.h
@@ -6,4 +6,5 @@ namespace deerith
 
     void init_network();
     void shutdown_network();
+
 }
\ No newline at end of file
diff --git a/deerith_engine_core/src/tick.cpp b/deerith_engine_core/src/tick.cpp
index a674080..933ee31 100644
--- a/deerith_engine_core/src/tick.cpp
+++ b/deerith_engine_core/src/tick.cpp
@@ -18,7 +18,7 @@ uint32_t deerith::get_world_tick()
     return tick_id;
 }
 
-void deerith::wait_till_next_click()
+void deerith::wait_till_next_tick()
 {
     using clock = std::chrono::steady_clock;
 
diff --git a/deerith_engine_core/src/world.cpp b/deerith_engine_core/src/world.cpp
new file mode 100644
index 0000000..c305590
--- /dev/null
+++ b/deerith_engine_core/src/world.cpp
@@ -0,0 +1,11 @@
+#include <deerith/world/world_core.h>
+
+namespace deerith
+{
+    entity_registry_t entity_registry;
+}
+
+entt::registry &deerith::get_entity_registry_t()
+{
+    return entity_registry;
+}
diff --git a/deerith_engine_server/src/network/network.cpp b/deerith_engine_server/src/network/network.cpp
index 772f636..fa6bb56 100644
--- a/deerith_engine_server/src/network/network.cpp
+++ b/deerith_engine_server/src/network/network.cpp
@@ -12,6 +12,7 @@
 #include <memory>
 
 #include "network_internals.h"
+#include "world/world_internals.h"
 
 namespace deerith
 {
@@ -88,13 +89,9 @@ void deerith::create_client(ENetPeer *peer)
     enet_address_get_host_ip(&peer->address, enet_address, 31);
     deerith_trace("a new client has connected : {}", enet_address);
 
-    sync_world_tick_t sync_world_tick;
-    sync_world_tick.tick_id = get_world_tick();
-
     std::unique_ptr<client_t> client = std::make_unique<client_t>(peer);
     peer->data = client.get();
 
     clients.push_back(std::move(client));
-
-    router_send_packet<sync_world_tick_t>(sync_world_tick, (client_t *)peer->data);
+    client_connects((client_t *)peer->data);
 }
\ No newline at end of file
diff --git a/deerith_engine_server/src/network/network_internals.h b/deerith_engine_server/src/network/network_internals.h
index 5722c1b..414efe5 100644
--- a/deerith_engine_server/src/network/network_internals.h
+++ b/deerith_engine_server/src/network/network_internals.h
@@ -11,5 +11,4 @@ namespace deerith
     void flush_network_events();
 
     void load_base_protocols();
-
 }
\ No newline at end of file
diff --git a/deerith_engine_server/src/world.cpp b/deerith_engine_server/src/world.cpp
index 352852e..6fba7de 100644
--- a/deerith_engine_server/src/world.cpp
+++ b/deerith_engine_server/src/world.cpp
@@ -1,7 +1,12 @@
 #include <deerith/world.h>
-
 #include <deerith/core/log.h>
+#include <deerith/network/router.h>
+
 #include "network/network_internals.h"
+#include "world/world_internals.h"
+
+#include <deerith/world/entity.h>
+#include <deerith/packets.h>
 
 #include <csignal>
 #include <atomic>
@@ -47,5 +52,23 @@ void deerith::world_simulation()
 
     // process movments
 
-    wait_till_next_click();
+    wait_till_next_tick();
+}
+
+void deerith::client_connects(client_t *client)
+{
+    sync_world_tick_packet_t sync_world_tick;
+    sync_world_tick.tick_id = get_world_tick();
+
+    create_player_entity_packet_t create_player_entity;
+
+    router_send_packet(sync_world_tick, client);
+    router_send_packet(create_player_entity, client);
+
+    entity_t entity = create_entity();
+    entity_link_to_client_t &link = add_component<entity_link_to_client_t>(entity);
+    entity_sync_client_position_t &position_sync = add_component<entity_sync_client_position_t>(entity);
+
+    link.client = client;
+    client->entity_id = entity;
 }
diff --git a/deerith_engine_server/src/world/character_sync.cpp b/deerith_engine_server/src/world/character_sync.cpp
index 774598f..e69de29 100644
--- a/deerith_engine_server/src/world/character_sync.cpp
+++ b/deerith_engine_server/src/world/character_sync.cpp
@@ -1,15 +0,0 @@
-#include <deerith/engine.h>
-
-#include <deerith/packets/sync_character_interface.h>
-#include <deerith/network/router.h>
-
-namespace deerith
-{
-
-}
-
-template <>
-void deerith::process_packet(sync_character_interface_t &interface, client_t *client)
-{
-    deerith_trace("sync player input {} {}");
-}
diff --git a/deerith_engine_server/src/world/player_communication.cpp b/deerith_engine_server/src/world/player_communication.cpp
new file mode 100644
index 0000000..774598f
--- /dev/null
+++ b/deerith_engine_server/src/world/player_communication.cpp
@@ -0,0 +1,15 @@
+#include <deerith/engine.h>
+
+#include <deerith/packets/sync_character_interface.h>
+#include <deerith/network/router.h>
+
+namespace deerith
+{
+
+}
+
+template <>
+void deerith::process_packet(sync_character_interface_t &interface, client_t *client)
+{
+    deerith_trace("sync player input {} {}");
+}
diff --git a/deerith_engine_server/src/world/world_internals.h b/deerith_engine_server/src/world/world_internals.h
index 5b1d841..2e3eb97 100644
--- a/deerith_engine_server/src/world/world_internals.h
+++ b/deerith_engine_server/src/world/world_internals.h
@@ -1,6 +1,8 @@
 #pragma once
+#include <deerith/network/client.h>
 
 namespace deerith
 {
     void update_players_characters();
+    void client_connects(client_t *client);
 }
\ No newline at end of file