diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7c3afb7..d310dec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,7 @@ endif()
 
 include_directories(code/common code/vendors code/vendors/flecs)
 
+add_subdirectory(code/modules)
 add_subdirectory(code/common)
 add_subdirectory(code/vendors)
 
diff --git a/code/apps/client/CMakeLists.txt b/code/apps/client/CMakeLists.txt
index 72f5777..c39682f 100644
--- a/code/apps/client/CMakeLists.txt
+++ b/code/apps/client/CMakeLists.txt
@@ -17,9 +17,9 @@ add_executable(eco2d-cli
   source/platform_text.c
 )
 
-set(LIBS client-common cwpack eco2d-common)
+set(LIBS client-common cwpack eco2d-common eco2d-modules flecs-bundle)
 
-include_directories(header)
+include_directories(header ../../modules)
 target_link_libraries(eco2d-client raylib ${LIBS})
 target_link_libraries(eco2d-cli ${LIBS})
 
diff --git a/code/apps/client/source/main.c b/code/apps/client/source/main.c
index d467957..a505822 100644
--- a/code/apps/client/source/main.c
+++ b/code/apps/client/source/main.c
@@ -1,27 +1,125 @@
 #define ZPL_IMPL
 #include "zpl.h"
+#include "system.h"
 #include "game.h"
+#include "world/world.h"
+#include "packets/packet.h"
 #include "signal_handling.h"
 #include "network.h"
 
-int main(void)
-{
-    sighandler_register();
-    game_init();
-    network_init();
-    network_client_connect("127.0.0.1", 27000);
+#include "flecs/flecs.h"
+#include "flecs/flecs_dash.h"
+#include "flecs/flecs_systems_civetweb.h"
+#include "flecs/flecs_os_api_stdcpp.h"
 
+#define DEFAULT_WORLD_SEED 302097
+#define DEFAULT_BLOCK_SIZE 64 /* amount of units within a block (single axis) */
+#define DEFAULT_CHUNK_SIZE 3 /* amount of blocks within a chunk (single axis) */
+#define DEFAULT_WORLD_SIZE 8 /* amount of chunks within a world (single axis) */
+
+static WORLD_PKT_READER(pkt_reader) {
+    pkt_header header = {0};
+    uint32_t ok = pkt_header_decode(&header, data, datalen);
+    
+    if (ok && header.ok) {
+        return pkt_handlers[header.id].handler(&header);
+    } else {
+        zpl_printf("[warn] unknown packet id %d (header %d data %d)\n", header.id, ok, header.ok);
+    }
+    return -1;
+}
+
+static WORLD_PKT_WRITER(sp_pkt_writer) {
+    return world_read(pkt->data, pkt->datalen);
+}
+
+static WORLD_PKT_WRITER(mp_pkt_writer) {
+    return 0; // TODO(zaklaus): enet send packet
+}
+
+inline int32_t pkt_world_write(pkt_messages id, size_t pkt_size, int8_t is_reliable) {
+    pkt_header pkt;
+    PKT_IF(pkt_prep_msg(&pkt, id, pkt_size, is_reliable));
+    return world_write(&pkt);
+}
+
+int main(int argc, char** argv)
+{
+    zpl_opts opts={0};
+    zpl_opts_init(&opts, zpl_heap(), argv[0]);
+    
+    zpl_opts_add(&opts, "?", "help", "the HELP section", ZPL_OPTS_FLAG);
+    zpl_opts_add(&opts, "s", "single-player", "play single-player game.", ZPL_OPTS_FLAG);
+    zpl_opts_add(&opts, "s", "seed", "world seed", ZPL_OPTS_INT);
+    zpl_opts_add(&opts, "r", "random-seed", "generate random world seed", ZPL_OPTS_FLAG);
+    zpl_opts_add(&opts, "bs", "block-size", "amount of units within a block (single axis)", ZPL_OPTS_INT);
+    zpl_opts_add(&opts, "cs", "chunk-size", "amount of blocks within a chunk (single axis)", ZPL_OPTS_INT);
+    zpl_opts_add(&opts, "ws", "world-size", "amount of chunks within a world (single axis)", ZPL_OPTS_INT);
+    
+    uint32_t ok = zpl_opts_compile(&opts, argc, argv);
+    
+    if (!ok) {
+        zpl_opts_print_errors(&opts);
+        zpl_opts_print_help(&opts);
+        return -1;
+    }
+    
+    uint8_t is_networked_play = !zpl_opts_has_arg(&opts, "single-player");
+    int32_t seed = zpl_opts_integer(&opts, "seed", DEFAULT_WORLD_SEED);
+    uint16_t block_size = zpl_opts_integer(&opts, "block-size", DEFAULT_BLOCK_SIZE);
+    uint16_t chunk_size = zpl_opts_integer(&opts, "chunk-size", DEFAULT_CHUNK_SIZE);
+    uint16_t world_size = zpl_opts_integer(&opts, "world-size", DEFAULT_WORLD_SIZE);
+    
+    if (zpl_opts_has_arg(&opts, "random-seed")) {
+        zpl_random rnd={0};
+        zpl_random_init(&rnd);
+        seed = zpl_random_gen_u32(&rnd);
+        zpl_printf("Seed: %u\n", seed);
+    }
+    
+    sighandler_register();
+    stdcpp_set_os_api();
+    game_init();
+    
+    if (is_networked_play) {
+        world_init_minimal(0, 0, 0, pkt_reader, mp_pkt_writer);
+        network_init();
+        network_client_connect("127.0.0.1", 27000);
+    } else {
+        world_init(seed, block_size, chunk_size, world_size, pkt_reader, sp_pkt_writer);
+        
+        pkt_01_welcome table = {.block_size = block_size, .chunk_size = chunk_size, .world_size = world_size};
+        pkt_world_write(MSG_ID_01_WELCOME, pkt_01_welcome_encode(&table), 1);
+    }
+    
+    /* server dashboard */
+    {
+        ECS_IMPORT(world_ecs(), FlecsDash);
+        ECS_IMPORT(world_ecs(), FlecsSystemsCivetweb);
+        
+        ecs_set(world_ecs(), 0, EcsDashServer, {.port = 27001});
+        ecs_set_target_fps(world_ecs(), 60);
+    }
+    
     while (game_is_running())
     {
         game_input();
         game_update();
         game_render();
-        network_client_tick();
+        if (is_networked_play) network_client_tick();
+        else world_update();
     }
 
-    network_client_disconnect();
     game_shutdown();
     sighandler_unregister();
-    network_destroy();
+    
+    if (is_networked_play) {
+        network_client_disconnect();
+        network_destroy();
+    } else {
+        world_destroy();
+    }
+    
+    zpl_opts_free(&opts);
     return 0;
 }
diff --git a/code/apps/playground/CMakeLists.txt b/code/apps/playground/CMakeLists.txt
index 102eb59..ee504df 100644
--- a/code/apps/playground/CMakeLists.txt
+++ b/code/apps/playground/CMakeLists.txt
@@ -2,6 +2,6 @@ add_executable(playground
   source/main.c
 )
 
-include_directories(header)
-target_link_libraries(playground eco2d-common cwpack)
+include_directories(header ../modules ../common)
+target_link_libraries(playground eco2d-common eco2d-modules flecs-bundle cwpack)
 link_system_libs(playground)
diff --git a/code/apps/playground/source/main.c b/code/apps/playground/source/main.c
index 324efef..c1e8723 100644
--- a/code/apps/playground/source/main.c
+++ b/code/apps/playground/source/main.c
@@ -2,7 +2,10 @@
 #define ZPL_NANO
 #include <zpl.h>
 
-#include "mock.h"
+#define LIBRG_IMPL
+#define LIBRG_CUSTOM_ZPL
+#include "librg.h"
+
 #include "packets/packet.h"
 
 int32_t mock_pkt_decode(pkt_desc *desc, uint32_t args, size_t msg_size, void *data, uint32_t size) {
@@ -15,21 +18,17 @@ int32_t mock_pkt_decode(pkt_desc *desc, uint32_t args, size_t msg_size, void *da
 
 int main(void) {
     pkt_01_welcome test_data = {
-        .chunk_size = world_chunk_size(),
-        .chunk_amount = world_chunk_amount()
+        .chunk_size = 4,
+        .world_size = 8
     };
     
-    for (int i = 0; i < 4; i += 1){
-        test_data.numbers[i] = i*2;
-    }
-    
     size_t msg_size = pkt_01_welcome_encode(&test_data);
     pkt_01_welcome resp = {0};
     if (mock_pkt_decode(pkt_01_welcome_desc, 3, msg_size, PKT_STRUCT_PTR(&resp))) {
         zpl_printf("[err] oopsie!\n");
     }
     
-    zpl_printf("size %d, amt %d, num[1] %d struct %d msg %d\n", resp.chunk_size, resp.chunk_amount, resp.numbers[1], sizeof(pkt_01_welcome), msg_size);
+    zpl_printf("size %d, amt %d, struct %d msg %d\n", resp.chunk_size, resp.world_size, sizeof(pkt_01_welcome), msg_size);
     
     return 0;
 }
diff --git a/code/apps/server/CMakeLists.txt b/code/apps/server/CMakeLists.txt
index f1730be..fb87034 100644
--- a/code/apps/server/CMakeLists.txt
+++ b/code/apps/server/CMakeLists.txt
@@ -1,22 +1,13 @@
-add_subdirectory(modules)
-
 add_executable(eco2d-server
   source/main.c
   source/network.c
   source/utils/options.c
-  source/world/perlin.c
-  source/world/world.c
-  source/world/blocks.c
 
   header/network.h
   header/utils/options.h
-  header/world/perlin.h
-  header/world/world.h
-  header/world/blocks.h
-  header/world/blocks_info.h
 )
 
-include_directories(header modules)
+include_directories(header ../../modules)
 target_compile_definitions(eco2d-server PRIVATE SERVER)
 target_link_libraries(eco2d-server eco2d-common eco2d-modules flecs-bundle cwpack)
 link_system_libs(eco2d-server)
diff --git a/code/apps/server/header/world/blocks.h b/code/apps/server/header/world/blocks.h
deleted file mode 100644
index 4f6ec36..0000000
--- a/code/apps/server/header/world/blocks.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#pragma once
-#include "system.h"
-
-#define BLOCK_INVALID 0xF
-
-typedef enum {
-    BLOCK_FLAG_COLLISION = (1 << 0)
-} block_flags;
-
-#include "blocks_info.h"
-
-uint8_t blocks_find(uint32_t biome, uint32_t kind);
-
-char *blocks_get_name(uint8_t id);
-uint8_t blocks_get_tex_id(uint8_t id);
-char blocks_get_symbol(uint8_t id);
-uint32_t blocks_get_flags(uint8_t id);
-uint32_t blocks_get_biome(uint8_t id);
-uint32_t blocks_get_kind(uint8_t id);
diff --git a/code/apps/server/header/world/blocks_info.h b/code/apps/server/header/world/blocks_info.h
deleted file mode 100644
index 34a9aae..0000000
--- a/code/apps/server/header/world/blocks_info.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#pragma once
-
-typedef enum {
-    BLOCK_KIND_DEV,
-    BLOCK_KIND_GROUND,
-    BLOCK_KIND_WATER,
-    BLOCK_KIND_WALL,
-    BLOCK_KIND_HILL,
-    BLOCK_KIND_HILL_SNOW,
-    BLOCK_KIND_HOLE,
-} block_kind;
-
-typedef enum {
-    BLOCK_BIOME_DEV,
-    BLOCK_BIOME_PLAIN,
-    BLOCK_BIOME_FOREST,
-    BLOCK_BIOME_DESERT,
-    BLOCK_BIOME_ICE,
-    BLOCK_BIOME_OCEAN,
-} block_biome;
diff --git a/code/apps/server/header/world/perlin.h b/code/apps/server/header/world/perlin.h
deleted file mode 100644
index 66f184d..0000000
--- a/code/apps/server/header/world/perlin.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#pragma once
-
-#include "system.h"
-
-double perlin_noise2d(int32_t seed, double x, double y);
-double perlin_fbm(int32_t seed, double x, double y, double freq, uint32_t octaves);
diff --git a/code/apps/server/header/world/world.h b/code/apps/server/header/world/world.h
deleted file mode 100644
index f6c7b1b..0000000
--- a/code/apps/server/header/world/world.h
+++ /dev/null
@@ -1,22 +0,0 @@
-#pragma once
-#include "system.h"
-#include "librg.h"
-#include "flecs/flecs.h"
-
-#define WORLD_ERROR_NONE                +0x0000
-#define WORLD_ERROR_OUTOFMEM            -0x0001
-#define WORLD_ERROR_INVALID_BLOCKS      -0x0002
-#define WORLD_ERROR_INVALID_DIMENSIONS  -0x0003
-#define WORLD_ERROR_INVALID_BUFFER      -0x0004
-#define WORLD_ERROR_TRACKER_FAILED      -0x0005
-
-int32_t world_init(int32_t seed, uint16_t block_size, uint16_t chunk_size, uint16_t world_size);
-int32_t world_destroy(void);
-int32_t world_update(void);
-
-uint32_t world_buf(uint8_t const **ptr, uint32_t *width);
-ecs_world_t * world_ecs(void);
-librg_world * world_tracker(void);
-
-uint16_t world_chunk_size(void);
-uint16_t world_chunk_amount(void);
\ No newline at end of file
diff --git a/code/apps/server/modules/CMakeLists.txt b/code/apps/server/modules/CMakeLists.txt
deleted file mode 100644
index 889cca7..0000000
--- a/code/apps/server/modules/CMakeLists.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-file(GLOB MODULES modules/*.h source/*.c)
-add_library(eco2d-modules STATIC ${MODULES})
-include_directories(.)
diff --git a/code/apps/server/modules/modules/controllers.h b/code/apps/server/modules/modules/controllers.h
deleted file mode 100644
index 9363743..0000000
--- a/code/apps/server/modules/modules/controllers.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#pragma once
-#include "flecs/flecs.h"
-#include "flecs/flecs_meta.h"
-
-ECS_STRUCT(Input, {
-    double x;
-    double y;
-    uint8_t use;
-});
-
-typedef struct {
-    ECS_DECLARE_COMPONENT(Input);
-    ECS_DECLARE_ENTITY(EcsActor);
-    ECS_DECLARE_ENTITY(EcsPlayer);
-    ECS_DECLARE_ENTITY(EcsBuilder);
-    ECS_DECLARE_TYPE(Player);
-    ECS_DECLARE_TYPE(Builder);
-} Controllers;
-
-#define ControllersImportHandles(handles)\
-    ECS_IMPORT_COMPONENT(handles, Input);\
-    ECS_IMPORT_TYPE(handles, Player);\
-    ECS_IMPORT_TYPE(handles, Builder);\
-    ECS_IMPORT_ENTITY(handles, EcsActor);\
-    ECS_IMPORT_ENTITY(handles, EcsPlayer);\
-    ECS_IMPORT_ENTITY(handles, EcsBuilder);\
-
-void ControllersImport(ecs_world_t *ecs);
diff --git a/code/apps/server/modules/modules/general.h b/code/apps/server/modules/modules/general.h
deleted file mode 100644
index 448168b..0000000
--- a/code/apps/server/modules/modules/general.h
+++ /dev/null
@@ -1,30 +0,0 @@
-#pragma once
-#include "flecs/flecs.h"
-#include "flecs/flecs_meta.h"
-
-ECS_STRUCT(Vector2D, {
-    int16_t x;
-    int16_t y;
-});
-
-ECS_STRUCT(Drawable, {
-    uint16_t id;
-});
-
-ECS_ALIAS(Vector2D, Chunk);
-ECS_ALIAS(Vector2D, Position);
-
-typedef struct {
-    ECS_DECLARE_COMPONENT(Chunk);
-    ECS_DECLARE_COMPONENT(Position);
-    ECS_DECLARE_COMPONENT(Vector2D);
-    ECS_DECLARE_COMPONENT(Drawable);
-} General;
-
-#define GeneralImportHandles(handles)\
-    ECS_IMPORT_COMPONENT(handles, Chunk);\
-    ECS_IMPORT_COMPONENT(handles, Vector2D);\
-    ECS_IMPORT_COMPONENT(handles, Position);\
-    ECS_IMPORT_COMPONENT(handles, Drawable);\
-
-void GeneralImport(ecs_world_t *ecs);
diff --git a/code/apps/server/modules/modules/net.h b/code/apps/server/modules/modules/net.h
deleted file mode 100644
index 349b6bc..0000000
--- a/code/apps/server/modules/modules/net.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#pragma once
-#include "flecs/flecs.h"
-#include "flecs/flecs_meta.h"
-
-ECS_STRUCT(ClientInfo, {
-    uint16_t peer_id;
-});
-
-typedef struct {
-    ECS_DECLARE_ENTITY(EcsClient);
-    ECS_DECLARE_COMPONENT(ClientInfo);
-} Net;
-
-#define NetImportHandles(handles)\
-    ECS_IMPORT_ENTITY(handles, EcsClient);\
-    ECS_IMPORT_COMPONENT(handles, ClientInfo);\
-
-void NetImport(ecs_world_t *ecs);
diff --git a/code/apps/server/modules/modules/physics.h b/code/apps/server/modules/modules/physics.h
deleted file mode 100644
index 031247f..0000000
--- a/code/apps/server/modules/modules/physics.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#pragma once
-#include "flecs/flecs.h"
-
-#include "modules/general.h"
-
-typedef Vector2D Velocity;
-
-typedef struct {
-    ECS_DECLARE_TYPE(Movement);
-    ECS_DECLARE_ENTITY(Walking);
-    ECS_DECLARE_ENTITY(Flying);
-    ECS_DECLARE_COMPONENT(Velocity);
-    ECS_DECLARE_ENTITY(MoveWalk);
-} Physics;
-
-#define PhysicsImportHandles(handles)\
-    ECS_IMPORT_TYPE(handles, Movement);\
-    ECS_IMPORT_ENTITY(handles, Walking);\
-    ECS_IMPORT_ENTITY(handles, Flying);\
-    ECS_IMPORT_COMPONENT(handles, Velocity);\
-    ECS_IMPORT_ENTITY(handles, MoveWalk);\
-
-void PhysicsImport(ecs_world_t *ecs);
diff --git a/code/apps/server/modules/source/controllers.c b/code/apps/server/modules/source/controllers.c
deleted file mode 100644
index 5f67ea5..0000000
--- a/code/apps/server/modules/source/controllers.c
+++ /dev/null
@@ -1,30 +0,0 @@
-#include "modules/controllers.h"
-
-#include "modules/general.h"
-#include "modules/physics.h"
-
-void ControllersImport(ecs_world_t *ecs) {
-    ECS_MODULE(ecs, Controllers);
-    ecs_set_name_prefix(ecs, "Controllers");
-
-    ECS_IMPORT(ecs, General);
-    ECS_IMPORT(ecs, Physics);
-
-    ECS_IMPORT(ecs, FlecsMeta);
-    ECS_META(ecs, Input);
-
-    ECS_TAG(ecs, EcsActor);
-    ECS_TAG(ecs, EcsPlayer);
-    ECS_TAG(ecs, EcsBuilder);
-
-    ECS_PREFAB(ecs, Base, general.Position, physics.Velocity, Input, EcsActor);
-    ECS_TYPE(ecs, Player, INSTANCEOF | Base, SWITCH | physics.Movement, CASE | physics.Walking, EcsActor, EcsPlayer);
-    ECS_TYPE(ecs, Builder, INSTANCEOF | Base, SWITCH | physics.Movement, CASE | physics.Flying, EcsActor, EcsBuilder);
-
-    ECS_SET_COMPONENT(Input);
-    ECS_SET_ENTITY(EcsActor);
-    ECS_SET_ENTITY(EcsPlayer);
-    ECS_SET_ENTITY(EcsBuilder);
-    ECS_SET_TYPE(Builder);
-    ECS_SET_TYPE(Player);
-}
diff --git a/code/apps/server/modules/source/general.c b/code/apps/server/modules/source/general.c
deleted file mode 100644
index 5aa3411..0000000
--- a/code/apps/server/modules/source/general.c
+++ /dev/null
@@ -1,19 +0,0 @@
-#include "modules/general.h"
-
-void GeneralImport(ecs_world_t *ecs) {
-    ECS_MODULE(ecs, General);
-    ecs_set_name_prefix(ecs, "General");
-
-    ECS_COMPONENT(ecs, Chunk);
-    ECS_COMPONENT(ecs, Position);
-
-    ECS_IMPORT(ecs, FlecsMeta);
-
-    ECS_META(ecs, Vector2D);
-    ECS_META(ecs, Drawable);
-
-    ECS_SET_COMPONENT(Chunk);
-    ECS_SET_COMPONENT(Vector2D);
-    ECS_SET_COMPONENT(Position);
-    ECS_SET_COMPONENT(Drawable);
-}
diff --git a/code/apps/server/modules/source/net.c b/code/apps/server/modules/source/net.c
deleted file mode 100644
index 084441c..0000000
--- a/code/apps/server/modules/source/net.c
+++ /dev/null
@@ -1,16 +0,0 @@
-#include "modules/net.h"
-
-void NetImport(ecs_world_t *ecs) {
-    ECS_MODULE(ecs, Net);
-
-    ecs_set_name_prefix(ecs, "Net");
-
-    ECS_TAG(ecs, EcsClient);
-
-    ECS_IMPORT(ecs, FlecsMeta);
-
-    ECS_META(ecs, ClientInfo);
-
-    ECS_EXPORT_ENTITY(EcsClient);
-    ECS_EXPORT_COMPONENT(ClientInfo);
-}
diff --git a/code/apps/server/modules/source/physics.c b/code/apps/server/modules/source/physics.c
deleted file mode 100644
index e9c6fe5..0000000
--- a/code/apps/server/modules/source/physics.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include "modules/physics.h"
-
-void MoveWalk(ecs_iter_t *it) {
-    Position *p = ecs_column(it, Position, 1);
-    Velocity *v = ecs_column(it, Velocity, 2);
-
-    for (int i = 0; i < it->count; i++) {
-        // TODO: handle collisions
-        p[i].x += v[i].x * it->delta_time;
-        p[i].y += v[i].y * it->delta_time;
-    }
-}
-
-void PhysicsImport(ecs_world_t *ecs) {
-    ECS_MODULE(ecs, Physics);
-    ecs_set_name_prefix(ecs, "Physics");
-
-    ECS_TAG(ecs, Walking);
-    ECS_TAG(ecs, Flying);
-    ECS_TYPE(ecs, Movement, Walking, Flying);
-
-    ECS_COMPONENT(ecs, Velocity);
-
-    ECS_SYSTEM(ecs, MoveWalk, EcsOnUpdate, general.Position, Velocity, SWITCH | Movement, CASE | Walking);
-
-    ECS_SET_TYPE(Movement);
-    ECS_SET_ENTITY(Walking);
-    ECS_SET_ENTITY(Flying);
-    ECS_SET_COMPONENT(Velocity);
-    ECS_SET_ENTITY(MoveWalk);
-}
diff --git a/code/apps/server/source/main.c b/code/apps/server/source/main.c
index eea0433..aac3fbf 100644
--- a/code/apps/server/source/main.c
+++ b/code/apps/server/source/main.c
@@ -24,6 +24,16 @@
     } \
 } while (0)
 
+static WORLD_PKT_READER(mp_pkt_reader) {
+    // TODO(zaklaus): implement this
+    return -1;
+}
+
+static WORLD_PKT_WRITER(mp_pkt_writer) {
+    // TODO(zaklaus): implement this
+    return -1;
+}
+
 zpl_global zpl_b32 is_running = true;
 
 int main(int argc, char** argv) {
@@ -67,7 +77,7 @@ int main(int argc, char** argv) {
     stdcpp_set_os_api();
 
     zpl_printf("[INFO] Generating world of size: %d x %d\n", world_size, world_size);
-    IF(world_init(seed, block_size, chunk_size, world_size));
+    IF(world_init(seed, block_size, chunk_size, world_size, mp_pkt_reader, mp_pkt_writer));
 
     /* server dashboard */
     {
diff --git a/code/apps/server/source/utils/options.c b/code/apps/server/source/utils/options.c
index abeded0..587fb9b 100644
--- a/code/apps/server/source/utils/options.c
+++ b/code/apps/server/source/utils/options.c
@@ -5,7 +5,7 @@
 #include "utils/options.h"
 
 void generate_minimap(int32_t seed, uint16_t block_size, uint16_t chunk_size, uint16_t world_size) {
-    world_init(seed, block_size, chunk_size, world_size);
+    world_init(seed, block_size, chunk_size, world_size, NULL, NULL);
 
     uint8_t const *world;
     uint32_t world_length = chunk_size * world_size;
diff --git a/code/apps/server/source/world/blocks.c b/code/apps/server/source/world/blocks.c
deleted file mode 100644
index f8d6a96..0000000
--- a/code/apps/server/source/world/blocks.c
+++ /dev/null
@@ -1,49 +0,0 @@
-#include "zpl.h"
-#include "world/blocks.h"
-
-// todo: csv parsing + utils
-
-#define BLOCKS_COUNT (sizeof(blocks)/sizeof(block))
-
-typedef struct {
-    uint8_t tex_id;
-    char *name;
-    uint32_t flags;
-    uint32_t kind;
-    uint32_t biome;
-    char symbol;
-} block;
-
-#include "blocks_list.c"
-
-uint8_t blocks_find(uint32_t biome, uint32_t kind) {
-    for (int i=0; i<BLOCKS_COUNT; i++) {
-        if (blocks[i].biome == biome && blocks[i].kind == kind)
-            return i;
-    }
-    return BLOCK_INVALID;
-}
-
-char *blocks_get_name(uint8_t id) {
-    return blocks[id].name;
-}
-
-uint8_t blocks_get_tex_id(uint8_t id) {
-    return blocks[id].tex_id;
-}
-
-char blocks_get_symbol(uint8_t id) {
-    return blocks[id].symbol;
-}
-
-uint32_t blocks_get_flags(uint8_t id) {
-    return blocks[id].flags;
-}
-
-uint32_t blocks_get_biome(uint8_t id) {
-    return blocks[id].biome;
-}
-
-uint32_t blocks_get_kind(uint8_t id) {
-    return blocks[id].kind;
-}
diff --git a/code/apps/server/source/world/blocks_list.c b/code/apps/server/source/world/blocks_list.c
deleted file mode 100644
index 1871d80..0000000
--- a/code/apps/server/source/world/blocks_list.c
+++ /dev/null
@@ -1,10 +0,0 @@
-#include "atlas_shared.h"
-#include "world/blocks.h"
-
-static block blocks[] = {
-    {.tex_id = ATLAS_XY(0, 0), .name = "base-ground", .flags = 0, .kind = BLOCK_KIND_GROUND, .biome = 0, .symbol = '.'},
-    {.tex_id = ATLAS_XY(1, 0), .name = "base-wall", .flags = BLOCK_FLAG_COLLISION, .kind = BLOCK_KIND_WALL, .biome = 0, .symbol = '#'},
-    {.tex_id = ATLAS_XY(2, 0), .name = "base-hill", .flags = BLOCK_FLAG_COLLISION, .kind = BLOCK_KIND_HILL, .biome = 0, .symbol = '^'},
-    {.tex_id = ATLAS_XY(3, 0), .name = "base-hill-snow", .flags = BLOCK_FLAG_COLLISION, .kind = BLOCK_KIND_HILL_SNOW, .biome = 0, .symbol = '*'},
-    {.tex_id = ATLAS_XY(0, 1), .name = "base-water", .flags = BLOCK_FLAG_COLLISION, .kind = BLOCK_KIND_WATER, .biome = 0, .symbol = '~'},
-};
diff --git a/code/apps/server/source/world/perlin.c b/code/apps/server/source/world/perlin.c
deleted file mode 100644
index a4fddc6..0000000
--- a/code/apps/server/source/world/perlin.c
+++ /dev/null
@@ -1,70 +0,0 @@
-#include <math.h>
-#include "world/perlin.h"
-
-// adapted from: https://gist.github.com/nowl/828013#gistcomment-2807232
-
-static const uint8_t PERLIN_PERM_TABLE[] = {
-    208,34,231,213,32,248,233,56,161,78,24,140,71,48,140,254,245,255,247,247,40,
-    185,248,251,245,28,124,204,204,76,36,1,107,28,234,163,202,224,245,128,167,204,
-    9,92,217,54,239,174,173,102,193,189,190,121,100,108,167,44,43,77,180,204,8,81,
-    70,223,11,38,24,254,210,210,177,32,81,195,243,125,8,169,112,32,97,53,195,13,
-    203,9,47,104,125,117,114,124,165,203,181,235,193,206,70,180,174,0,167,181,41,
-    164,30,116,127,198,245,146,87,224,149,206,57,4,192,210,65,210,129,240,178,105,
-    228,108,245,148,140,40,35,195,38,58,65,207,215,253,65,85,208,76,62,3,237,55,89,
-    232,50,217,64,244,157,199,121,252,90,17,212,203,149,152,140,187,234,177,73,174,
-    193,100,192,143,97,53,145,135,19,103,13,90,135,151,199,91,239,247,33,39,145,
-    101,120,99,3,186,86,99,41,237,203,111,79,220,135,158,42,30,154,120,67,87,167,
-    135,176,183,191,253,115,184,21,233,58,129,233,142,39,128,211,118,137,139,255,
-    114,20,218,113,154,27,127,246,250,1,8,198,250,209,92,222,173,21,88,102,219
-};
-
-static int32_t perlin_noise2_sample(int32_t seed, int32_t x, int32_t y) {
-    int32_t yindex = (y + seed) % 256;
-    if (yindex < 0)
-        yindex += 256;
-    int32_t xindex = (PERLIN_PERM_TABLE[yindex] + x) % 256;
-    if (xindex < 0)
-        xindex += 256;
-    return PERLIN_PERM_TABLE[xindex];
-}
-
-static double perlin_lerp(double x, double y, double t) {
-    return x + t*(y - x);
-}
-
-static double perlin_smooth_lerp(double x, double y, double t) {
-    return perlin_lerp(x, y, t * t * (3-2*t));
-}
-
-double perlin_noise2d(int32_t seed, double x, double y) {
-    int32_t x_int = floor(x);
-    int32_t y_int = floor(y);
-    double x_frac = x - x_int;
-    double y_frac = y - y_int;
-    int32_t s = perlin_noise2_sample(seed, x_int, y_int);
-    int32_t t = perlin_noise2_sample(seed, x_int+1, y_int);
-    int32_t u = perlin_noise2_sample(seed, x_int, y_int+1);
-    int32_t v = perlin_noise2_sample(seed, x_int+1, y_int+1);
-    double low = perlin_smooth_lerp(s, t, x_frac);
-    double high = perlin_smooth_lerp(u, v, x_frac);
-    double result = perlin_smooth_lerp(low, high, y_frac);
-    return result;
-}
-
-double perlin_fbm(int32_t seed, double x, double y, double freq, uint32_t octaves) {
-    double xa = x*freq;
-    double ya = y*freq;
-    double amp = 1.0;
-    double res = 0.0;
-    double div = 0.0;
-
-    for (uint32_t i=0; i<octaves; i++) {
-        div += 256.0 * amp;
-        res += perlin_noise2d(seed, xa, ya) * amp;
-        amp *= 0.5;
-        xa *= 2.0;
-        ya *= 2.0;
-    }
-
-    return res/div;
-}
diff --git a/code/apps/server/source/world/world.c b/code/apps/server/source/world/world.c
deleted file mode 100644
index 6024223..0000000
--- a/code/apps/server/source/world/world.c
+++ /dev/null
@@ -1,146 +0,0 @@
-#include "zpl.h"
-#include "librg.h"
-#include "modules/general.h"
-#include "world/world.h"
-
-typedef struct {
-    uint8_t *data;
-    uint32_t seed;
-    uint32_t size;
-    uint32_t width;
-    uint32_t height;
-    uint16_t block_size;
-    uint16_t chunk_size;
-    uint16_t world_size;
-    ecs_world_t *ecs;
-    librg_world *tracker;
-} world_data;
-
-
-static world_data world = {0};
-
-int32_t world_gen();
-
-int32_t world_write_update(librg_world *w, librg_event *e) {
-    int64_t owner_id = librg_event_owner_get(w, e);
-    int64_t entity_id = librg_event_entity_get(w, e);
-
-    return 0;
-
-    // /* prevent sending updates to users who own that entity */
-    // /* since they will be responsible on telling where that entity is supposed to be */
-    // if (librg_entity_owner_get(w, entity_id) == owner_id) {
-    //     return LIBRG_WRITE_REJECT;
-    // }
-
-    // /* read our current position */
-    // ENetPeer *peer = (ENetPeer *)librg_entity_userdata_get(w, entity_id);
-
-    // char *buffer = librg_event_buffer_get(w, e);
-    // size_t max_length = librg_event_size_get(w, e);
-
-    // /* check if we have enough space to write and valid position */
-    // if (sizeof(vec3) > max_length || !peer->data) {
-    //     return LIBRG_WRITE_REJECT;
-    // }
-
-    // /* write data and return how much we've written */
-    // memcpy(buffer, peer->data, sizeof(vec3));
-    // return sizeof(vec3);
-}
-
-int32_t world_init(int32_t seed, uint16_t block_size, uint16_t chunk_size, uint16_t world_size) {
-    if (world.data) {
-        world_destroy();
-    }
-
-    world.seed = seed;
-    world.block_size = block_size;
-    world.chunk_size = chunk_size;
-    world.world_size = world_size;
-
-    world.width = chunk_size * world_size;
-    world.height = chunk_size * world_size;
-    world.size = world.width * world.height;
-    world.data = zpl_malloc(sizeof(uint8_t)*world.size);
-
-    if (!world.data) {
-        return WORLD_ERROR_OUTOFMEM;
-    }
-
-    world.ecs = ecs_init();
-    ecs_set_entity_range(world.ecs, 0, UINT32_MAX);
-    //ecs_set_threads(world.ecs, 4);
-
-    world.tracker = librg_world_create();
-
-    if (world.tracker == NULL) {
-        zpl_printf("[ERROR] An error occurred while trying to create a server world.\n");
-        return WORLD_ERROR_TRACKER_FAILED;
-    }
-
-    zpl_printf("[INFO] Created a new server world\n");
-
-    /* config our world grid */
-    librg_config_chunksize_set(world.tracker, block_size * chunk_size, block_size * chunk_size, 1);
-    librg_config_chunkamount_set(world.tracker, world_size, world_size, 1);
-    librg_config_chunkoffset_set(world.tracker, LIBRG_OFFSET_MID, LIBRG_OFFSET_MID, LIBRG_OFFSET_MID);
-
-    ECS_IMPORT(world.ecs, General);
-
-    for (int i = 0; i < chunk_size * chunk_size; ++i) {
-        ecs_entity_t e = ecs_new(world.ecs, 0);
-        ecs_set(world.ecs, e, Chunk, {
-            .x = i % chunk_size,
-            .y = i / chunk_size,
-        });
-
-        librg_entity_track(world.tracker, e);
-        librg_entity_chunk_set(world.tracker, e, i);
-    }
-
-    // librg_event_set(world.tracker, LIBRG_WRITE_UPDATE, world_write_update);
-    // librg_event_set(world.tracker, LIBRG_READ_UPDATE, server_read_update);
-
-    return world_gen();
-}
-
-int32_t world_destroy(void) {
-    librg_world_destroy(world.tracker);
-    ecs_fini(world.ecs);
-    zpl_mfree(world.data);
-    zpl_memset(&world, 0, sizeof(world));
-    zpl_printf("[INFO] World was destroyed.\n");
-    return WORLD_ERROR_NONE;
-}
-
-int32_t world_update() {
-    ecs_progress(world.ecs, 0);
-    return 0;
-}
-
-uint32_t world_buf(uint8_t const **ptr, uint32_t *width) {
-    ZPL_ASSERT_NOT_NULL(world.data);
-    ZPL_ASSERT_NOT_NULL(ptr);
-    *ptr = world.data;
-    if (width) *width = world.width;
-    return world.size;
-}
-
-ecs_world_t * world_ecs() {
-    return world.ecs;
-}
-
-librg_world * world_tracker() {
-    return world.tracker;
-}
-
-uint16_t world_chunk_size(void) {
-    return world.chunk_size;
-}
-
-uint16_t world_chunk_amount(void) {
-    return world.world_size;
-}
-
-#include "world_gen.c"
diff --git a/code/apps/server/source/world/world_gen.c b/code/apps/server/source/world/world_gen.c
deleted file mode 100644
index d845a3d..0000000
--- a/code/apps/server/source/world/world_gen.c
+++ /dev/null
@@ -1,133 +0,0 @@
-#include "zpl.h"
-
-#include <math.h>
-#include <stdlib.h>
-
-#include "world/world.h"
-#include "world/blocks.h"
-#include "world/perlin.h"
-
-#define WORLD_BLOCK_OBSERVER(name) uint32_t name(uint32_t id, uint32_t block_idx)
-typedef WORLD_BLOCK_OBSERVER(world_block_observer_proc);
-
-#define WORLD_PERLIN_FREQ    1.0
-#define WORLD_PERLIN_OCTAVES 1
-
-static void world_fill_rect(uint32_t id, uint32_t x, uint32_t y, uint32_t w, uint32_t h, world_block_observer_proc *proc) {
-    for (uint32_t cy=y; cy<y+h; cy++) {
-        for (uint32_t cx=x; cx<x+w; cx++) {
-            if (cx < 0 || cx >= world.width) continue;
-            if (cy < 0 || cy >= world.height) continue;
-            uint32_t i = (cy*world.width) + cx;
-
-            if (proc) {
-                uint32_t new_id = (*proc)(id, i);
-                if (new_id != BLOCK_INVALID) {
-                    id = new_id;
-                }
-                else continue;
-            }
-
-            world.data[i] = id;
-        }
-    }
-}
-
-static void world_fill_circle(uint32_t id, uint32_t x, uint32_t y, uint32_t w, uint32_t h, world_block_observer_proc *proc) {
-    for (uint32_t cy=y; cy<y+h; cy++) {
-        for (uint32_t cx=x; cx<x+w; cx++) {
-            if (cx < 0 || cx >= world.width) continue;
-            if (cy < 0 || cy >= world.height) continue;
-            uint32_t i = (cy*world.width) + cx;
-
-            if (proc) {
-                uint32_t new_id = (*proc)(id, i);
-                if (new_id != BLOCK_INVALID) {
-                    id = new_id;
-                }
-                else continue;
-            }
-
-            world.data[i] = id;
-        }
-    }
-}
-
-static void world_fill_rect_anchor(uint32_t id, uint32_t x, uint32_t y, uint32_t w, uint32_t h, float ax, float ay, world_block_observer_proc *proc) {
-    uint32_t w2 = (uint32_t)floorf(w*ax);
-    uint32_t h2 = (uint32_t)floorf(h*ay);
-    world_fill_rect(id, x-w2, y-h2, w, h, proc);
-}
-
-static WORLD_BLOCK_OBSERVER(shaper) {
-    uint32_t biome = blocks_get_biome(id);
-    uint32_t kind = blocks_get_kind(id);
-    uint32_t old_biome = blocks_get_biome(world.data[block_idx]);
-    uint32_t old_kind = blocks_get_kind(world.data[block_idx]);
-
-    if (biome == old_biome) {
-        if (kind == BLOCK_KIND_WALL && kind == old_kind) {
-            return blocks_find(biome, BLOCK_KIND_HILL);
-        }
-        if (kind == BLOCK_KIND_HILL && kind == old_kind) {
-            return blocks_find(biome, BLOCK_KIND_HILL_SNOW);
-        }
-    }
-
-    return id;
-}
-
-static uint8_t world_perlin_cond(uint32_t block_idx, double chance) {
-    uint32_t x = block_idx % world.width;
-    uint32_t y = block_idx / world.width;
-
-    return perlin_fbm(world.seed, x, y, WORLD_PERLIN_FREQ, WORLD_PERLIN_OCTAVES) < chance;
-}
-
-static WORLD_BLOCK_OBSERVER(shaper_noise80) {
-    return world_perlin_cond(block_idx, 0.80) ? shaper(id, block_idx) : BLOCK_INVALID;
-}
-
-static WORLD_BLOCK_OBSERVER(shaper_noise50) {
-    return world_perlin_cond(block_idx, 0.50) ? shaper(id, block_idx) : BLOCK_INVALID;
-}
-
-static WORLD_BLOCK_OBSERVER(shaper_noise33) {
-    return world_perlin_cond(block_idx, 0.33) ? shaper(id, block_idx) : BLOCK_INVALID;
-}
-
-static void world_fill_mountain(uint32_t x, uint32_t y) {
-
-}
-
-#define RAND_RANGE(x,y) (x + (int)rand()%(y-(x)))
-
-int32_t world_gen() {
-    // TODO: perform world gen
-    // atm, we will fill the world with ground and surround it by walls
-    uint32_t wall_id = blocks_find(BLOCK_BIOME_DEV, BLOCK_KIND_WALL);
-    uint32_t grnd_id = blocks_find(BLOCK_BIOME_DEV, BLOCK_KIND_GROUND);
-    uint32_t watr_id = blocks_find(BLOCK_BIOME_DEV, BLOCK_KIND_WATER);
-
-    srand(world.seed);
-
-    // walls
-    world_fill_rect(wall_id, 0, 0, world.width, world.height, NULL);
-
-    // ground
-    world_fill_rect(grnd_id, 1, 1, world.width-2, world.height-2, NULL);
-
-    // water
-    for (int i=0; i<RAND_RANGE(0, 12); i++) {
-        world_fill_rect_anchor(watr_id, RAND_RANGE(0, world.width), RAND_RANGE(0, world.height), 4+RAND_RANGE(0,3), 4+RAND_RANGE(0,3), 0.5f, 0.5f, shaper_noise33);
-    }
-
-    const uint32_t HILLS_SIZE = 21;
-
-    // hills
-    for (int i=0; i<RAND_RANGE(8, 224); i++) {
-        world_fill_rect_anchor(wall_id, RAND_RANGE(0, world.width), RAND_RANGE(0, world.height), RAND_RANGE(0,HILLS_SIZE), RAND_RANGE(0,HILLS_SIZE), 0.5f, 0.5f, shaper_noise33);
-    }
-
-    return WORLD_ERROR_NONE;
-}
diff --git a/code/common/CMakeLists.txt b/code/common/CMakeLists.txt
index b124be6..74a2329 100644
--- a/code/common/CMakeLists.txt
+++ b/code/common/CMakeLists.txt
@@ -1,2 +1,8 @@
-file(GLOB_RECURSE SRCS *.h *.c packets/*.c)
-add_library(eco2d-common STATIC ${SRCS})
+file(GLOB SRCS *.h *.c packets/*.c packets/*.h world/*.h)
+set(SRCS ${SRCS}
+	world/blocks.c
+	world/perlin.c
+	world/world.c
+)
+include_directories(../modules . world)
+add_library(eco2d-common STATIC ${SRCS})
\ No newline at end of file
diff --git a/code/common/packets/packet.c b/code/common/packets/packet.c
index 46f9af5..7684ef2 100644
--- a/code/common/packets/packet.c
+++ b/code/common/packets/packet.c
@@ -6,14 +6,19 @@
 #define PKT_HEADER_ELEMENTS 2
 
 pkt_handler pkt_handlers[] = {
-    #ifdef SERVER
-    #else
     {.id = MSG_ID_01_WELCOME, .handler = pkt_01_welcome_handler},
-    #endif
 };
 
 uint8_t pkt_buffer[PKT_BUFSIZ];
 
+int32_t pkt_header_encode(pkt_messages id, void *data, size_t datalen) {
+    cw_pack_context pc = {0};
+    pkt_pack_msg(&pc, PKT_HEADER_ELEMENTS);
+    cw_pack_unsigned(&pc, id);
+    cw_pack_bin(&pc, data, datalen);
+    return pkt_pack_msg_size(&pc);
+}
+
 int32_t pkt_header_decode(pkt_header *table, void *data, size_t datalen) {
     cw_unpack_context uc = {0};
     pkt_unpack_msg_raw(&uc, data, datalen, PKT_HEADER_ELEMENTS);
@@ -34,7 +39,7 @@ int32_t pkt_header_decode(pkt_header *table, void *data, size_t datalen) {
     table->datalen = packed_size;
     table->ok = 1;
 
-    return pkt_validate_eof_msg(&uc);
+    return pkt_validate_eof_msg(&uc) != -1;
 }
 
 int32_t pkt_unpack_struct(cw_unpack_context *uc, pkt_desc *desc, void *raw_blob, uint32_t blob_size) {
diff --git a/code/common/packets/packet.h b/code/common/packets/packet.h
index 21d5c18..75b4e70 100644
--- a/code/common/packets/packet.h
+++ b/code/common/packets/packet.h
@@ -14,6 +14,7 @@ typedef struct pkt_header {
     uint16_t sender;
     uint8_t *data;
     uint32_t datalen;
+    int8_t is_reliable;
     int8_t ok;
 } pkt_header;
 
@@ -25,6 +26,7 @@ typedef struct {
     pkt_handler_proc *handler;
 } pkt_handler;
 
+int32_t pkt_header_encode(pkt_messages id, void *data, size_t datalen);
 int32_t pkt_header_decode(pkt_header *table, void *data, size_t datalen);
 
 extern pkt_handler pkt_handlers[];
diff --git a/code/common/packets/packet_utils.h b/code/common/packets/packet_utils.h
index b8ece1d..1b83d6c 100644
--- a/code/common/packets/packet_utils.h
+++ b/code/common/packets/packet_utils.h
@@ -3,6 +3,10 @@
 #include "packet.h"
 #include "cwpack/cwpack.h"
 
+#ifndef PKT_IF
+#define PKT_IF(c) if (c < 0) return -1;
+#endif
+
 inline void pkt_pack_msg(cw_pack_context *pc, uint32_t args) {
     cw_pack_context_init(pc, pkt_buffer, PKT_BUFSIZ, 0);
     cw_pack_array_size(pc, args);
@@ -35,6 +39,18 @@ inline size_t pkt_pack_msg_size(cw_pack_context *pc) {
     return pc->current - pc->start; // NOTE(zaklaus): length
 }
 
+inline int32_t pkt_prep_msg(pkt_header *pkt, pkt_messages id, size_t pkt_size, int8_t is_reliable) {
+    zpl_zero_item(pkt);
+    static uint8_t pkt_data[PKT_BUFSIZ] = {0};
+    zpl_memcopy(pkt_data, pkt_buffer, pkt_size);
+    
+    pkt->data = pkt_buffer;
+    pkt->datalen = pkt_header_encode(id, pkt_data, pkt_size);
+    pkt->is_reliable = is_reliable;
+    pkt->id = id;
+    return 0;
+}
+
 #ifndef PKT_OFFSETOF
 #if defined(_MSC_VER) || defined(ZPL_COMPILER_TINYC)
 #    define PKT_OFFSETOF(Type, element) ((size_t) & (((Type *)0)->element))
@@ -60,10 +76,6 @@ inline size_t pkt_pack_msg_size(cw_pack_context *pc) {
 #define PKT_END .type = CWP_NOT_AN_ITEM
 #endif
 
-#ifndef PKT_IF
-#define PKT_IF(c) if (c < 0) return -1;
-#endif
-
 typedef struct pkt_desc {
     cwpack_item_types type;
     size_t offset;
diff --git a/code/common/packets/pkt_01_welcome.c b/code/common/packets/pkt_01_welcome.c
index 5260c40..81b161d 100644
--- a/code/common/packets/pkt_01_welcome.c
+++ b/code/common/packets/pkt_01_welcome.c
@@ -1,10 +1,10 @@
 #include "pkt_01_welcome.h"
+#include "world.h"
 
 pkt_desc pkt_01_welcome_desc[] = {
+    { PKT_FIELD(CWP_ITEM_POSITIVE_INTEGER, pkt_01_welcome, block_size) },
     { PKT_FIELD(CWP_ITEM_POSITIVE_INTEGER, pkt_01_welcome, chunk_size) },
-    { PKT_FIELD(CWP_ITEM_POSITIVE_INTEGER, pkt_01_welcome, chunk_amount) },
-    { PKT_ARRAY(pkt_01_welcome, numbers) },
-    { PKT_ARRAY(pkt_01_welcome, structs) },
+    { PKT_FIELD(CWP_ITEM_POSITIVE_INTEGER, pkt_01_welcome, world_size) },
     { PKT_END },
 };
 
@@ -19,6 +19,8 @@ int32_t pkt_01_welcome_handler(pkt_header *header) {
     pkt_01_welcome table;
     PKT_IF(pkt_msg_decode(header, pkt_01_welcome_desc, 3, PKT_STRUCT_PTR(&table)));
 
-    zpl_printf("we received: chunk_size: %d and chunk_amount: %d\n", table.chunk_size, table.chunk_amount);
+    zpl_printf("we received: block_size: %d, chunk_size: %d and world_size: %d\n", table.block_size, table.chunk_size, table.world_size);
+    
+    world_init_minimal(table.block_size, table.chunk_size, table.world_size, NULL, NULL);
     return 0;
 }
diff --git a/code/common/packets/pkt_01_welcome.h b/code/common/packets/pkt_01_welcome.h
index 7bc21db..c138c3c 100644
--- a/code/common/packets/pkt_01_welcome.h
+++ b/code/common/packets/pkt_01_welcome.h
@@ -4,10 +4,9 @@
 #define PKT_01_NUMBERS_SIZ 32
 
 typedef struct {
-    uint32_t chunk_size;
-    uint32_t chunk_amount;
-    uint16_t numbers[PKT_01_NUMBERS_SIZ];
-    pkt_header structs[64];
+    uint16_t block_size;
+    uint16_t chunk_size;
+    uint16_t world_size;
 } pkt_01_welcome;
 
 size_t pkt_01_welcome_encode(pkt_01_welcome *table);