diff --git a/example_config/idz.yaml b/example_config/idz.yaml
new file mode 100644
index 0000000..1bfff9b
--- /dev/null
+++ b/example_config/idz.yaml
@@ -0,0 +1,11 @@
+server:
+  enable: True
+  loglevel: "info"
+  hostname: ""
+  news: ""
+  aes_key: ""
+
+ports:
+  userdb: 10000
+  match: 10010
+  echo: 10020
diff --git a/titles/idz/__init__.py b/titles/idz/__init__.py
new file mode 100644
index 0000000..958d08a
--- /dev/null
+++ b/titles/idz/__init__.py
@@ -0,0 +1,8 @@
+from titles.idz.index import IDZServlet
+from titles.idz.const import IDZConstants
+from titles.idz.database import IDZData
+
+index = IDZServlet
+database = IDZData
+game_codes = [IDZConstants.GAME_CODE]
+current_schema_version = 1
diff --git a/titles/idz/config.py b/titles/idz/config.py
new file mode 100644
index 0000000..2ff4e5c
--- /dev/null
+++ b/titles/idz/config.py
@@ -0,0 +1,67 @@
+from typing import List, Dict
+
+from core.config import CoreConfig
+
+
+class IDZServerConfig:
+    def __init__(self, parent_config: "IDZConfig") -> None:
+        self.__config = parent_config
+
+    @property
+    def enable(self) -> bool:
+        return CoreConfig.get_config_field(
+            self.__config, "idz", "server", "enable", default=True
+        )
+
+    @property
+    def loglevel(self) -> int:
+        return CoreConfig.str_to_loglevel(
+            CoreConfig.get_config_field(
+                self.__config, "idz", "server", "loglevel", default="info"
+            )
+        )
+
+    @property
+    def hostname(self) -> str:
+        return CoreConfig.get_config_field(
+            self.__config, "idz", "server", "hostname", default=""
+        )
+
+    @property
+    def news(self) -> str:
+        return CoreConfig.get_config_field(
+            self.__config, "idz", "server", "news", default=""
+        )
+
+    @property
+    def aes_key(self) -> str:
+        return CoreConfig.get_config_field(
+            self.__config, "idz", "server", "aes_key", default=""
+        )
+
+
+class IDZPortsConfig:
+    def __init__(self, parent_config: "IDZConfig") -> None:
+        self.__config = parent_config
+
+    @property
+    def userdb(self) -> int:
+        return CoreConfig.get_config_field(self.__config, "idz", "ports", "userdb", default=10000)
+
+    @property
+    def match(self) -> int:
+        return CoreConfig.get_config_field(self.__config, "idz", "ports", "match", default=10010)
+
+    @property
+    def echo(self) -> int:
+        return CoreConfig.get_config_field(self.__config, "idz", "ports", "echo", default=10020)
+
+
+class IDZConfig(dict):
+    def __init__(self) -> None:
+        self.server = IDZServerConfig(self)
+        self.ports = IDZPortsConfig(self)
+
+    @property
+    def rsa_keys(self) -> List[Dict]:
+        return CoreConfig.get_config_field(self, "idz", "rsa_keys", default=[])
\ No newline at end of file
diff --git a/titles/idz/const.py b/titles/idz/const.py
new file mode 100644
index 0000000..164c940
--- /dev/null
+++ b/titles/idz/const.py
@@ -0,0 +1,40 @@
+from enum import Enum
+
+class IDZConstants:
+    GAME_CODE = "SDDF"
+
+    CONFIG_NAME = "idz.yaml"
+
+    VER_IDZ_110 = 0
+    VER_IDZ_130 = 1
+    VER_IDZ_210 = 2
+    VER_IDZ_230 = 3
+    NUM_VERS = 4
+
+    VERSION_NAMES = (
+        "Initial D Arcade Stage Zero v1.10",
+        "Initial D Arcade Stage Zero v1.30",
+        "Initial D Arcade Stage Zero v2.10",
+        "Initial D Arcade Stage Zero v2.30",
+    )
+
+    class PROFILE_STATUS(Enum):
+        LOCKED = 0
+        UNLOCKED = 1
+        OLD = 2
+    
+    HASH_LUT = [
+        # No clue
+        0x9C82E674, 0x5A4738D9, 0x8B8D7AE0, 0x29EC9D81,
+        # These three are from AES TE0
+        0x1209091B, 0x1D83839E, 0x582C2C74, 0x341A1A2E,
+        0x361B1B2D, 0xDC6E6EB2, 0xB45A5AEE, 0x5BA0A0FB,
+        0xA45252F6, 0x763B3B4D, 0xB7D6D661, 0x7DB3B3CE,
+    ]
+    HASH_NUM = 0
+    HASH_MUL = [5, 7, 11, 12][HASH_NUM]
+    HASH_XOR = [0xB3, 0x8C, 0x14, 0x50][HASH_NUM]
+
+    @classmethod
+    def game_ver_to_string(cls, ver: int):
+        return cls.VERSION_NAMES[ver]
diff --git a/titles/idz/database.py b/titles/idz/database.py
new file mode 100644
index 0000000..1f5a8e2
--- /dev/null
+++ b/titles/idz/database.py
@@ -0,0 +1,6 @@
+from core.data import Data
+from core.config import CoreConfig
+
+class IDZData(Data):
+    def __init__(self, cfg: CoreConfig) -> None:
+        super().__init__(cfg)
diff --git a/titles/idz/echo.py b/titles/idz/echo.py
new file mode 100644
index 0000000..4414b70
--- /dev/null
+++ b/titles/idz/echo.py
@@ -0,0 +1,16 @@
+from twisted.internet.protocol import DatagramProtocol
+import logging
+
+from core.config import CoreConfig
+from .config import IDZConfig
+
+class IDZEcho(DatagramProtocol):
+    def __init__(self, cfg: CoreConfig, game_cfg: IDZConfig) -> None:
+        super().__init__()
+        self.core_config = cfg
+        self.game_config = game_cfg
+        self.logger = logging.getLogger("idz")
+
+    def datagramReceived(self, data, addr):
+        self.logger.debug(f"Echo from from {addr[0]}:{addr[1]} -> {self.transport.getHost().port} - {data.hex()}")
+        self.transport.write(data, addr)
\ No newline at end of file
diff --git a/titles/idz/handlers/__init__.py b/titles/idz/handlers/__init__.py
new file mode 100644
index 0000000..a3cc248
--- /dev/null
+++ b/titles/idz/handlers/__init__.py
@@ -0,0 +1,39 @@
+from .base import IDZHandlerBase
+
+from .load_server_info import IDZHandlerLoadServerInfo
+
+from .load_ghost import IDZHandlerLoadGhost
+
+from .load_config import IDZHandlerLoadConfigA, IDZHandlerLoadConfigB
+
+from .load_top_ten import IDZHandlerLoadTopTen
+
+from .update_story_clear_num import IDZHandlerUpdateStoryClearNum
+
+from .save_expedition import IDZHandlerSaveExpedition
+
+from .load_2on2 import IDZHandlerLoad2on2A, IDZHandlerLoad2on2B
+
+from .load_team_ranking import IDZHandlerLoadTeamRankingA, IDZHandlerLoadTeamRankingB
+
+from .discover_profile import IDZHandlerDiscoverProfile
+
+from .lock_profile import IDZHandlerLockProfile
+
+from .check_team_names import IDZHandlerCheckTeamName
+
+from .unknown import IDZHandlerUnknown
+
+from .create_profile import IDZHandlerCreateProfile
+
+from .create_auto_team import IDZHandlerCreateAutoTeam
+
+from .load_profile import IDZHandlerLoadProfile
+
+from .save_profile import IDZHandlerSaveProfile
+
+from .update_provisional_store_rank import IDZHandlerUpdateProvisionalStoreRank
+
+from .load_reward_table import IDZHandlerLoadRewardTable
+
+from .save_topic import IDZHandlerSaveTopic
diff --git a/titles/idz/handlers/base.py b/titles/idz/handlers/base.py
new file mode 100644
index 0000000..720f097
--- /dev/null
+++ b/titles/idz/handlers/base.py
@@ -0,0 +1,25 @@
+import logging
+import struct
+from core.data import Data
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerBase():
+    name = "generic"
+    cmd_codes = [0x0000] * IDZConstants.NUM_VERS
+    rsp_codes = [0x0001] * IDZConstants.NUM_VERS
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        self.core_config = core_cfg
+        self.game_cfg = game_cfg
+        self.data = Data(core_cfg)
+        self.logger = logging.getLogger("idz")
+        self.game = IDZConstants.GAME_CODE
+        self.version = version
+        self.size = 0x30
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = bytearray([0] * self.size)
+        struct.pack_into("<H", ret, 0x0, self.rsp_codes[self.version])
+        return ret
\ No newline at end of file
diff --git a/titles/idz/handlers/check_team_names.py b/titles/idz/handlers/check_team_names.py
new file mode 100644
index 0000000..d09e175
--- /dev/null
+++ b/titles/idz/handlers/check_team_names.py
@@ -0,0 +1,19 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerCheckTeamName(IDZHandlerBase):
+    cmd_codes = [0x00a2, 0x00a2, 0x0097, 0x0097]
+    rsp_codes = [0x00a3, 0x00a3, 0x0098, 0x0098]
+    name = "check_team_name"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0010
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        struct.pack_into("<I", ret, 0x4, 0x1)
+        return data
diff --git a/titles/idz/handlers/create_auto_team.py b/titles/idz/handlers/create_auto_team.py
new file mode 100644
index 0000000..eb87d93
--- /dev/null
+++ b/titles/idz/handlers/create_auto_team.py
@@ -0,0 +1,49 @@
+from operator import indexOf
+import struct
+import json
+from random import choice, randrange
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+AUTO_TEAM_NAMES = ["スピードスターズ", "レッドサンズ", "ナイトキッズ"]
+FULL_WIDTH_NUMS = ["\uff10", "\uff11", "\uff12", "\uff13", "\uff14", "\uff15", "\uff16", "\uff17", "\uff18", "\uff19"]
+
+class IDZHandlerCreateAutoTeam(IDZHandlerBase):
+    cmd_codes = [0x007b, 0x007b, 0x0077, 0x0077]
+    rsp_codes = [0x007c, 0x007c, 0x0078, 0x0078]
+    name = "create_auto_team"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0ca0
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        aime_id = struct.unpack_from("<I", data, 0x04)[0]
+        name = choice(AUTO_TEAM_NAMES)
+        bg = indexOf(AUTO_TEAM_NAMES, name)
+        number = choice(FULL_WIDTH_NUMS) + choice(FULL_WIDTH_NUMS) + choice(FULL_WIDTH_NUMS)
+
+        tdata = {
+            "id": aime_id,
+            "bg": bg,
+            "fx": 0,
+        }
+        
+        tdata = {
+            "id": aime_id,
+            "name": (name + number),
+            "bg": bg,
+            "fx": 0,
+        }
+        tname = tdata['name'].encode("shift-jis")
+
+        struct.pack_into("<I", ret, 0x0C, tdata["id"])
+        struct.pack_into(f"{len(tname)}s", ret, 0x24, tname)
+        struct.pack_into("<I", ret, 0x80, tdata["id"])
+        struct.pack_into(f"<I", ret, 0xD8, tdata["bg"])
+        struct.pack_into(f"<I", ret, 0xDC, tdata["fx"])
+
+        return ret
diff --git a/titles/idz/handlers/create_profile.py b/titles/idz/handlers/create_profile.py
new file mode 100644
index 0000000..8645003
--- /dev/null
+++ b/titles/idz/handlers/create_profile.py
@@ -0,0 +1,91 @@
+import json
+import struct
+from datetime import datetime
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerCreateProfile(IDZHandlerBase):
+    cmd_codes = [0x0066, 0x0066, 0x0064, 0x0064]
+    rsp_codes = [0x0067, 0x0065, 0x0065, 0x0065]
+    name = "create_profile"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0020
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+
+        aime_id = struct.unpack_from("<L", data, 0x04)[0]
+        name = data[0x1E:0x0034].decode("shift-jis").replace("\x00", "")
+        car = data[0x40:0xa0].hex()
+        chara = data[0xa8:0xbc].hex()
+
+        self.logger.info(f"Create profile for {name} (aime id {aime_id})")
+
+        auto_team = None
+        if not auto_team:
+            team = {
+                "bg": 0,
+                "id": 0,
+                "shop": ""
+            }
+        else:
+            tdata = json.loads(auto_team["data"])
+            
+            team = {
+                "bg": tdata["bg"],
+                "id": tdata["fx"],
+                "shop": ""
+            }
+
+        profile_data={
+            "profile": {
+                "xp": 0,
+                "lv": 1,
+                "fame": 0,
+                "dpoint": 0,
+                "milage": 0,
+                "playstamps": 0,
+                "last_login": int(datetime.now().timestamp()),
+                "car_str": car, # These should probably be chaged to dicts
+                "chara_str": chara, # But this works for now...
+            },
+
+            "options": {
+                "music": 0,
+                "pack": 13640,
+                "aura": 0,
+                "paper_cup": 0,
+                "gauges": 5,
+                "driving_style": 0
+            },
+
+            "missions": {
+                "team": [],
+                "solo": []
+            },
+
+            "story": {
+                "x": 0,
+                "y": 0,
+                "rows": {}
+            },
+
+            "unlocks": {
+                "auras": 1,
+                "cup": 0,
+                "gauges": 32,
+                "music": 0,
+                "last_mileage_reward": 0,
+            },
+            "team": team
+        }
+        
+        if self.version > 2:
+            struct.pack_into("<L", ret, 0x04, aime_id)
+        else:
+            struct.pack_into("<L", ret, 0x08, aime_id)
+        return ret
diff --git a/titles/idz/handlers/create_team.py b/titles/idz/handlers/create_team.py
new file mode 100644
index 0000000..e69de29
diff --git a/titles/idz/handlers/discover_profile.py b/titles/idz/handlers/discover_profile.py
new file mode 100644
index 0000000..31eb098
--- /dev/null
+++ b/titles/idz/handlers/discover_profile.py
@@ -0,0 +1,23 @@
+import struct
+from typing import Tuple, List, Dict
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerDiscoverProfile(IDZHandlerBase):
+    cmd_codes = [0x006b, 0x0067]
+    rsp_codes = [0x006c, 0x0068, 0x0068,0x0068]
+    name = "discover_profile"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0010
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        user_id = struct.unpack_from("<I", data, 0x04)[0]
+        profile = None
+
+        struct.pack_into("<H", ret, 0x04, int(profile is not None))
+        return ret
diff --git a/titles/idz/handlers/load_2on2.py b/titles/idz/handlers/load_2on2.py
new file mode 100644
index 0000000..54794dd
--- /dev/null
+++ b/titles/idz/handlers/load_2on2.py
@@ -0,0 +1,36 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerLoad2on2A(IDZHandlerBase):
+    cmd_codes = [0x00b0, 0x00b0, 0x00a3, 0x00a3]
+    rsp_codes = [0x00b1, 0x00b1, 0x00a4, 0x00a4]
+    name = "load_2on2A"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x04c0
+
+        if version >= IDZConstants.VER_IDZ_210:
+            self.size = 0x1290
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
+
+class IDZHandlerLoad2on2B(IDZHandlerBase):
+    cmd_codes = [0x0132] * 4
+    rsp_codes = [0x0133] * 4
+    name = "load_2on2B"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x04c0
+
+        if version >= IDZConstants.VER_IDZ_210:
+            self.size = 0x0540
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/handlers/load_config.py b/titles/idz/handlers/load_config.py
new file mode 100644
index 0000000..fa103af
--- /dev/null
+++ b/titles/idz/handlers/load_config.py
@@ -0,0 +1,41 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerLoadConfigA(IDZHandlerBase):
+    cmd_codes = [0x0004] * IDZConstants.NUM_VERS
+    rsp_codes = [0x0005] * IDZConstants.NUM_VERS
+    name = "load_config_a"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x01a0
+        
+        if self.version > 1:
+            self.size = 0x05e0
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        struct.pack_into("<H", ret, 0x02, 1)
+        struct.pack_into("<I", ret, 0x16, 230)
+        return ret
+
+class IDZHandlerLoadConfigB(IDZHandlerBase):
+    cmd_codes = [0x00a0] * IDZConstants.NUM_VERS
+    rsp_codes = [0x00ac, 0x00ac, 0x00a1, 0x00a1]
+    name = "load_config_b"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0230
+        
+        if self.version > 1:
+            self.size = 0x0240
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        struct.pack_into("<H", ret, 0x02, 1)
+        return ret
diff --git a/titles/idz/handlers/load_ghost.py b/titles/idz/handlers/load_ghost.py
new file mode 100644
index 0000000..57adf6e
--- /dev/null
+++ b/titles/idz/handlers/load_ghost.py
@@ -0,0 +1,39 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerLoadGhost(IDZHandlerBase):
+    cmd_codes = [0x00a0, 0x00a0, 0x0095, 0x0095]
+    rsp_codes = [0x00a1, 0x00a1, 0x0096, 0x0096]
+    name = "load_ghost"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0070
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        struct.pack_into("<I", ret, 0x02, 0x5)
+
+        struct.pack_into("<L", ret, 0x04, 0x0)
+        struct.pack_into("<l", ret, 0x08, -1)
+        struct.pack_into("<L", ret, 0x0C, 0x1D4C0)
+        struct.pack_into("<L", ret, 0x10, 0x1D4C0)
+        struct.pack_into("<L", ret, 0x14, 0x1D4C0)
+
+        struct.pack_into("<L", ret, 0x38, 0x0)
+        struct.pack_into("<l", ret, 0x3C, -1)
+        struct.pack_into("<L", ret, 0x40, 0x1D4C0)
+        struct.pack_into("<L", ret, 0x44, 0x1D4C0)
+        struct.pack_into("<L", ret, 0x48, 0x1D4C0)
+
+        struct.pack_into("<L", ret, 0x4C, 0x1D4C0)
+        struct.pack_into("<i", ret, 0x50, -1)
+        struct.pack_into("<H", ret, 0x52, 0)
+        struct.pack_into("<H", ret, 0x53, 0)
+        struct.pack_into("<H", ret, 0x54, 0)
+        struct.pack_into("<H", ret, 0x55, 0)
+        struct.pack_into("<H", ret, 0x58, 0)
+        return ret
diff --git a/titles/idz/handlers/load_profile.py b/titles/idz/handlers/load_profile.py
new file mode 100644
index 0000000..3e519a5
--- /dev/null
+++ b/titles/idz/handlers/load_profile.py
@@ -0,0 +1,28 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerLoadProfile(IDZHandlerBase):
+    cmd_codes = [0x0067, 0x012f, 0x012f, 0x0142]
+    rsp_codes = [0x0065, 0x012e, 0x012e, 0x0141]
+    name = "load_profile"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+
+        if self.version == IDZConstants.VER_IDZ_110:
+            self.size = 0x0d30
+        elif self.version == IDZConstants.VER_IDZ_130:
+            self.size = 0x0ea0
+        elif self.version == IDZConstants.VER_IDZ_210:
+            self.size = 0x1360
+        elif self.version == IDZConstants.VER_IDZ_230:
+            self.size = 0x1640
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        aime_id = struct.unpack_from("<L", data, 0x04)[0]
+        return ret
diff --git a/titles/idz/handlers/load_reward_table.py b/titles/idz/handlers/load_reward_table.py
new file mode 100644
index 0000000..16d987f
--- /dev/null
+++ b/titles/idz/handlers/load_reward_table.py
@@ -0,0 +1,17 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerLoadRewardTable(IDZHandlerBase):
+    cmd_codes = [0x0086, 0x0086, 0x007F, 0x007F]
+    rsp_codes = [0x0087, 0x0087, 0x0080, 0x0080]
+    name = "load_reward_table"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x01c0
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/handlers/load_server_info.py b/titles/idz/handlers/load_server_info.py
new file mode 100644
index 0000000..3b60f00
--- /dev/null
+++ b/titles/idz/handlers/load_server_info.py
@@ -0,0 +1,60 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerLoadServerInfo(IDZHandlerBase):
+    cmd_codes = [0x0006] * IDZConstants.NUM_VERS
+    rsp_codes = [0x0007] * IDZConstants.NUM_VERS
+    name = "load_server_info1"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x04b0
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        offset = 0
+        if self.version >=  IDZConstants.VER_IDZ_210:
+            offset = 2
+        
+        news_str = f"http://{self.core_config.title.hostname}:{self.core_config.title.port}/SDDF/230/news/news80**.txt"
+        err_str = f"http://{self.core_config.title.hostname}:{self.core_config.title.port}/SDDF/230/error"
+
+        len_hostname = len(self.core_config.title.hostname)
+        len_news = len(news_str)
+        len_error = len(err_str)
+
+        struct.pack_into("<I", ret, 0x2 + offset, 1) # Status
+        struct.pack_into(f"{len_hostname}s", ret, 0x4 + offset, self.core_config.title.hostname.encode())
+        struct.pack_into("<I", ret, 0x84 + offset, self.game_cfg.ports.userdb)
+        struct.pack_into("<I", ret, 0x86 + offset, self.game_cfg.ports.userdb + 1)
+
+        struct.pack_into(f"{len_hostname}s", ret, 0x88 + offset, self.core_config.title.hostname.encode())
+        struct.pack_into("<I", ret, 0x108 + offset, self.game_cfg.ports.match - 1)
+        struct.pack_into("<I", ret, 0x10a + offset, self.game_cfg.ports.match - 3)
+        struct.pack_into("<I", ret, 0x10c + offset, self.game_cfg.ports.match - 2)
+
+        struct.pack_into("<I", ret, 0x10e + offset, self.game_cfg.ports.match + 2)
+        struct.pack_into("<I", ret, 0x110 + offset, self.game_cfg.ports.match + 3)
+        struct.pack_into("<I", ret, 0x112 + offset, self.game_cfg.ports.match + 1)
+
+        struct.pack_into(f"{len_hostname}s", ret, 0x114 + offset, self.core_config.title.hostname.encode())
+        struct.pack_into("<I", ret, 0x194 + offset, self.game_cfg.ports.echo + 2)
+
+        struct.pack_into(f"{len_hostname}s", ret, 0x0199 + offset, self.core_config.title.hostname.encode())
+        struct.pack_into("<I", ret, 0x0219 + offset, self.game_cfg.ports.echo + 3)
+
+        struct.pack_into(f"{len_hostname}s", ret, 0x021c + offset, self.core_config.title.hostname.encode())
+        struct.pack_into(f"{len_hostname}s", ret, 0x029c + offset, self.core_config.title.hostname.encode())
+        struct.pack_into(f"{len_hostname}s", ret, 0x031c + offset, self.core_config.title.hostname.encode())
+
+        struct.pack_into("<I", ret, 0x39c + offset, self.game_cfg.ports.echo)
+        struct.pack_into("<I", ret, 0x39e + offset, self.game_cfg.ports.echo + 1)
+
+        struct.pack_into(f"{len_news}s", ret, 0x03a0 + offset, news_str.encode())
+        struct.pack_into(f"{len_error}s", ret, 0x0424 + offset, err_str.encode())
+
+        return ret
diff --git a/titles/idz/handlers/load_team_ranking.py b/titles/idz/handlers/load_team_ranking.py
new file mode 100644
index 0000000..22a2c4b
--- /dev/null
+++ b/titles/idz/handlers/load_team_ranking.py
@@ -0,0 +1,29 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerLoadTeamRankingA(IDZHandlerBase):
+    cmd_codes = [0x00b9, 0x00b9, 0x00a7, 0x00a7]
+    rsp_codes = [0x00b1] * 4
+    name = "load_team_ranking_a"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0ba0
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
+
+class IDZHandlerLoadTeamRankingB(IDZHandlerBase):
+    cmd_codes = [0x00bb, 0x00bb, 0x00a9, 0x00a9]
+    rsp_codes = [0x00a8] * 4
+    name = "load_team_ranking_b"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0ba0
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/handlers/load_top_ten.py b/titles/idz/handlers/load_top_ten.py
new file mode 100644
index 0000000..ef2a158
--- /dev/null
+++ b/titles/idz/handlers/load_top_ten.py
@@ -0,0 +1,30 @@
+import struct
+from typing import Tuple, List, Dict
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerLoadTopTen(IDZHandlerBase):
+    cmd_codes = [0x012c] * 4
+    rsp_codes = [0x00ce] * 4
+    name = "load_top_ten"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x1720
+
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        tracks_dates: List[Tuple[int, int]] = []
+        for i in range(32):
+            tracks_dates.append(
+                (struct.unpack_from("<H", data, 0x04 + (2 * i))[0], "little", 
+                struct.unpack_from("<I", data, 0x44 + (4 * i))[0], "little")
+            )
+        # TODO: Best scores
+        for i in range (3):
+            offset = 0x16c0 + 0x1c * i
+            struct.pack_into("<B", ret, offset + 0x02, 0xff)
+
+        return ret
diff --git a/titles/idz/handlers/lock_profile.py b/titles/idz/handlers/lock_profile.py
new file mode 100644
index 0000000..f6d47a2
--- /dev/null
+++ b/titles/idz/handlers/lock_profile.py
@@ -0,0 +1,39 @@
+import struct
+from typing import Dict
+from datetime import datetime, timedelta
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerLockProfile(IDZHandlerBase):
+    cmd_codes = [0x0069, 0x0069, 0x0065, 0x0065]
+    rsp_codes = [0x006a, 0x006a, 0x0066, 0x0066]
+    name = "lock_profile"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x0020
+    
+    def handle(self, data: bytes) -> bytearray:
+        ret = super().handle(data)
+        profile_data = {
+            "status": IDZConstants.PROFILE_STATUS.UNLOCKED.value, 
+            "expire_time": int((datetime.now() + timedelta(hours=1)).timestamp() / 1000)
+        }
+        user_id = struct.unpack_from("<I", data, 0x04)[0]
+        profile = None
+
+        if profile is None and self.version > 0:
+            old_profile = None
+            if old_profile is not None:
+                profile_data["status"] = IDZConstants.PROFILE_STATUS.OLD.value
+        
+        return self.handle_common(profile_data, ret)
+    
+    def handle_common(cls, data: Dict, ret: bytearray) -> bytearray:
+        struct.pack_into("<B", ret, 0x18, data["status"])
+        struct.pack_into("<h", ret, 0x1a, -1)
+        struct.pack_into("<I", ret, 0x1c, data["expire_time"])
+        return ret
diff --git a/titles/idz/handlers/save_expedition.py b/titles/idz/handlers/save_expedition.py
new file mode 100644
index 0000000..4bab18d
--- /dev/null
+++ b/titles/idz/handlers/save_expedition.py
@@ -0,0 +1,14 @@
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerSaveExpedition(IDZHandlerBase):
+    cmd_codes = [0x008c, 0x013f]
+    name = "save_expedition"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/handlers/save_profile.py b/titles/idz/handlers/save_profile.py
new file mode 100644
index 0000000..652dbd6
--- /dev/null
+++ b/titles/idz/handlers/save_profile.py
@@ -0,0 +1,15 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerSaveProfile(IDZHandlerBase):
+    cmd_codes = [0x0068, 0x0138, 0x0138, 0x0143]
+    name = "save_profile"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/handlers/save_topic.py b/titles/idz/handlers/save_topic.py
new file mode 100644
index 0000000..9499385
--- /dev/null
+++ b/titles/idz/handlers/save_topic.py
@@ -0,0 +1,17 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerSaveTopic(IDZHandlerBase):
+    cmd_codes = [0x009A, 0x009A, 0x0091, 0x0091]
+    rsp_codes = [0x009B, 0x009B, 0x0092, 0x0092]
+    name = "save_topic"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x05d0
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/handlers/unknown.py b/titles/idz/handlers/unknown.py
new file mode 100644
index 0000000..ee3046a
--- /dev/null
+++ b/titles/idz/handlers/unknown.py
@@ -0,0 +1,12 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerUnknown(IDZHandlerBase):
+    cmd_codes = [0x00ad, 0x00ad, 0x00a2, 0x00a2]
+    name = "unknown"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
diff --git a/titles/idz/handlers/update_provisional_store_rank.py b/titles/idz/handlers/update_provisional_store_rank.py
new file mode 100644
index 0000000..cbe344d
--- /dev/null
+++ b/titles/idz/handlers/update_provisional_store_rank.py
@@ -0,0 +1,20 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+
+class IDZHandlerUpdateProvisionalStoreRank(IDZHandlerBase):
+    cmd_codes = [0x0082, 0x0082, 0x007C, 0x007C]
+    rsp_codes = [0x0083, 0x0083, 0x007D, 0x007D]
+    name = "update_provisional_store_ranking"
+
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+        self.size = 0x02b0
+    
+    def handle(self, data: bytes) -> bytearray:
+        return  super().handle(data)
+    
+    def handle_common(cls, aime_id: int, ret: bytearray) -> bytearray:
+        pass
diff --git a/titles/idz/handlers/update_story_clear_num.py b/titles/idz/handlers/update_story_clear_num.py
new file mode 100644
index 0000000..46f2689
--- /dev/null
+++ b/titles/idz/handlers/update_story_clear_num.py
@@ -0,0 +1,26 @@
+import struct
+
+from .base import IDZHandlerBase
+from core.config import CoreConfig
+from ..config import IDZConfig
+from ..const import IDZConstants
+
+class IDZHandlerUpdateStoryClearNum(IDZHandlerBase):
+    cmd_codes = [0x007f, 0x097f, 0x013d, 0x0144]
+    rsp_codes = [0x0080, 0x013e, 0x013e, 0x0145]
+    name = "update_story_clear_num"
+    
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, version: int) -> None:
+        super().__init__(core_cfg, game_cfg, version)
+
+        if self.version == IDZConstants.VER_IDZ_110:
+            self.size = 0x0220
+        elif self.version == IDZConstants.VER_IDZ_130:
+            self.size = 0x04f0
+        elif self.version == IDZConstants.VER_IDZ_210:
+            self.size = 0x0510
+        elif self.version == IDZConstants.VER_IDZ_230:
+            self.size = 0x0800
+    
+    def handle(self, data: bytes) -> bytearray:
+        return super().handle(data)
diff --git a/titles/idz/index.py b/titles/idz/index.py
new file mode 100644
index 0000000..5b60e5a
--- /dev/null
+++ b/titles/idz/index.py
@@ -0,0 +1,146 @@
+from twisted.web.http import Request
+import yaml
+import logging
+import coloredlogs
+from logging.handlers import TimedRotatingFileHandler
+from os import path
+from typing import Tuple, List
+from twisted.internet import reactor, endpoints
+from twisted.web import server, resource
+import importlib
+
+from core.config import CoreConfig
+from .config import IDZConfig
+from .const import IDZConstants
+from .userdb import IDZUserDBFactory, IDZUserDBWeb, IDZKey
+from .echo import IDZEcho
+from .handlers import IDZHandlerLoadConfigB
+
+class IDZServlet:
+    def __init__(self, core_cfg: CoreConfig, cfg_dir: str) -> None:
+        self.core_cfg = core_cfg
+        self.game_cfg = IDZConfig()
+        if path.exists(f"{cfg_dir}/{IDZConstants.CONFIG_NAME}"):
+            self.game_cfg.update(
+                yaml.safe_load(open(f"{cfg_dir}/{IDZConstants.CONFIG_NAME}"))
+            )
+
+        self.logger = logging.getLogger("idz")
+        if not hasattr(self.logger, "inited"):
+            log_fmt_str = "[%(asctime)s] IDZ | %(levelname)s | %(message)s"
+            log_fmt = logging.Formatter(log_fmt_str)
+            fileHandler = TimedRotatingFileHandler(
+                "{0}/{1}.log".format(self.core_cfg.server.log_dir, "idz"),
+                encoding="utf8",
+                when="d",
+                backupCount=10,
+            )
+
+            self.rsa_keys: List[IDZKey] = []
+
+            fileHandler.setFormatter(log_fmt)
+
+            consoleHandler = logging.StreamHandler()
+            consoleHandler.setFormatter(log_fmt)
+
+            self.logger.addHandler(fileHandler)
+            self.logger.addHandler(consoleHandler)
+
+            self.logger.setLevel(self.game_cfg.server.loglevel)
+            coloredlogs.install(
+                level=self.game_cfg.server.loglevel, logger=self.logger, fmt=log_fmt_str
+            )
+            self.logger.inited = True
+    
+    @classmethod
+    def rsaHashKeyN(cls, data):
+        hash_ = 0
+        for i in data:
+            hash_ = hash_ * IDZConstants.HASH_MUL + (i ^ IDZConstants.HASH_XOR) ^ IDZConstants.HASH_LUT[i & 0xf]
+            hash_ &= 0xffffffff
+        return hash_
+
+    @classmethod
+    def get_allnet_info(
+        cls, game_code: str, core_cfg: CoreConfig, cfg_dir: str
+    ) -> Tuple[bool, str, str]:
+        game_cfg = IDZConfig()
+        if path.exists(f"{cfg_dir}/{IDZConstants.CONFIG_NAME}"):
+            game_cfg.update(
+                yaml.safe_load(open(f"{cfg_dir}/{IDZConstants.CONFIG_NAME}"))
+            )
+
+        if not game_cfg.server.enable:
+            return (False, "", "")
+
+        if len(game_cfg.rsa_keys) <= 0 or not game_cfg.server.aes_key:
+            logging.getLogger("idz").error("IDZ: No RSA/AES  keys! IDZ cannot start")
+            return (False, "", "")
+
+        hostname = core_cfg.title.hostname if not game_cfg.server.hostname else game_cfg.server.hostname
+        return (
+            True,
+            f"",
+            f"{hostname}:{game_cfg.ports.userdb}",
+        )
+
+    def setup(self):        
+        for key in self.game_cfg.rsa_keys:
+            if "N" not in key or "d" not in key or "e" not in key:
+                self.logger.error(f"Invalid IDZ key {key}")
+                continue
+
+            hashN = self.rsaHashKeyN(str(key["N"]).encode())
+            self.rsa_keys.append(IDZKey(key["N"], key["d"], key["e"], hashN))
+        
+        if len(self.rsa_keys) <= 0:
+            self.logger.error("No valid RSA keys provided! IDZ cannot start!")
+            return
+
+        handler_map = [{} for _ in range(IDZConstants.NUM_VERS)]
+        handler_mod = mod = importlib.import_module(f"titles.idz.handlers")
+        
+        for cls_name in dir(handler_mod):
+            if cls_name.startswith("__"):
+                continue
+
+            try:
+                mod = getattr(handler_mod, cls_name)
+                mod_cmds: List = getattr(mod, "cmd_codes")
+                while len(mod_cmds) < IDZConstants.NUM_VERS:
+                    mod_cmds.append(None)
+                
+                for i in range(len(mod_cmds)):
+                    if mod_cmds[i] is None:
+                        mod_cmds[i] = mod_cmds[i - 1]
+
+                    handler_map[i][mod_cmds[i]] = mod
+
+            except AttributeError as e:
+                continue
+
+        endpoints.serverFromString(reactor, f"tcp:{self.game_cfg.ports.userdb}:interface={self.core_cfg.server.listen_address}")\
+            .listen(IDZUserDBFactory(self.core_cfg, self.game_cfg, self.rsa_keys, handler_map))
+        
+        reactor.listenUDP(self.game_cfg.ports.echo, IDZEcho(self.core_cfg, self.game_cfg))
+        reactor.listenUDP(self.game_cfg.ports.echo + 1, IDZEcho(self.core_cfg, self.game_cfg))
+        reactor.listenUDP(self.game_cfg.ports.match, IDZEcho(self.core_cfg, self.game_cfg))
+        reactor.listenUDP(self.game_cfg.ports.userdb + 1, IDZEcho(self.core_cfg, self.game_cfg))
+        
+        self.logger.info(f"UserDB Listening on port {self.game_cfg.ports.userdb}")
+
+    def render_POST(self, request: Request, version: int, url_path: str) -> bytes:
+        req_raw = request.content.getvalue()        
+        self.logger.info(f"IDZ POST request: {url_path} - {req_raw}")
+        return b""
+
+    def render_GET(self, request: Request, version: int, url_path: str) -> bytes:
+        self.logger.info(f"IDZ GET request: {url_path}")    
+        request.responseHeaders.setRawHeaders('Content-Type', [b"text/plain; charset=utf-8"])
+        request.responseHeaders.setRawHeaders("Last-Modified", [b"Sun, 23 Apr 2023 05:33:20 GMT"])
+        
+        news = self.game_cfg.server.news if self.game_cfg.server.news else f"Welcome to Initial D Arcade Stage Zero on {self.core_cfg.server.name}!"
+        news += "\r\n"
+        news = "1979/01/01 00:00:00 2099/12/31 23:59:59 " + news
+
+        return news.encode()
diff --git a/titles/idz/match.py b/titles/idz/match.py
new file mode 100644
index 0000000..e69de29
diff --git a/titles/idz/userdb.py b/titles/idz/userdb.py
new file mode 100644
index 0000000..95a2eb9
--- /dev/null
+++ b/titles/idz/userdb.py
@@ -0,0 +1,162 @@
+from twisted.internet.protocol import Factory, Protocol
+import logging, coloredlogs
+from Crypto.Cipher import AES
+import struct
+from typing import Dict, Optional, List, Type
+from twisted.web import server, resource
+from twisted.internet import reactor, endpoints
+from twisted.web.http import Request
+from routes import Mapper
+import random
+from os import walk
+import importlib
+
+from core.config import CoreConfig
+from .database import IDZData
+from .config import IDZConfig
+from .const import IDZConstants
+from .handlers import IDZHandlerBase
+
+HANDLER_MAP: List[Dict]
+
+class IDZKey:
+    def __init__(self, n, d, e, hashN: int) -> None:
+        self.N = n
+        self.d = d
+        self.e = e
+        self.hashN = hashN
+
+class IDZUserDBProtocol(Protocol):
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig, keys: List[IDZKey], handlers: List[Dict]) -> None:
+        self.logger = logging.getLogger('idz')
+        self.core_config = core_cfg
+        self.game_config = game_cfg
+        self.rsa_keys = keys
+        self.handlers = handlers
+        self.static_key = bytes.fromhex(self.game_config.server.aes_key)
+        self.version = None
+        self.version_internal = None
+        self.skip_next = False
+    
+    def append_padding(self, data: bytes):
+        """Appends 0s to the end of the data until it's at the correct size"""
+        length = struct.unpack_from("<H", data, 6)
+        padding_size = length[0] - len(data)
+        data += bytes(padding_size)
+        return data
+    
+    def connectionMade(self) -> None:
+        self.logger.debug(f"{self.transport.getPeer().host} Connected")
+        base = 0
+
+        for i in range(len(self.static_key) - 1):
+            shift = 8 * i
+            byte = self.static_key[i]
+
+            base |= byte << shift
+
+        rsa_key = random.choice(self.rsa_keys)
+        key_enc: int = pow(base, rsa_key.e, rsa_key.N)
+        result = key_enc.to_bytes(0x40, "little") + struct.pack("<I", 0x01020304) + rsa_key.hashN.to_bytes(4, "little")
+
+        self.logger.debug(f"Send handshake {result.hex()}")
+
+        self.transport.write(result)
+
+    def connectionLost(self, reason) -> None: 
+        self.logger.debug(
+            f"{self.transport.getPeer().host} Disconnected - {reason.value}"
+        )
+
+    def dataReceived(self, data: bytes) -> None:
+        self.logger.debug(f"Receive data {data.hex()}")
+        crypt = AES.new(self.static_key, AES.MODE_ECB)
+        data_dec = crypt.decrypt(data)
+        self.logger.debug(f"Decrypt data {data_dec.hex()}")
+
+        magic = struct.unpack_from("<I", data_dec, 0)[0]
+
+        if magic == 0xFE78571D:
+            # Ignore
+            self.logger.info(f"Userdb serverbox request {data_dec.hex()}")
+            self.skip_next = True
+
+            self.transport.write(b"\x00")
+            return
+
+        elif magic == 0x01020304:            
+            self.version = int(data_dec[16:19].decode())
+
+            if self.version == 110:
+                self.version_internal = IDZConstants.VER_IDZ_110
+            elif self.version == 130:
+                self.version_internal = IDZConstants.VER_IDZ_130
+            elif self.version == 210:
+                self.version_internal = IDZConstants.VER_IDZ_210
+            elif self.version == 230:
+                self.version_internal = IDZConstants.VER_IDZ_230
+            else:
+                self.logger.warn(f"Bad version v{self.version}")
+                self.version = None
+                self.version_internal = None
+            
+            self.logger.debug(f"Userdb v{self.version} handshake response from {self.transport.getPeer().host}")
+            return
+        
+        elif self.skip_next:
+            self.skip_next = False
+            self.transport.write(b"\x00")
+            return
+
+        elif self.version is None:
+            # We didn't get a handshake before, and this isn't one now, so we're up the creek
+            self.logger.info(f"Bad UserDB request from from {self.transport.getPeer().host}")
+            self.transport.write(b"\x00")
+            return
+
+        cmd = struct.unpack_from("<H", data_dec, 0)[0]
+        
+        handler_cls: Optional[Type[IDZHandlerBase]] = self.handlers[self.version_internal].get(cmd, None)
+        if handler_cls is None:
+            self.logger.warn(f"No handler for v{self.version} {hex(cmd)} cmd")
+            handler_cls = IDZHandlerBase
+        
+        handler = handler_cls(self.core_config, self.game_config, self.version_internal)        
+        self.logger.info(f"Userdb v{self.version} {handler.name} request from {self.transport.getPeer().host}")
+        response = handler.handle(data_dec)
+
+        self.logger.debug(f"Response: {response.hex()}")
+
+        crypt = AES.new(self.static_key, AES.MODE_ECB)
+        response_enc = crypt.encrypt(response)
+
+        self.transport.write(response_enc)
+
+
+class IDZUserDBFactory(Factory):
+    protocol = IDZUserDBProtocol
+
+    def __init__(self, cfg: CoreConfig, game_cfg: IDZConfig, keys: List[IDZKey], handlers: List[Dict]) -> None:
+        self.core_config = cfg
+        self.game_config = game_cfg
+        self.keys = keys
+        self.handlers = handlers
+
+    def buildProtocol(self, addr):
+        return IDZUserDBProtocol(self.core_config, self.game_config, self.keys, self.handlers)
+
+class IDZUserDBWeb(resource.Resource):
+    def __init__(self, core_cfg: CoreConfig, game_cfg: IDZConfig):
+        super().__init__()
+        self.isLeaf = True
+        self.core_config = core_cfg
+        self.game_config = game_cfg
+        self.logger = logging.getLogger('idz')
+    
+    def render_POST(self, request: Request) -> bytes:
+        self.logger.info(f"IDZUserDBWeb POST from {request.getClientAddress().host} to {request.uri} with data {request.content.getvalue()}")
+        return b""
+
+    def render_GET(self, request: Request) -> bytes:
+        self.logger.info(f"IDZUserDBWeb GET from {request.getClientAddress().host} to {request.uri}")
+        return b""
\ No newline at end of file