diff --git a/test/test_char.py b/test/test_char.py
new file mode 100644
index 0000000..12ab7ad
--- /dev/null
+++ b/test/test_char.py
@@ -0,0 +1,39 @@
+"""
+Tests for char module — IChar base class and CharacterCapabilities.
+
+Covers: character construction, capability dataclass, active skill tracking.
+"""
+import pytest
+from logger import Logger
+
+
+class TestCharacterCapabilities:
+    def test_capabilities_dataclass(self):
+        from char.capabilities import CharacterCapabilities
+        caps = CharacterCapabilities(can_teleport_natively=True, can_teleport_with_charges=False)
+        assert caps.can_teleport_natively is True
+        assert caps.can_teleport_with_charges is False
+
+
+class TestIChar:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+
+    def test_ichar_initializes_skill_hotkeys(self):
+        from char.i_char import IChar
+        char = IChar({"left_attack": "1", "right_attack": "2"})
+        assert char._skill_hotkeys["left_attack"] == "1"
+        assert char._skill_hotkeys["right_attack"] == "2"
+
+    def test_ichar_active_skill_defaults_empty(self):
+        from char.i_char import IChar
+        char = IChar({"left_attack": "1", "right_attack": "2"})
+        assert char._active_skill["left"] == ""
+        assert char._active_skill["right"] == ""
+
+    def test_ichar_set_active_skill(self):
+        from char.i_char import IChar
+        char = IChar({"left_attack": "1", "right_attack": "2"})
+        char._set_active_skill("left", "hammer")
+        assert char._active_skill["left"] == "hammer"
\ No newline at end of file
diff --git a/test/test_config.py b/test/test_config.py
new file mode 100644
index 0000000..d835388
--- /dev/null
+++ b/test/test_config.py
@@ -0,0 +1,51 @@
+"""
+Tests for config.Config singleton and edge cases.
+
+Covers: singleton behavior, config file merging, missing file handling.
+"""
+import os
+import pytest
+from logger import Logger
+
+
+class TestConfig:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+        # Reset singleton so each test gets a fresh config
+        import config
+        if hasattr(config, '_instance'):
+            config._instance = None
+
+    def test_config_is_singleton(self):
+        from config import Config
+        c1 = Config()
+        c2 = Config()
+        assert c1 is c2
+
+    def test_config_loads_difficulty(self):
+        from config import Config
+        c = Config()
+        assert "difficulty" in c.general
+
+    def test_config_loads_char_type(self):
+        from config import Config
+        c = Config()
+        assert "type" in c.char
+
+    def test_config_loads_routes(self):
+        from config import Config
+        c = Config()
+        assert hasattr(c, 'routes')
+
+    def test_config_general_has_max_game_length(self):
+        from config import Config
+        c = Config()
+        assert "max_game_length_s" in c.general
+
+    def test_config_char_has_keybinds(self):
+        from config import Config
+        c = Config()
+        # hammerdin config should have stand_still and show_items
+        assert "stand_still" in c.char
+        assert "show_items" in c.char
\ No newline at end of file
diff --git a/test/test_death_manager.py b/test/test_death_manager.py
new file mode 100644
index 0000000..42783b7
--- /dev/null
+++ b/test/test_death_manager.py
@@ -0,0 +1,38 @@
+"""
+Tests for death_manager state management logic.
+
+Covers: death flag, callback wiring, monitor state, reset.
+All testable without a real D2R client.
+"""
+import pytest
+from logger import Logger
+
+
+class TestDeathManager:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+        from death_manager import DeathManager
+        self.dm = DeathManager()
+
+    def test_died_defaults_false(self):
+        assert self.dm.died() is False
+
+    def test_loop_delay(self):
+        assert self.dm.get_loop_delay() == 0.5
+
+    def test_callback_set_and_stored(self):
+        cb_called = []
+        self.dm.set_callback(lambda: cb_called.append(1))
+        assert self.dm._callback is not None
+        self.dm._callback()
+        assert cb_called == [1]
+
+    def test_stop_monitor(self):
+        self.dm.stop_monitor()
+        assert self.dm._do_monitor is False
+
+    def test_reset_death_flag(self):
+        self.dm._died = True
+        self.dm.reset_death_flag()
+        assert self.dm.died() is False
\ No newline at end of file
diff --git a/test/test_game_controller.py b/test/test_game_controller.py
new file mode 100644
index 0000000..9bed895
--- /dev/null
+++ b/test/test_game_controller.py
@@ -0,0 +1,44 @@
+"""
+Tests for game_controller initialization and state.
+
+Covers: GameController creates Bot, DeathManager, HealthManager, GameRecovery.
+Tests the wiring between components without needing a real D2R client.
+"""
+import pytest
+from logger import Logger
+
+
+class TestGameController:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+        # Reset singletons
+        import config
+        if hasattr(config, '_instance'):
+            config._instance = None
+        from health_manager import HealthManager
+        HealthManager._instance = None
+
+    def test_gamecontroller_creates_components(self):
+        from game_controller import GameController
+        gc = GameController()
+        assert gc.game_stats is not None
+        assert gc.is_running is False
+
+    def test_gamecontroller_creates_death_manager(self):
+        from game_controller import GameController
+        gc = GameController()
+        gc.start()
+        assert gc.death_manager is not None
+
+    def test_gamecontroller_creates_health_manager(self):
+        from game_controller import GameController
+        gc = GameController()
+        gc.start()
+        assert gc.health_manager is not None
+
+    def test_gamecontroller_creates_game_recovery(self):
+        from game_controller import GameController
+        gc = GameController()
+        gc.start()
+        assert gc.game_recovery is not None
\ No newline at end of file
diff --git a/test/test_game_recovery.py b/test/test_game_recovery.py
new file mode 100644
index 0000000..6ce0916
--- /dev/null
+++ b/test/test_game_recovery.py
@@ -0,0 +1,20 @@
+"""
+Tests for game_recovery.
+
+Covers: GameRecovery constructor and death_manager reference.
+"""
+import pytest
+from logger import Logger
+
+
+class TestGameRecovery:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+
+    def test_recovery_holds_death_manager_ref(self):
+        from death_manager import DeathManager
+        from game_recovery import GameRecovery
+        dm = DeathManager()
+        gr = GameRecovery(dm)
+        assert gr._death_manager is dm
\ No newline at end of file
diff --git a/test/test_health_manager.py b/test/test_health_manager.py
new file mode 100644
index 0000000..e411f77
--- /dev/null
+++ b/test/test_health_manager.py
@@ -0,0 +1,55 @@
+"""
+Tests for health_manager state management logic.
+
+Covers: pause state, panel check paused, chicken flag, callback wiring.
+These are all testable without a real D2R client — they're just state machines.
+"""
+import pytest
+from logger import Logger
+
+
+class TestHealthManager:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+        from health_manager import HealthManager
+        self.HM = HealthManager
+        self.hm = HealthManager()
+
+    def test_pause_state_defaults_to_true(self):
+        assert self.hm.get_pause_state() is True
+
+    def test_set_pause_state_changes(self):
+        self.hm.set_pause_state(False)
+        assert self.hm.get_pause_state() is False
+        self.hm.set_pause_state(True)
+        assert self.hm.get_pause_state() is True
+
+    def test_panel_check_paused_defaults_to_false(self):
+        assert self.hm.get_panel_check_paused() is False
+
+    def test_set_panel_check_paused_changes(self):
+        self.hm.set_panel_check_paused(True)
+        assert self.hm.get_panel_check_paused() is True
+        self.hm.set_panel_check_paused(False)
+        assert self.hm.get_panel_check_paused() is False
+
+    def test_chicken_flag_defaults_false(self):
+        assert self.hm.did_chicken() is False
+
+    def test_callback_set_and_stored(self):
+        cb_called = []
+        self.hm.set_callback(lambda: cb_called.append(1))
+        assert self.hm._callback is not None
+        self.hm._callback()
+        assert cb_called == [1]
+
+    def test_stop_monitor_sets_flag(self):
+        self.hm.stop_monitor()
+        assert self.hm._do_monitor is False
+
+    def test_reset_chicken_flag(self):
+        self.hm._did_chicken = True
+        self.hm.reset_chicken_flag()
+        assert self.hm.did_chicken() is False
+        assert self.hm.get_pause_state() is True
\ No newline at end of file
diff --git a/test/test_inventory_belt.py b/test/test_inventory_belt.py
new file mode 100644
index 0000000..5524b9c
--- /dev/null
+++ b/test/test_inventory_belt.py
@@ -0,0 +1,26 @@
+"""
+Tests for inventory.belt logic.
+
+Covers: potion type detection, belt toggle keys.
+"""
+import pytest
+import numpy as np
+from logger import Logger
+
+
+class TestInventoryBelt:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+
+    def test_belt_toggle_keys_returns_list(self):
+        from inventory.belt import _belt_toggle_keys
+        keys = _belt_toggle_keys()
+        assert isinstance(keys, list)
+        assert len(keys) > 0
+
+    def test_cut_potion_img_returns_array(self):
+        from inventory.belt import _cut_potion_img
+        img = np.full((100, 100, 3), 255, dtype=np.uint8)
+        result = _cut_potion_img(img, 0, 0)
+        assert isinstance(result, np.ndarray)
\ No newline at end of file
diff --git a/test/test_item_pickit.py b/test/test_item_pickit.py
new file mode 100644
index 0000000..e58e70f
--- /dev/null
+++ b/test/test_item_pickit.py
@@ -0,0 +1,24 @@
+"""
+Tests for item.pickit PickedUpResult enum and basic logic.
+
+Covers: the result enum values and the pickit import chain.
+"""
+import pytest
+from logger import Logger
+
+
+class TestPickit:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+
+    def test_pickedupresult_enum_values(self):
+        from item.pickit import PickedUpResult
+        assert PickedUpResult.TeleportedTo.value == 0
+        assert PickedUpResult.PickedUp.value == 1
+        assert PickedUpResult.PickedUpFailed.value == 2
+
+    def test_pickit_imports_without_error(self):
+        # This verifies the full import chain: pickit -> bnip -> d2r_image -> config
+        from item.pickit import PickedUpResult
+        assert PickedUpResult is not None
\ No newline at end of file
diff --git a/test/test_ui_meters.py b/test/test_ui_meters.py
new file mode 100644
index 0000000..33d2593
--- /dev/null
+++ b/test/test_ui_meters.py
@@ -0,0 +1,41 @@
+"""
+Tests for ui.meters — health/mana/merc health reading.
+
+These test the math: given a known image, the percentage should be deterministic.
+"""
+import pytest
+import numpy as np
+import cv2
+from logger import Logger
+from config import Config
+
+
+class TestMeters:
+    def setup_method(self):
+        Logger.init()
+        Logger.remove_file_logger()
+
+    def test_get_health_returns_value_between_0_and_1(self):
+        from ui.meters import get_health
+        # All-white image — no red/green pixels, so health = 0
+        img = np.full((720, 1280, 3), 255, dtype=np.uint8)
+        result = get_health(img)
+        assert 0.0 <= result <= 1.0
+
+    def test_get_mana_returns_value_between_0_and_1(self):
+        from ui.meters import get_mana
+        img = np.full((720, 1280, 3), 255, dtype=np.uint8)
+        result = get_mana(img)
+        assert 0.0 <= result <= 1.0
+
+    def test_get_merc_health_returns_value_between_0_and_1(self):
+        from ui.meters import get_merc_health
+        img = np.full((720, 1280, 3), 255, dtype=np.uint8)
+        result = get_merc_health(img)
+        assert 0.0 <= result <= 1.0
+
+    def test_get_merc_health_black_image_is_zero(self):
+        from ui.meters import get_merc_health
+        img = np.zeros((720, 1280, 3), dtype=np.uint8)
+        result = get_merc_health(img)
+        assert result == 0.0
\ No newline at end of file