diff --git a/.gitignore b/.gitignore
index a376f21..070453f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -161,3 +161,4 @@ cython_debug/
 debug
 .logs/
 checkpoints
+./assets/highscore
diff --git a/assets/highscore b/assets/highscore
new file mode 100644
index 0000000..90afd51
--- /dev/null
+++ b/assets/highscore
@@ -0,0 +1 @@
+940
\ No newline at end of file
diff --git a/src/game/screens/game.py b/src/game/screens/game.py
index a429796..8e27485 100644
--- a/src/game/screens/game.py
+++ b/src/game/screens/game.py
@@ -51,7 +51,7 @@ class Game(BaseScreen):
         self.preview.run()
 
         self.draw()
-        self.clock.tick(CONFIG.fps)
+        self.clock.tick(CONFIG.game.fps)
 
     def mute(self) -> None:
         """Mute the game."""
diff --git a/src/game/screens/score.py b/src/game/screens/score.py
index 9d39c1f..213416c 100644
--- a/src/game/screens/score.py
+++ b/src/game/screens/score.py
@@ -1,15 +1,46 @@
 import pygame
-from loguru import logger
-from utils import CONFIG, GameMode, Size
+from utils import CONFIG, GameMode
 
 from .base import BaseScreen, SceenElement, TextScreen
 
 
+def save_score(score: int) -> None:
+    """
+    Save the score to the highscore file.
+
+    Args:
+        score: The score to be saved.
+    """
+    with open(CONFIG.game.highscore, "w") as file:
+        file.write(str(score))
+
+
+def read_score() -> int:
+    """
+    Read the score from the highscore file.
+
+    Returns:
+        The score read from the file.
+    """
+    try:
+        with open(CONFIG.game.highscore, "r") as file:
+            return int(file.read())
+    except FileNotFoundError:
+        return 0
+    except ValueError:
+        return 0
+
+
 class Score(BaseScreen, SceenElement, TextScreen):
     """
     Class representing the score on the sidebar.
 
+    Args:
+        game_mode: The game mode.
+
     Attributes:
+        game_mode: The game mode.
+        highscore: The highscore.
         surface: Pygame surface representing the score.
         display_surface: Pygame display surface.
         rect: Pygame rectangle representing the score.
@@ -20,6 +51,7 @@ class Score(BaseScreen, SceenElement, TextScreen):
 
     def __init__(self, game_mode: GameMode) -> None:
         self.game_mode = game_mode
+        self.highscore: int = read_score()
         self._initialize_surface()
         self._initialize_rect()
         self._initialize_font()
@@ -39,11 +71,16 @@ class Score(BaseScreen, SceenElement, TextScreen):
             score (int): Current game score.
             level (int): Current game level.
         """
+
+        if score > self.highscore:
+            self.highscore = score
+            save_score(score)
+
         self.text: list[tuple[str, int]] = [
             ("Score", score),
             ("Level", level),
             ("Lines", lines),
-            ("High Score", CONFIG.game.highscore),
+            ("High Score", self.highscore),
         ]
         if self.game_mode in (GameMode.AI_PLAYING, GameMode.AI_TRAINING):
             self.text.append(("Generations", 0))
diff --git a/src/utils/config.py b/src/utils/config.py
index c25e248..e1e0487 100644
--- a/src/utils/config.py
+++ b/src/utils/config.py
@@ -28,7 +28,8 @@ class Game:
     rotation_delay: int = 200
     drop_delay: int = 200
     score: dict[int, int] = {1: 40, 2: 100, 3: 300, 4: 1200}
-    highscore: int = 1_000_000  # TODO: read from file
+    highscore: Path = BASE_PATH / "assets" / "highscore"
+    fps: int = 60
 
 
 @define
@@ -67,23 +68,6 @@ class Music:
     landing: Path = BASE_PATH / "assets" / "music" / "landing.wav"
 
 
-@define
-class Checkpoint:
-    generation_interval: int = 10
-    time_interval: float = 900
-    filename_prefix: str = str(BASE_PATH / "checkpoints" / "neat-checkpoint-")
-
-
-@define
-class AI:
-    generations: int = 200
-    parallels: int = 1
-    winner_path: Path = BASE_PATH / "winner"
-    plot_path: Path = BASE_PATH / "plots"
-    config_path: Path = BASE_PATH / "config"
-    checkpoint: Checkpoint = Checkpoint()
-
-
 @define
 class Config:
     game: Game = Game()
@@ -95,8 +79,5 @@ class Config:
         read_settings()["General"]["colorscheme"], TokyoNightNight
     )()
 
-    ai = AI()
-    fps: int = 60
-
 
 CONFIG = Config()