diff --git a/src/ecs/systems/overlay_render.py b/src/ecs/systems/overlay_render.py
index 407a9ab..16d8c04 100644
--- a/src/ecs/systems/overlay_render.py
+++ b/src/ecs/systems/overlay_render.py
@@ -550,9 +550,7 @@ def _draw_settings_items(
                     # Calculate current grid size for display
                     current_grid_size = 20
                     if self._config:
-                        desired_cells = max(
-                            10, int(self._settings.get("cells_per_side"))
-                        )
+                        desired_cells = int(self._settings.get("cells_per_side"))
                         current_grid_size = self._config.get_optimal_grid_size(
                             desired_cells
                         )
diff --git a/src/ecs/systems/settings_apply.py b/src/ecs/systems/settings_apply.py
index 8b1d125..97cec5b 100644
--- a/src/ecs/systems/settings_apply.py
+++ b/src/ecs/systems/settings_apply.py
@@ -155,8 +155,6 @@ def _apply_grid_size_change(self, world: World, desired_cells: int) -> None:
             world: ECS world instance
             desired_cells: Desired number of cells per side
         """
-        # ensure minimum size
-        desired_cells = max(10, int(desired_cells))
 
         # For autoplay mode, enforce even grid size (maze algorithm requires it)
         from game.game_modes_registry import AUTOPLAY_MODE_NAME
diff --git a/src/ecs/systems/ui/settings_applicator.py b/src/ecs/systems/ui/settings_applicator.py
index 732f889..22e1619 100644
--- a/src/ecs/systems/ui/settings_applicator.py
+++ b/src/ecs/systems/ui/settings_applicator.py
@@ -133,7 +133,7 @@ def apply_settings(self, settings: Any, reset_objects: bool = False) -> None:
         old_grid = self._state.grid_size
 
         # Calculate new grid size from desired cells per side
-        desired_cells = max(10, int(settings.get("cells_per_side")))
+        desired_cells = int(settings.get("cells_per_side"))
         new_grid_size = self._config.get_optimal_grid_size(desired_cells)
 
         # Calculate obstacles from difficulty
diff --git a/src/game/settings.py b/src/game/settings.py
index fb96821..29e5560 100644
--- a/src/game/settings.py
+++ b/src/game/settings.py
@@ -162,7 +162,7 @@ class GameSettings:
             "label": "Board size",
             "type": "int",
             "min": 5,
-            "max": 60,
+            "max": 90,
             "step": 1,
             "requires_reset": True,
             "category": "Display",