diff --git a/py_conway/game.py b/py_conway/game.py
index 339c693..1b007a3 100644
--- a/py_conway/game.py
+++ b/py_conway/game.py
@@ -7,8 +7,22 @@ InitError exception object.
 from random import randint
 from .helpers import PseudoEnum
 
-
-GameState = PseudoEnum(["READY", "RUNNING", "FINISHED"])
+"""Enum for managing the state of a game.
+
+Uses a custom PseudoEnum class because Enum support is not available
+on CircuitPython/MicroPython.
+
+States:
+    READY: The game is initialized and ready to start.
+    RUNNING: The game is currently running.
+    STASIS: The game has reached a point where the board is empty, or the
+            only remaining cells are either still-life or oscillator objects.
+            A game in stasis can still be run, but this state is indicated
+            as a flag so the game consumer can catch stasis conditions
+            and automatically restart or stop the game.
+    FINISHED: The game has stopped and is ready for a new game to begin.
+"""
+GameState = PseudoEnum(["READY", "RUNNING", "STASIS", "FINISHED"])
 
 
 class InitError(Exception):
@@ -53,6 +67,7 @@ class Game:
         """
         self.board_size = (columns, rows)
         self._enforce_boundary = enforce_boundary
+        self._previous_board = None
 
         if seed is None:
             if columns == 0 or rows == 0:
@@ -211,7 +226,7 @@ class Game:
         Once every cell has been checked against Conway's three rules,
         the entire state grid is updated at once.
         """
-        if (self.state != GameState.RUNNING):
+        if self.state != GameState.RUNNING and self.state != GameState.STASIS:
             return
 
         # Get a deep copy of the state to track cells that will need
@@ -233,6 +248,19 @@ class Game:
                         upcoming_live_cells += 1
                     intermediate_state[row_index][col_index] = 1
 
-        self.current_board = [row[:] for row in intermediate_state]
         self.generations += 1
         self.live_cells = upcoming_live_cells
+
+        # When a board only contains still-live cells, there will
+        # be no change in state
+        if self.current_board == intermediate_state:
+            self.state = GameState.STASIS
+        # Alternatively, when the state is the same every other generation
+        # we have an oscillator on our hands and should also change
+        # the state to STASIS
+        elif self._previous_board == intermediate_state:
+            self.state = GameState.STASIS
+        # Otherwise, the game is still running normally
+        else:
+            self._previous_board = self.current_board
+            self.current_board = [row[:] for row in intermediate_state]

Detect a still-life or oscillator state and update the Game state accordingly
diff --git a/tests/test_conway.py b/tests/test_conway.py
index ed722df..d00645a 100644
--- a/tests/test_conway.py
+++ b/tests/test_conway.py
@@ -282,7 +282,8 @@ def test_threaded_game_still_life_game_will_continue_to_run():
     test_game = ThreadedGame(4, 4, seed)
     test_game.start_thread()
 
-    assert test_game.state == GameState.RUNNING
+    assert test_game.state == GameState.STASIS
+    assert test_game.generations > 1
 
 
 def test_still_life_game_can_be_stopped():
@@ -294,11 +295,11 @@ def test_still_life_game_can_be_stopped():
     test_game = ThreadedGame(4, 4, seed)
     test_game.start_thread()
 
-    assert test_game.state == GameState.RUNNING
+    assert test_game.state == GameState.STASIS
 
     test_game.stop_thread()
 
-    time.sleep(.01)
+    time.sleep(.10)
 
     assert test_game.state == GameState.FINISHED
 
@@ -451,3 +452,35 @@ def test_game_can_be_stopped_while_running():
     my_game.stop()
 
     assert my_game.state == GameState.FINISHED
+
+
+def test_game_still_life_changes_status_to_stasis():
+    seed = [[0, 0, 0, 0],
+            [0, 1, 1, 0],
+            [0, 1, 1, 0],
+            [0, 0, 0, 0]]
+
+    my_game = Game(seed=seed)
+
+    my_game.start()
+    my_game.run_generation()
+
+    assert my_game.state == GameState.STASIS
+
+
+def test_game_oscillator_changes_status_to_stasis():
+    seed = [[0, 0, 1, 0],
+            [0, 0, 1, 0],
+            [0, 0, 1, 0],
+            [0, 0, 0, 0]]
+
+    my_game = Game(seed=seed)
+
+    my_game.start()
+    my_game.run_generation()
+
+    assert my_game.state == GameState.RUNNING
+
+    my_game.run_generation()
+
+    assert my_game.state == GameState.STASIS

pip install -e .[dev]
parse_log_pytest
requirements.txt
pytest>=4.4.0 pytest-cov pytest-ordering pytest-subtests pytest-timeout pytest
3.9
requirements-dev.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
attrs==25.3.0
coverage==7.8.0
exceptiongroup==1.2.2
iniconfig==2.1.0
packaging==24.2
pluggy==1.5.0
-e git+https://github.com/bsatrom/py-conway.git@e92a78c71c951c0a2a0e9762a80aa27517d8c44d#egg=py_conway
pytest==8.3.5
pytest-cov==6.0.0
pytest-ordering==0.6
pytest-subtests==0.14.1
pytest-timeout==2.3.1
tomli==2.2.1

name: py-conway
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=3.0.16=h5eee18b_0
  - pip=25.0=py39h06a4308_0
  - python=3.9.21=he870216_1
  - readline=8.2=h5eee18b_0
  - setuptools=75.8.0=py39h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - tzdata=2025a=h04d1e81_0
  - wheel=0.45.1=py39h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - attrs==25.3.0
      - coverage==7.8.0
      - exceptiongroup==1.2.2
      - iniconfig==2.1.0
      - packaging==24.2
      - pluggy==1.5.0
      - pytest==8.3.5
      - pytest-cov==6.0.0
      - pytest-ordering==0.6
      - pytest-subtests==0.14.1
      - pytest-timeout==2.3.1
      - tomli==2.2.1
prefix: /opt/conda/envs/py-conway

tests/test_conway.py::test_threaded_game_still_life_game_will_continue_to_run tests/test_conway.py::test_still_life_game_can_be_stopped tests/test_conway.py::test_game_still_life_changes_status_to_stasis tests/test_conway.py::test_game_oscillator_changes_status_to_stasis
tests/test_conway.py::test_game_init tests/test_conway.py::test_test_game_init_seed tests/test_conway.py::test_test_game_init_defaults tests/test_conway.py::test_test_game_init_board_default_seed tests/test_conway.py::test_test_game_3_x_3_check_cell_with_one_neighbor tests/test_conway.py::test_test_game_3_x_3_check_cell_with_two_neighbors tests/test_conway.py::test_test_game_3_x_3_check_cell_with_three_neighbors tests/test_conway.py::test_single_column_array tests/test_conway.py::test_3_x_3_single_cell_single_run tests/test_conway.py::test_3_x_3_three_neighbors_single_run tests/test_conway.py::test_3_x_3_four_neighbors_single_run tests/test_conway.py::test_4_x_3_three_neighbors_single_run tests/test_conway.py::test_3_x_3_empty_seed_no_live_cells tests/test_conway.py::test_3_x_3_seed_five_live_cells tests/test_conway.py::test_increment_live_cells_after_update tests/test_conway.py::test_update_generations_count_after_each_generation tests/test_conway.py::test_3_x_3_four_neighbors_two_runs tests/test_conway.py::test_default_game_state_ready tests/test_conway.py::test_threaded_start_game_changes_state_to_running tests/test_conway.py::test_threaded_empty_board_run_game_until_no_living_cells_left tests/test_conway.py::test_ensure_that_width_height_and_seed_match tests/test_conway.py::test_ensure_that_live_cells_count_is_accurate_before_run tests/test_conway.py::test_no_seed_ensure_live_cells_count_is_accurate_before_run tests/test_conway.py::test_ensure_that_seed_includes_valid_data tests/test_conway.py::test_generate_random_seed_generates_random_seed tests/test_conway.py::test_enable_boundary_wrapping_on_board tests/test_conway.py::test_dont_run_generation_when_game_not_started tests/test_conway.py::test_start_can_be_used_to_restart_the_game tests/test_conway.py::test_reseed_can_be_used_to_create_a_new_random_seed tests/test_conway.py::test_cannot_reseed_when_game_is_active tests/test_conway.py::test_empty_width_raises_error_when_no_seed_provided tests/test_conway.py::test_empty_height_raises_error_when_no_seed_provided tests/test_conway.py::test_calculate_proper_width_and_height_when_seed_provided tests/test_conway.py::test_changing_seed_does_not_change_current_board tests/test_conway.py::test_game_with_differing_dimensions_and_random_seed tests/test_conway.py::test_game_can_be_stopped_while_running
py_conway/game.py
py_conway/game.py