diff --git a/src/ai/evaluation.py b/src/ai/evaluation.py
new file mode 100644
index 0000000..ae7d0f7
--- /dev/null
+++ b/src/ai/evaluation.py
@@ -0,0 +1,33 @@
+import neat
+from game import Main
+
+from .fitness import calculate_fitness
+from .log import log
+
+
+def eval_genomes(genomes, config: neat.Config) -> None:
+    app = Main()
+    app.run()
+    for genome_id, genome in genomes:
+        genome.fitness = calculate_fitness(app)
+        net = neat.nn.FeedForwardNetwork.create(genome, config)
+        while not app.game.game_over():
+            output = net.activate(app.game.field)
+
+            decision = output.index(max(output))
+
+            decisions = {
+                0: app.game.move_left,
+                1: app.game.move_right,
+                2: app.game.rotate,
+                3: app.game.rotate_reverse,
+                4: app.game.drop,
+            }
+
+            decisions[decision]()
+
+        genome.fitness = calculate_fitness(app)
+        log.info(
+            f"{genome_id=}\t{genome.fitness=}\t{app.game.score=}\t{app.game.lines=}\t{app.game.level=}"
+        )
+        app.game.restart()