diff --git a/game/level_management.py b/game/level_management.py
index ca73220dc..cb61a8f6f 100644
--- a/game/level_management.py
+++ b/game/level_management.py
@@ -165,6 +165,7 @@ def save_level(level, data):
     level.pythonViewEnabled = data.get("pythonViewEnabled", False)
     level.theme = get_theme_by_pk(pk=data["theme"])
     level.character = get_character_by_pk(pk=data["character"])
+    level.disable_algorithm_score = data.get("disable_algorithm_score", False)
     level.save()
 
     set_decor(level, data["decor"])
diff --git a/game/migrations/0092_disable_algo_score_in_custom_levels.py b/game/migrations/0092_disable_algo_score_in_custom_levels.py
new file mode 100644
index 000000000..678f5da25
--- /dev/null
+++ b/game/migrations/0092_disable_algo_score_in_custom_levels.py
@@ -0,0 +1,28 @@
+from django.apps.registry import Apps
+from django.db import migrations
+
+def disable_algo_score_for_existing_custom_levels(apps: Apps, *args):
+    Level = apps.get_model("game", "Level")
+
+    Level.objects.filter(
+        default=False
+    ).update(disable_algorithm_score=True)
+
+def enable_algo_score_for_existing_custom_levels(apps: Apps, *args):
+    Level = apps.get_model("game", "Level")
+
+    Level.objects.filter(
+        default=False
+    ).update(disable_algorithm_score=False)
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("game", "0091_disable_algo_score_if_no_model_solution")
+    ]
+
+    operations = [
+        migrations.RunPython(
+            disable_algo_score_for_existing_custom_levels, 
+            reverse_code=enable_algo_score_for_existing_custom_levels
+        )
+    ]
\ No newline at end of file
diff --git a/game/static/game/js/level_editor.js b/game/static/game/js/level_editor.js
index c5fed2189..96b0f7739 100644
--- a/game/static/game/js/level_editor.js
+++ b/game/static/game/js/level_editor.js
@@ -2284,6 +2284,7 @@ ocargo.LevelEditor = function(levelId) {
         // Other data
         state.theme = currentTheme.id;
         state.character = $('#character_select').val();
+        state.disable_algorithm_score = true;
 
         return state;
     }
diff --git a/game/templates/game/game.html b/game/templates/game/game.html
index c4e8df780..ace7b34d0 100644
--- a/game/templates/game/game.html
+++ b/game/templates/game/game.html
@@ -7,15 +7,15 @@
 
 {% block scripts %}
 {{block.super}}
-<script defer id="data"
-	data-path="{{level.path|trim}}"
-	data-origin="{{level.origin|trim}}"
-	data-destinations="{{level.destinations|trim}}"
-	data-traffic-lights="{{level.traffic_lights|trim}}"
-	data-cows="{{level.cows|trim}}"
-	data-episode="{{level.episode.id|trim}}"
-	data-level-id="{{level.id|default_if_none:''|trim}}"
-        data-level-name="{{level.name|trim}}"
+  <script defer id="data"
+    data-path="{{level.path|trim}}"
+    data-origin="{{level.origin|trim}}"
+    data-destinations="{{level.destinations|trim}}"
+    data-traffic-lights="{{level.traffic_lights|trim}}"
+    data-cows="{{level.cows|trim}}"
+    data-episode="{{level.episode.id|trim}}"
+    data-level-id="{{level.id|default_if_none:''|trim}}"
+    data-level-name="{{level.name|trim}}"
   >
     var ANONYMOUS = {{level.anonymous|booltojs}}
     var PATH = $('#data').data('path')
diff --git a/game/tests/test_level_editor.py b/game/tests/test_level_editor.py
index a4c538ff6..a934fdeaf 100644
--- a/game/tests/test_level_editor.py
+++ b/game/tests/test_level_editor.py
@@ -1,4 +1,5 @@
 import json
+from unittest.mock import patch
 
 from common.models import Teacher
 from common.tests.utils.classes import create_class_directly
@@ -13,7 +14,7 @@
 from hamcrest import assert_that, equal_to
 
 from game.models import Level
-from game.tests.utils.level import create_save_level, create_save_level_with_multiple_houses
+from game.tests.utils.level import create_save_level, create_save_level_with_multiple_houses, multiple_house_data
 from game.tests.utils.teacher import add_teacher_to_school, create_school
 
 
@@ -392,6 +393,24 @@ def test_level_loading_with_multiple_houses(self):
         assert response.status_code == 200
         assert response_data["level"]["destinations"] == "[[3,4], [3,3]]"
 
+    @patch("game.level_management.save_level")
+    def test_custom_level_scoring(self, mock_save_level):
+        email1, password1 = signup_teacher_directly()
+
+        teacher1 = Teacher.objects.get(new_user__email=email1)
+
+        self.login(email1, password1)
+
+        level = create_save_level_with_multiple_houses(teacher1)
+
+        save_url = reverse("save_level_for_editor", kwargs={"levelId": level.id})
+        response = self.client.post(save_url, {"data": json.dumps(multiple_house_data)})
+
+        disable_algorithm_score = mock_save_level.call_args.args[1]["disable_algorithm_score"]
+
+        assert response.status_code == 200
+        assert disable_algorithm_score
+
     def test_level_of_anonymised_teacher_is_hidden(self):
         # Create 2 teacher accounts
         email1, password1 = signup_teacher_directly()
diff --git a/game/tests/utils/level.py b/game/tests/utils/level.py
index cb06fd4e0..dfe7dbb38 100644
--- a/game/tests/utils/level.py
+++ b/game/tests/utils/level.py
@@ -2,6 +2,29 @@
 from game.models import Level
 
 
+multiple_house_data = {
+    "origin": '{"coordinate":[3,5],"direction":"S"}',
+    "pythonEnabled": False,
+    "decor": [],
+    "blocklyEnabled": True,
+    "blocks": [
+        {"type": "move_forwards"},
+        {"type": "turn_left"},
+        {"type": "turn_right"},
+    ],
+    "max_fuel": "50",
+    "pythonViewEnabled": False,
+    "character": "3",
+    "name": "2",
+    "theme": 1,
+    "anonymous": False,
+    "cows": "[]",
+    "path": '[{"coordinate":[3,5],"connectedNodes":[1]},{"coordinate":[3,4],"connectedNodes":[0,2]}, {"coordinate": [3,3], "connectedNodes":[1]}]',
+    "traffic_lights": "[]",
+    "destinations": "[[3,4], [3,3]]",
+}
+
+
 def create_save_level(teacher_or_student, level_name="1", shared_with=None):
     data = {
         "origin": '{"coordinate":[3,5],"direction":"S"}',
@@ -37,30 +60,9 @@ def create_save_level(teacher_or_student, level_name="1", shared_with=None):
     return level
 
 def create_save_level_with_multiple_houses(teacher_or_student, level_name="2", shared_with=None):
-    data = {
-        "origin": '{"coordinate":[3,5],"direction":"S"}',
-        "pythonEnabled": False,
-        "decor": [],
-        "blocklyEnabled": True,
-        "blocks": [
-            {"type": "move_forwards"},
-            {"type": "turn_left"},
-            {"type": "turn_right"},
-        ],
-        "max_fuel": "50",
-        "pythonViewEnabled": False,
-        "character": "3",
-        "name": level_name,
-        "theme": 1,
-        "anonymous": False,
-        "cows": "[]",
-        "path": '[{"coordinate":[3,5],"connectedNodes":[1]},{"coordinate":[3,4],"connectedNodes":[0,2]}, {"coordinate": [3,3], "connectedNodes":[1]}]',
-        "traffic_lights": "[]",
-        "destinations": "[[3,4], [3,3]]",
-    }
-    level = Level(default=False, anonymous=data["anonymous"])
+    level = Level(default=False, anonymous=multiple_house_data["anonymous"])
     level.owner = teacher_or_student.user
-    level_management.save_level(level, data)
+    level_management.save_level(level, multiple_house_data)
     level.save()
 
     if shared_with is not None:
diff --git a/game/views/level_editor.py b/game/views/level_editor.py
index 5e2918ef7..09a644a25 100644
--- a/game/views/level_editor.py
+++ b/game/views/level_editor.py
@@ -208,6 +208,8 @@ def load_level_for_editor(request, levelID):
 def save_level_for_editor(request, levelId=None):
     """Processes a request on creation of the map in the level editor"""
     data = json.loads(request.POST["data"])
+    data["disable_algorithm_score"] = True
+
     if ("character" not in data) or (not data["character"]):
         # Set a default, to deal with issue #1158 "Cannot save custom level"
         data["character"] = 1
@@ -269,7 +271,7 @@ def save_level_for_editor(request, levelId=None):
 
             level.save()
         response = {"id": level.id}
-        return HttpResponse(json.dumps(response), content_type="application/javascript")
+        return HttpResponse(json.dumps(response), content_type="application/json")
     else:
         return HttpResponseUnauthorized()