diff --git a/worlds/subnautica/__init__.py b/worlds/subnautica/__init__.py
index 341af5a5..53c04fb3 100644
--- a/worlds/subnautica/__init__.py
+++ b/worlds/subnautica/__init__.py
@@ -41,7 +41,7 @@ class SubnauticaWorld(World):
     location_name_to_id = all_locations
     option_definitions = Options.options
 
-    data_version = 8
+    data_version = 9
     required_client_version = (0, 3, 8)
 
     creatures_to_scan: List[str]
diff --git a/worlds/subnautica/test/__init__.py b/worlds/subnautica/test/__init__.py
new file mode 100644
index 00000000..ea7fbb61
--- /dev/null
+++ b/worlds/subnautica/test/__init__.py
@@ -0,0 +1,15 @@
+import unittest
+from worlds import subnautica
+
+
+class SubnauticaTest(unittest.TestCase):
+    # This is an assumption in the mod side
+    scancutoff: int = 33999
+
+    def testIDRange(self):
+        for id, name in subnautica.SubnauticaWorld.location_name_to_id.items():
+            with self.subTest(item=name):
+                if "Scan" in name:
+                    self.assertGreater(self.scancutoff, id)
+                else:
+                    self.assertLess(self.scancutoff, id)