diff --git a/worlds/__init__.py b/worlds/__init__.py
index da948b9cf3..c024ee1e42 100644
--- a/worlds/__init__.py
+++ b/worlds/__init__.py
@@ -80,10 +80,10 @@ class WorldSource:
     def name(self) -> str:
         return Path(self.path).stem
 
-# AP_TEST_WORLDS (pytest only) scopes auto-loading to the named worlds; these are always loaded for the
+# AP_TEST_WORLDS scopes auto-loading to the named worlds; these are always loaded for the
 # suite's fixtures but aren't themselves worlds under test.
 _SUITE_FIXTURE_WORLDS = {"generic", "apquest"}
-_test_worlds_env = os.environ.get("AP_TEST_WORLDS") if "pytest" in sys.modules else None
+_test_worlds_env = os.environ.get("AP_TEST_WORLDS") if "pytest" in sys.modules or "unittest" in sys.modules else None
 _requested_worlds = {name.strip() for name in _test_worlds_env.split(",") if name.strip()} if _test_worlds_env else None
 test_worlds_filter = _requested_worlds | _SUITE_FIXTURE_WORLDS if _requested_worlds else None