diff --git a/homeassistant/components/steam_online/coordinator.py b/homeassistant/components/steam_online/coordinator.py
index 4734ffe28c10..9404ec1670bc 100644
--- a/homeassistant/components/steam_online/coordinator.py
+++ b/homeassistant/components/steam_online/coordinator.py
@@ -26,7 +26,7 @@ class PlayerData:
 
     steamid: str
     communityvisibilitystate: int
-    profilestate: int
+    profilestate: int | None = None
     personaname: str
     commentpermission: int | None = None
     profileurl: str
@@ -34,7 +34,7 @@ class PlayerData:
     avatarmedium: str
     avatarfull: str
     avatarhash: str
-    lastlogoff: int
+    lastlogoff: int | None = None
     personastate: int
     realname: str | None = None
     primaryclanid: str | None = None
@@ -47,6 +47,7 @@ class PlayerData:
     gameid: str | None = None
     lobbysteamid: str | None = None
     gameserverip: str | None = None
+    gameserversteamid: str | None = None
     level: int | None = None
 
 
diff --git a/homeassistant/components/steam_online/sensor.py b/homeassistant/components/steam_online/sensor.py
index a0d8b19fa24c..653e23bd9a6e 100644
--- a/homeassistant/components/steam_online/sensor.py
+++ b/homeassistant/components/steam_online/sensor.py
@@ -86,14 +86,24 @@ SENSOR_DESCRIPTIONS: tuple[SteamSensorEntityDescription, ...] = (
                 if x.gameid is not None and (info := icons.get(x.gameid)) is not None
                 else None
             ),
-            "last_online": dt_util.utc_from_timestamp(x.lastlogoff),
+            "last_online": (
+                dt_util.utc_from_timestamp(x.lastlogoff)
+                if x.lastlogoff is not None
+                else None
+            ),
             "level": x.level,
         },
     ),
     SteamSensorEntityDescription(
         key=SteamSensor.LAST_ONLINE,
         translation_key=SteamSensor.LAST_ONLINE,
-        value_fn=(lambda x: dt_util.utc_from_timestamp(x.lastlogoff)),
+        value_fn=(
+            lambda x: (
+                dt_util.utc_from_timestamp(x.lastlogoff)
+                if x.lastlogoff is not None
+                else None
+            )
+        ),
         device_class=SensorDeviceClass.TIMESTAMP,
     ),
     SteamSensorEntityDescription(
diff --git a/tests/components/steam_online/conftest.py b/tests/components/steam_online/conftest.py
index 44630ada87c4..3cdd78b40613 100644
--- a/tests/components/steam_online/conftest.py
+++ b/tests/components/steam_online/conftest.py
@@ -27,6 +27,12 @@ def mock_config_entry() -> MockConfigEntry:
                 title=ACCOUNT_NAME_2,
                 unique_id=ACCOUNT_2,
             ),
+            ConfigSubentryData(
+                data={},
+                subentry_type=SUBENTRY_TYPE_FRIEND,
+                title="unconfigured_account",
+                unique_id="1234567890",
+            ),
         ],
         version=3,
     )
diff --git a/tests/components/steam_online/fixtures/GetPlayerSummaries.json b/tests/components/steam_online/fixtures/GetPlayerSummaries.json
index b6878b604d03..d7ed207a26fa 100644
--- a/tests/components/steam_online/fixtures/GetPlayerSummaries.json
+++ b/tests/components/steam_online/fixtures/GetPlayerSummaries.json
@@ -37,6 +37,20 @@
           "personastate": 2,
           "timecreated": 1303243041,
           "personastateflags": 0
+        },
+        {
+          "steamid": "1234567890",
+          "communityvisibilitystate": 3,
+          "personaname": "unconfigured_account",
+          "profileurl": "https://steamcommunity.com/profiles/1234567890/",
+          "avatar": "https://avatars.steamstatic.com/fef49e7fa7e1997310d705b2a6158ff8dc1cdfeb.jpg",
+          "avatarmedium": "https://avatars.steamstatic.com/fef49e7fa7e1997310d705b2a6158ff8dc1cdfeb_medium.jpg",
+          "avatarfull": "https://avatars.steamstatic.com/fef49e7fa7e1997310d705b2a6158ff8dc1cdfeb_full.jpg",
+          "avatarhash": "fef49e7fa7e1997310d705b2a6158ff8dc1cdfeb",
+          "personastate": 0,
+          "primaryclanid": "1234567890",
+          "timecreated": 1786993711,
+          "personastateflags": 0
         }
       ]
     }
diff --git a/tests/components/steam_online/snapshots/test_image.ambr b/tests/components/steam_online/snapshots/test_image.ambr
index 0213bd4dab8d..6f28ec3919c3 100644
--- a/tests/components/steam_online/snapshots/test_image.ambr
+++ b/tests/components/steam_online/snapshots/test_image.ambr
@@ -1030,3 +1030,514 @@
     'state': 'unavailable',
   })
 # ---
+# name: test_images[image.unconfigured_account_app_icon-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_app_icon',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'App icon',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'App icon',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.APP_ICON: 'app_icon'>,
+    'unique_id': '1234567890_app_icon',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_app_icon-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_app_icon?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account App icon',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_app_icon',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_avatar-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_avatar',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Avatar',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Avatar',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.AVATAR: 'avatar'>,
+    'unique_id': '1234567890_avatar',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_avatar-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <ImageEntityStateAttribute.ACCESS_TOKEN: 'access_token'>: '520',
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_avatar?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Avatar',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_avatar',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '2013-12-13T12:13:12+00:00',
+  })
+# ---
+# name: test_images[image.unconfigured_account_header_capsule-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_header_capsule',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Header capsule',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Header capsule',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.HEADER_CAPSULE: 'header_capsule'>,
+    'unique_id': '1234567890_header_capsule',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_header_capsule-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_header_capsule?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Header capsule',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_header_capsule',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_library_capsule-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_library_capsule',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Library capsule',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Library capsule',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.LIBRARY_CAPSULE: 'library_capsule'>,
+    'unique_id': '1234567890_library_capsule',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_library_capsule-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_library_capsule?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Library capsule',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_library_capsule',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_library_hero_capsule-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_library_hero_capsule',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Library hero capsule',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Library hero capsule',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.LIBRARY_HERO: 'library_hero'>,
+    'unique_id': '1234567890_library_hero',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_library_hero_capsule-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_library_hero_capsule?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Library hero capsule',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_library_hero_capsule',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_library_logo-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_library_logo',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Library logo',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Library logo',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.LIBRARY_LOGO: 'library_logo'>,
+    'unique_id': '1234567890_library_logo',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_library_logo-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_library_logo?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Library logo',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_library_logo',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_main_capsule-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_main_capsule',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Main capsule',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Main capsule',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.MAIN_CAPSULE: 'main_capsule'>,
+    'unique_id': '1234567890_main_capsule',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_main_capsule-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_main_capsule?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Main capsule',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_main_capsule',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_page_background-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_page_background',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Page background',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Page background',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.PAGE_BACKGROUND: 'page_background'>,
+    'unique_id': '1234567890_page_background',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_page_background-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_page_background?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Page background',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_page_background',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_small_capsule-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_small_capsule',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Small capsule',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Small capsule',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.SMALL_CAPSULE: 'small_capsule'>,
+    'unique_id': '1234567890_small_capsule',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_small_capsule-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_small_capsule?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Small capsule',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_small_capsule',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
+# name: test_images[image.unconfigured_account_vertical_capsule-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'image',
+    'entity_category': None,
+    'entity_id': 'image.unconfigured_account_vertical_capsule',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Vertical capsule',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Vertical capsule',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamImage.VERTICAL_CAPSULE: 'vertical_capsule'>,
+    'unique_id': '1234567890_vertical_capsule',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_images[image.unconfigured_account_vertical_capsule-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: '/api/image_proxy/image.unconfigured_account_vertical_capsule?token=520',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Vertical capsule',
+    }),
+    'context': <ANY>,
+    'entity_id': 'image.unconfigured_account_vertical_capsule',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unavailable',
+  })
+# ---
diff --git a/tests/components/steam_online/snapshots/test_sensor.ambr b/tests/components/steam_online/snapshots/test_sensor.ambr
index ecedc94d93b6..bcece3c4cf7f 100644
--- a/tests/components/steam_online/snapshots/test_sensor.ambr
+++ b/tests/components/steam_online/snapshots/test_sensor.ambr
@@ -470,3 +470,238 @@
     'state': 'unknown',
   })
 # ---
+# name: test_sensors[sensor.unconfigured_account-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.OPTIONS: 'options'>: list([
+        'offline',
+        'online',
+        'busy',
+        'away',
+        'snooze',
+        'looking_to_trade',
+        'looking_to_play',
+      ]),
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.unconfigured_account',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': None,
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.ENUM: 'enum'>,
+    'original_icon': None,
+    'original_name': None,
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamSensor.ACCOUNT: 'account'>,
+    'unique_id': '1234567890_account',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'created': datetime.datetime(2026, 8, 17, 12, 8, 31, tzinfo=zoneinfo.ZoneInfo(key='US/Pacific')),
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'enum',
+      <EntityStateAttribute.ENTITY_PICTURE: 'entity_picture'>: 'https://avatars.steamstatic.com/fef49e7fa7e1997310d705b2a6158ff8dc1cdfeb_full.jpg',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account',
+      'game': None,
+      'game_icon': None,
+      'game_id': None,
+      'game_image_header': None,
+      'game_image_main': None,
+      'last_online': None,
+      'level': 10,
+      <SensorEntityCapabilityAttribute.OPTIONS: 'options'>: list([
+        'offline',
+        'online',
+        'busy',
+        'away',
+        'snooze',
+        'looking_to_trade',
+        'looking_to_play',
+      ]),
+      'real_name': None,
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.unconfigured_account',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'offline',
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account_last_online-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.unconfigured_account_last_online',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Last online',
+    'options': dict({
+    }),
+    'original_device_class': <SensorDeviceClass.TIMESTAMP: 'timestamp'>,
+    'original_icon': None,
+    'original_name': 'Last online',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamSensor.LAST_ONLINE: 'last_online'>,
+    'unique_id': '1234567890_last_online',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account_last_online-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'timestamp',
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Last online',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.unconfigured_account_last_online',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unknown',
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account_level-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.unconfigured_account_level',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Level',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Level',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamSensor.LEVEL: 'level'>,
+    'unique_id': '1234567890_level',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account_level-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Level',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.MEASUREMENT: 'measurement'>,
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.unconfigured_account_level',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': '10',
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account_now_playing-entry]
+  EntityRegistryEntrySnapshot({
+    'aliases': list([
+      None,
+    ]),
+    'area_id': None,
+    'capabilities': None,
+    'config_entry_id': <ANY>,
+    'config_subentry_id': <ANY>,
+    'device_class': None,
+    'device_id': <ANY>,
+    'disabled_by': None,
+    'domain': 'sensor',
+    'entity_category': None,
+    'entity_id': 'sensor.unconfigured_account_now_playing',
+    'has_entity_name': True,
+    'hidden_by': None,
+    'icon': None,
+    'id': <ANY>,
+    'labels': set({
+    }),
+    'name': None,
+    'object_id_base': 'Now playing',
+    'options': dict({
+    }),
+    'original_device_class': None,
+    'original_icon': None,
+    'original_name': 'Now playing',
+    'platform': 'steam_online',
+    'previous_unique_id': None,
+    'suggested_object_id': None,
+    'supported_features': 0,
+    'translation_key': <SteamSensor.NOW_PLAYING: 'now_playing'>,
+    'unique_id': '1234567890_now_playing',
+    'unit_of_measurement': None,
+  })
+# ---
+# name: test_sensors[sensor.unconfigured_account_now_playing-state]
+  StateSnapshot({
+    'attributes': ReadOnlyDict({
+      'app_id': None,
+      <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'unconfigured_account Now playing',
+    }),
+    'context': <ANY>,
+    'entity_id': 'sensor.unconfigured_account_now_playing',
+    'last_changed': <ANY>,
+    'last_reported': <ANY>,
+    'last_updated': <ANY>,
+    'state': 'unknown',
+  })
+# ---