# Half\-Life: Opposing Force

Summer DB entity ID: 3d31aee9\-0d2c\-446d\-840d\-81eba38769bd

Steam App ID: 50

Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman\. Experience an entirely new episode of single player action\. Meet fierce alien opponents, and experiment with new weaponry\. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences\.

## Game information

- Type: game

- Developer: Gearbox Software

- Publisher: Valve

- Release date: Nov 1, 1999

- Coming soon: false

- Free to play: false

- Parent Steam app: Not collected

- Genres: Action

- Categories: Single\-player, Multi\-player, Custom Volume Controls, Adjustable Difficulty, Playable without Timed Input, Save Anytime, Valve Anti\-Cheat enabled, Family Sharing

- Platforms: windows, mac, linux

- Website: Not collected

- Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/50/0000000155\.1920x1080\.jpg?t=1745368539, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/50/0000000156\.1920x1080\.jpg?t=1745368539, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/50/0000000157\.1920x1080\.jpg?t=1745368539, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/50/0000000158\.1920x1080\.jpg?t=1745368539, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/50/0000000159\.1920x1080\.jpg?t=1745368539

- Price: 499 minor units USD; discount 0%

- Price country: US

## Observed metrics

- Current players: 104

- Steam review count: 29057

- Steam positive reviews: 27709

- Steam negative reviews: 1348

- Steam positive percentage: 95.3608424820181%

- Summer DB rating: No native votes

Review filters: \{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}

## Player history

[Seven-day chart data as Markdown](/api/v1/entities/3d31aee9-0d2c-446d-840d-81eba38769bd/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/3d31aee9-0d2c-446d-840d-81eba38769bd/player-metrics?days=7)

Chart values are hourly observed maxima. The sampled 24-hour peak and missing intervals carry explicit coverage; history before collection is unknown.

## Sources and freshness

- Catalog membership: store\_catalog

- Catalog observed: 2026\-09\-28T16:58:32\.455488\+00:00

- Details observed: 2026\-09\-28T17:08:04\.287065\+00:00

- Player count observed: 2026\-09\-28T17:08:06\.928111\+00:00

- Reviews observed: 2026\-09\-28T17:08:06\.325058\+00:00

Full provenance: \{"urls":\{"price":"https://store\.steampowered\.com/app/50/","catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/50/","players":"https://api\.steampowered\.com/ISteamUserStats/GetNumberOfCurrentPlayers/v1/?appid=50","reviews":"https://store\.steampowered\.com/appreviews/50"\},"price":"2026\-09\-28T17:08:04\.287065\+00:00","source":"steam","catalog":"2026\-09\-28T16:58:32\.455488\+00:00","country":"US","details":"2026\-09\-28T17:08:04\.287065\+00:00","players":"2026\-09\-28T17:08:06\.928111\+00:00","reviews":"2026\-09\-28T17:08:06\.325058\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":"bfaddeed\-fa25\-4c8d\-8bde\-adb844ef0849","catalog":"e4430c12\-6b1c\-43d8\-bd77\-87a321e7bffc","details":"da8e4733\-82e5\-44bb\-aa04\-b6ca0417cc26","players":"4839038e\-4842\-499e\-b3aa\-7a661165774f","reviews":"9f9b7896\-86b9\-4389\-9ed4\-c9e6c046217c"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\}

Native rating methodology: \{"count":0,"average":null,"entityId":"3d31aee9\-0d2c\-446d\-840d\-81eba38769bd","revision":0,"observedAt":null,"methodology":"arithmetic\-v1","distribution":\[0,0,0,0,0,0,0,0,0,0\]\}

Steam reviews are not Summer DB votes. Missing data is not zero. Player counts are observations, not historical peaks. A supplemental record does not establish that a game was delisted.

[Steam store](https://store.steampowered.com/app/50/) · [JSON](/api/v1/games/3d31aee9-0d2c-446d-840d-81eba38769bd)