# Operation: Black Mesa

Summer DB entity ID: 9b7f28f4\-f051\-4eef\-954d\-b13c49e67916

Steam App ID: 311810

Operation: Black Mesa  is a fan\-made reimagining of Gearbox's  Half\-Life™ Opposing Force  and  Half\-Life™ Blue Shift\.  Two Campaigns in One  Experience two unique single\-player campaigns taking place during the Black Mesa Incident that started off the events of the Half\-Life™ universe\. Survive a day job gone wrong as security guard Barney Calhoun\. Escape the doomed facility after a FUBAR'd mission as Corporal Adrian Shephard of the Hazardous Environment Combat Unit\. Features      Two single\-player campaigns  featuring expanded gameplay and new content\.     A plethora of engine enhancements and new graphical effects\.  The Source engine looks better than ever\.     Fast\-paced combat  with over 30 unique enemy types \- Run\. Think\. Shoot\. Live\.     Over eighteen weapons  suited for all play styles\. How will you survive Black Mesa?     Original music\.  Two games \- two soundtracks\.     Expanded narrative elements  to connect with established Half\-Life™ lore\.     Customize the game to your liking  with a mod\-friendly set of tools\.

## Game information

- Type: game

- Developer: Tripmine Studios

- Publisher: Tripmine Studios

- Release date: To be announced

- Coming soon: true

- Free to play: false

- Parent Steam app: Not collected

- Genres: Action, Indie

- Categories: Single\-player, Steam Achievements, Full controller support, Captions available, Steam Workshop, Steam Cloud, Includes level editor, Family Sharing

- Platforms: windows

- Website: Not collected

- Screenshots: https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_e0c497859fabfc775a99760f54f2ff5a569b5ad9\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_2d5c2be6f2dd4e50d34248967ea7bac3cb51a52f\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_68dff7c6c0734dfcd8df9c7b4824b57b7099343a\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_b5ba260ba4772561ebc99da4b1a1cd2d1de0a340\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_648c97dd28e3cb72af9817878631efe155604854\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_b356461b0666c37eb39b481e4bfb3f1438b7920a\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_3df16e3a31db311409a606771aaa894a4771e751\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_e6b02ec3225ff226aa1320ac52b76060ebc6e406\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_387368ee89e0656d1acf256d1a7532057b229f46\.1920x1080\.jpg?t=1772648303, https://shared\.akamai\.steamstatic\.com/store\_item\_assets/steam/apps/311810/ss\_79b173e8e63bb35b8f0d924333ba9f84d123bf1b\.1920x1080\.jpg?t=1772648303

- Price: Not collected

- Price country: Not collected

## Observed metrics

- Current players: Not collected

- Steam review count: 0

- Steam positive reviews: 0

- Steam negative reviews: 0

- Steam positive percentage: Not collected

- 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/9b7f28f4-f051-4eef-954d-b13c49e67916/player-metrics?days=7&format=markdown) · [JSON](/api/v1/entities/9b7f28f4-f051-4eef-954d-b13c49e67916/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\-24T19:57:04\.362365\+00:00

- Details observed: 2026\-09\-22T00:35:49\.987249\+00:00

- Player count observed: Not collected

- Reviews observed: 2026\-09\-22T00:35:51\.023471\+00:00

Full provenance: \{"urls":\{"price":null,"catalog":"https://api\.steampowered\.com/IStoreService/GetAppList/v1/","details":"https://store\.steampowered\.com/app/311810/","players":null,"reviews":"https://store\.steampowered\.com/appreviews/311810"\},"price":null,"source":"steam","catalog":"2026\-09\-24T19:57:04\.362365\+00:00","country":"US","details":"2026\-09\-22T00:35:49\.987249\+00:00","players":null,"reviews":"2026\-09\-22T00:35:51\.023471\+00:00","language":"en","editorial":null,"membership":"store\_catalog","observations":\{"price":null,"catalog":"b0f365fe\-6836\-459c\-840a\-16078e4333ae","details":"e0e1fdc3\-7076\-4caa\-b217\-3be3d34ba21f","players":null,"reviews":"bb913b75\-51bd\-471f\-b144\-118758f276a8"\},"reviewFilters":\{"language":"all","review\_type":"all","purchase\_type":"all","filter\_offtopic\_activity":0\}\}

Native rating methodology: \{"count":0,"average":null,"entityId":"9b7f28f4\-f051\-4eef\-954d\-b13c49e67916","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/311810/) · [JSON](/api/v1/games/9b7f28f4-f051-4eef-954d-b13c49e67916)