STEAM CATALOGUE

Operation: Black Mesa

Experience the Half-Life™ expansion packs like never before. Operation: Black Mesa features reimaginings of both Half-Life™ Opposing Force and Half-Life™ Blue Shift through two unique campaigns. How will you survive the Black Mesa Incident? It's time to choose.

Store genres

Action · Indie

Platforms

Windows

Upcoming release

View on Steam

Store metadata may change. Confirm current availability and requirements on Steam. Store genres are not community tags.