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.
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About This Game

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.

Mature Content Description

The developers describe the content like this:

This game contains mature content in the form of violence and dismemberment of both humans and monsters.

These elements are a core part of gameplay, and will be encountered through the entire experience.

This game is not recommended for those under the age of 17.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows® 7 64 bit or Greater
    • Processor: 2.8 Dual Core Processor or Greater
    • Memory: 4 GB RAM
    • Graphics: NVIDIA GeForce GTX 960 or Greater
    • DirectX: Version 9.0c
    • Storage: 44 GB available space
    • Additional Notes: System Requirements Subject to Change Before Release
    Recommended:
    • Requires a 64-bit processor and operating system
    • OS: Windows® 7 64-bit or Greater
    • Processor: 3.2 Quad Core Processor or Greater
    • Memory: 6 GB RAM
    • Graphics: NVIDIA® GeForce GTX 1060 or Greater
    • DirectX: Version 9.0c
    • Storage: 44 GB available space
    • Additional Notes: System Requirements Subject to Change Before Release
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