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Operation: Black Mesa

PC (Microsoft Windows)

Genres: Indie, Shooter, Platform, Puzzle
Themes: Action, Science fiction, Thriller, Warfare
Game Type: Main game
Game Modes: Single-player
Player Perspective: First person
Alternate Titles: OBM, Opposing Force: Source, Guard Duty, Blue Shift: Source

Overview

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.