Operation: Black Mesa

9 people are following this on IGDB (opens in a new tab)· recorded 18 Oct 2026

First release: Date to be confirmed
Publisher: Tripmine Studios
Engine: Source
Genres: Indie, Platform, Shooter, Puzzle · Warfare, Action, Science fiction, Thriller
Platforms: PC (Microsoft Windows)

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.

Also known as Opposing Force: Source, OBM, Guard Duty, Blue Shift: Source

Attributes

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Details

Storyline, release dates, time to beat, age ratings, modes, links, keywords

Release dates

PC (Microsoft Windows): Date to be confirmed

Game modes

Single player

Perspective

First person

External links

DiscordYouTubeXSteamTwitchOfficial site

Keywords

aliens, total conversion, fan remake

… All 3

, fan remake

How it plays Media Community Behind the game

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