Operation: Black Mesa

Average Rating

No average rating yet

Platform

Windows

Series

Half-Life

Genre

first-person shooter

Engine

Source

External links

Owners

No one has this game in their library yet.

Favorites

No one has favorited this game yet.

More from this series

Cover for Half-Life: Opposing Force.

Cover for Half-Life: Blue Shift.

Cover for Half-Life: Source.