Gordon Freeman, you work at the Black Mesa Research Facility as a theoretical physicist. When a routine experiment goes tragically wrong, you must battle an interdimensional alien invasion as well as a vicious military clean-up crew to save the scientist team… and the Earth!

Black Mesa – How to Fix Plug Not Appearing in On a Rail
Intro Early in the chapter On A Rail, there is a puzzle where you need to plug a plug into a wall socket in order to raise a bridge. Ordinarily, […]