A mysterious alien artifact has been recovered and brought to a top-secret research facility in the Black Mesa. When newcomer Dr. Gordon Freeman is assigned to physically test the artifact, things go very wrong when the artifact opens a destructive and unstable portal to Xen, a planet in a different dimension. Gordon blacks out, and awakes in a now crippled and ruined research facility. When Freeman and the survivors of this ordeal discover the portal has allowed its inhabitants-deadly alien creatures-to enter the facility, they realize that they must call the government for help. The government, however, already has plans to contain this incident by silencing the witnesses. Written by
Kerwin Tsang <email@example.com>
Run, Think, Shoot, Live.
Did You Know?
The military first appear in the chapter "We've got Hostiles!" and they last appear in the chapter "Forget about Freeman!". Apparently, none of the military made it into Lambda Core. See more
Freeman, you fool!
Followed by Half-Life: Counter-Strike