Pick up the crowbar of research scientist Gordon Freeman, who finds himself on an alien-infested Earth being picked to the bone, its resources depleted, its populace dwindling. Freeman is thrust into the unenviable role of rescuing the world from the wrong he unleashed back at Black Mesa. And a lot of people, people he cares about, are counting on him.
Single-player Half-Life 2 mod "City 7: Toronto Conflict" has been released. Download it here.
FaceAPI can track a user's facial features via a standard webcam and immediately map them onto a virtual character.