Half-Life 2 managed to do things that few sequels do.

And a lot of people - people he cares about - are counting on him.

Freeman is thrust into the unenviable role of rescuing the world from the wrong he unleashed back at Black Mesa.

The player again picks 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.