Human Error

Human Error: Episode One tells the story of a civil protection officer called Anders fighting Vortigaunts, Alien Grunts, and Alien Controllers using the Combine's forces as his allies. You can also play in Traitor & Alyx Modes with three of your friends in Human Error: Co-op. Alyx Mode is enabled...

The death of the Nihilanth threw the Xenian army into disarray, and the subsequent portal storms stranded many on Earth in the wake of Combine occupation. After once more having to endure existence beneath the totalitarian boot of their cosmic nemesis, they have searched for a way out. Now, buried...