Half-Life 2 - L'ombre sur Innsmouth

                    
The game begins at night in the city, the player is awakened in his hotel room by loud noises at the door and must flee his hotel. His race will bring him into the narrow alleys of the city to end in the city sewers, but also in secret rooms that suggest dark ceremonies dedicated to the mythical god Cthulhu. Finally, he finds himself in an old port where it needs to reach a lighthouse in a final attempt to survive.