Chantier Abandonné [Abandoned Shipyard]

You and your colleagues find yourselves trapped in an abandoned construction site. Who did that ? Why ? And above all: how are you going to get out? A few clues scattered around the building as well as your site equipment left behind may help you get out of there and find the light of day. But be careful, when you think you're close to the goal after finally managing to get out of the cellar, you'll realize that deliverance is still a long way off.