In a nutshell, this is a horror game. Just FYI....
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This won't be the typical "railshooter", but it won't be an open world either. Your characters are legitimately in charge of what they do. The environment is somewhat small, and there will be enough pushes and clues to keep things focused.
As the story progresses, more and more clues will be revealed as things steadily grow more and more horrifying. It's up to each character whether they get out dead or alive. You can go with the group or you can go alone. You can be brave, or you can be a coward. You can figure things out, or make really dumb decisions. There will be a series of events steadily escalating to action and thriller, but there will be no hand holding. It's up to you how you survive each day.
It's you vs. whatever the hell is happening here.