thanks for playing. In the game you are slowly going insane until you eventually cant take it anymore. We wanted to include a "How to Play" page in the main menu but unfortunately had no time left.
I don't think the game needs a "How to play", it is actually pretty to understand how to play. But I agree with Mire that the story is not clear enough. For me the game started weird, because the first time i died, had I not even seen the dead person in the room in the jet.