About this game:
AQUANOX 2: REVELATION is a new story of the underwater world Aqua. In 2666 a young freighter pilot called William Drake sets out to search for the heritage of a mythical ancestor. He is looking for adventure - and finds greed, ruthlessness, merciless hatred … and also unexpected help. But very soon he has to realize that he is not the only one hunting for his ancestor's legendary treasure.

Do note its an unguaranteed key, I just know what it is because I already own it.