The Ship is primarily a multiplayer, online murder game with a unique set of game rules.The Ship is owned by the mysterious Mr X and as one of many 'lucky' recipients of a free ticket you arrive on board The Ship to find there's a catch to your luxury cruise.
Most popular community and official game content for the past week.  (?)
What does popular mean?
It means the content you're seeing has been rated up more than it has been rated down for the given time period.