This expansion for SSO includes additional crew members and ship locations along with a totally new 30 card mission representing the SSO being attacked by a deadly external threat, a second ship. It includes a box sufficient to hold all the SSO expansions so far (and a few more in the future) sleeved, replacement and upgraded components for the base game and an extended and improved rule book. SSO itself is a 1-6 player sci-fi survival horror game. Players must work together to survive and defeat the threat attacking the Space Ship Omega, but players win or lose as individuals. Once the threat to the ship has passed, it may be that not everyone can survive, if that happens your fellow crew may become your biggest threat. —description from the designer