From the back of the book: The Europa Incident is the second sourcebook detailing the Jovian Chronicles universe for Mekton II. It includes additional background material, new technical systems, optional rules and more! This book also contains a complete adventure recommended for 3-6 beginner-level players, although it is possible for two groups (up to 4 players each) to play at the same time. Also included are seven complete exo-armor designs, in addition to the deadly Lucifer Cybersatellite.