From the back of the book/PDF: The year is 2268, and humans have settled Mars, the asteroid belt, and the moon systems of the outer planets. On Neptune’s moon Triton, a mysterious alien gate leads to a network of wormholes spanning hundreds of star systems. But this is a dangerous time to be alive: crime lords, despotic governments, and corrupt megacorps are all fighting to control the future. Choose your friends—and enemies—carefully. The Mission Guide is the perfect companion for the Alternity® Science Fiction Roleplaying Game. This adventure anthology and campaign sourcebook includes: • An overview of the power groups, villains, and technology of the Protostar setting. • A description of the Solar System in the 23rd century. • Five ready-to-play adventure episodes set in the Solar System . . . and beyond.