From the back of the box: "In Star Trek: The Role Playing Game, each player assumes the identity of a character in the Star Trek universe. While controlling the action of his character, the player leads him through one adventure after another, facing new challenges and unknown dangers. Each game is an ever-changing story as players solve near-impossible puzzles, complete dangerous missions, or simply battle to survive." admin comment for the German book see Star Trek: Das Rollenspiel