Jovian Chronicles - Game Rules

Game Rules

The most current incarnation of Jovian Chronicles is currently based on the Silhouette game engine, a streamlined set of rules already described in Heavy Gear, Dream Pod 9's other successful science fiction game. It can be played as either a role-playing game, a tactical wargame, or a hybrid integration of both.

The latest edition of the Silhouette rules is sold separately as a book titled Silhouette CORE Rulebook, which is needed to play the Jovian Chronicles role-playing game. The wargame uses the Lightning Strike II Miniature Rules, also available separately. The latter is played using miniatures and tabletop terrain, although some players prefer to use hex maps and paper counters.

Both the RPG and miniature games are built on the same basic rule mechanics. Silhouette is a realistic system that defines characters in terms of 10 base attributes (agility, knowledge, etc.), 5 derived attributes (health, etc.), and a variety of skills. Skill rolls make up the backbone of the system, which focuses on effect-based speed of play over grainy detail. The core mechanic involves rolling a number of 6-sided dice, taking the highest result, adding in modifiers for attributes and/or situation, and then comparing it to a set threshold number. If the result is higher than the threshold the test is a success; if it is lower the test is a failure. The margin by which the test succeeded (Margin of Success, MoS) or failed (Margin of Failure, MoF) helps to determine the final outcome. Combat is handled by the same system, with characters taking penalty-inflicting wounds rather than depleting a set number of health points. As a result, the system can be lethal, especially on inexperienced characters.