Rules v1.2.1


Attacking is the most common way to cripple, damage or destroy enemy models.

  • Each instance of a weapon may only attack once per round.
  • Each attack costs a Fire Control rating.
  • Attacks may occur before, during, or after a Move. You need not declare all attacks at the same point during a Move.
  • Each attack may target a different Model.
  • Targets must be in range and in the Arc of the weapon selected.

Fire Control

Each model has a Fire Control rating. Some Special Actions affect the Fire Control rating, which is why you must declare your intent to use a Special Action at the beginning of a Model's activation.

Each usage of an individual weapon system requires the expenditure of a single Fire Control rating. When a Model is out of Fire Control rating, it may not fire weapons even though some weapons remain unused during this activation.

Sensor Range

There are no weapon-specific ranges in Jovian Wars. It is assumed that weapons systems are designed to operate in the vast expanse of space. Instead, we model the effective range of weapons based upon a Model's Sensors rating.

Anti-Capital Ship (AC) attacks have a default range of 6". Anti-Squadron (AS) attacks have a default range of 3". These default ranges are termed "Short Range."

Any distance beyond Short Range is "Long Range." Models with Sensor ratings of 1 or more add 3" to long range for each point of Sensor rating. Some special actions allow ships to temporarily increase their Sensor ratings.

Range AC Attack AS Attack
Short 6" 3"
Long 6" + 3" x Sensor 3" + 3" x Sensor

It is therefore possible for a Model to attack a Capital Ship but not a Squadron that are equidistant from the firing Model.

Here is an example of an Alexander-class Destroyer, which has a Sensors rating of 3.

Range Diagram

The maximum Sensors Range of the Alexander is 15" for Capital Ship targets and 12" for Squadron targets.

Model Arcs

All models have four arcs that define the directions their weapons can attack in and any attack bonuses that attackers targeting them receive.


Weapons mounted on squadron models can fire in any direction. Squadrons do not have a defined facing for movement or attacks.

Capital Ships

Weapons mounted on Capital Ships have restricted weapon arcs.

  • Weapons with a T arc may fire in any direction
  • A weapon with an arc of Front (F) may fire at a target either on or between the arc lines defined by the front of its base. This is normally a 90 degree arc.
  • A weapon with an arc of Rear (R) may fire at a target either on or between the arc lines defined by the back of its base. This is normally a 90 degree arc.
  • Port/Left (P) or Starboard/Right (S) weapons may fire only either to port or starboard at a target either on or defined by the arc markings on the side of its base.

A weapon can have multiple arcs. If it does it may only select a target in one of those arcs.

Arcs Diagram