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Archives of Nethys

Pathfinder RPG (1st Edition) Starfinder RPG Pathfinder RPG (2nd Edition)

Mechs | Terrestrial Vehicles | Starships | Vehicle Modifications

Starship Examples

Armor | Armor (Bulkheads) | Armor (Hulls) | Base Frames | Computers | Crew Quarters | Defensive Countermeasures | Drift Engines | Expansion Bays | Interstellar Drives | Manufacturers | Other Systems | Power Cores | Security | Sensors | Shields | Special Materials | Thrusters | Weapons | Weapon Properties

Expansion Bays

Source Starfinder Core Rulebook pg. 298
Most starships have room within their hull for one or more expansion bays, each of which can be converted to function in a wide variety of roles. Unfilled, these bays are simply storage space (and count as cargo holds), and for many large transport vessels, they remain this way. If a starship’s bays are instead used for guest quarters, the ship can serve as a transport vessel for soldiers, travelers, or refugees. If its bays are filled with medical bays and guest quarters, the ship becomes a mobile hospital.

The following options are available for most ships that have available expansion bays. If an option requires multiple bays, this is noted in its description; if it must consume PCU to function, the amount is listed in the table on page 300. An entire expansion bay must be used for a single purpose, even if it gives you multiple instances of that option. For example, if you select escape pods, that expansion bay gains all six escape pods—you can’t combine three escape pods and one life boat.

The PCU requirement and the Build Point costs of the expansion bay options can be found on page 300.

Dedicated Computer Housing

Source Starship Operations Manual pg. 25
PCU 0; Cost (in BP) 2
An expansion bay can be outfitted with power conduits and wires needed to house an additional mononode computer core (which must be purchased separately). This additional computer has an integrated control module (ICM) that is dedicated to a single starship combat crew action (for example, an engineer’s checks to divert or a gunner’s check to fire at will), chosen when the computer is installed. The ICM grants its flat circumstance bonus once per round to the check for the chosen starship combat action. This bonus does not stack with the circumstance bonus granted by the main computer’s ICM.