Archives of Nethys

Pathfinder | Starfinder

Terrestrial Vehicles | Starships


Starship Examples

Armor | Base Frames | Computers | Crew Quarters | Defensive Countermeasures | Drift Engines | Expansion Bays | Power Cores | Security | Sensors | Shields | 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.

Passenger Seating

Source Starfinder Core Rulebook pg. 299
PCU 0; Cost (in BP) 0
An expansion bay can be converted into rows of seating for passengers at no cost. A single expansion bay can hold seating for 16 Medium passengers (though seats can be built for larger creatures). This upgrade is appropriate only for taking many passengers on short trips; starships on journeys lasting multiple days should instead have guest quarters installed.