In Starfield, the spaceship is far more than just a means of transportation. It determines which systems you reach, how safely you survive space battles and how efficiently you manage cargo, loot and crew. Spaceship construction seems complex at first, but is one of the most important and powerful systems in the game once you understand the underlying mechanics.
This guide gives you a complete and fact-based explanation of ship building in Starfield. You will learn how the Ship Builder works, what the ship classes A, B and C mean, which modules are absolutely necessary, how energy, mass and range are related and how you can adapt your ship to your play style.
Important for beginners: You can’t permanently break anything in Starfield. Every spaceship can be converted or completely reconfigured at any time.
Building spaceships in Starfield: How the Ship Builder works
In Starfield, spaceships are only built or modified by ship technicians. There is no separate mode for free construction. Instead, you select an existing ship and open the Ship Builder.
If you want to completely rebuild a ship, remove all existing modules in the Ship Builder. The game explicitly allows this complete conversion as long as all mandatory modules are correctly connected at the end.
Ship classes A, B and C: Meaning and requirements
The ship class is determined exclusively by the reactor installed. It determines which modules may be installed.
Class A is suitable for light, maneuverable boats and entry-level boats.
Class B allows larger and more versatile ships. Piloting rank 3 is required.
Class C enables the strongest modules in the game. Piloting rank 4 is required.
Mandatory modules: Every spaceship needs these parts
Every spaceship requires certain core modules. If one of these is missing, the ship is not airworthy.
- Reactor – determines energy and ship class.
- Gravity drive – enables system jumps.
- Fuel tank – limits the maximum jump distance.
- Cockpit – control center.
- Docking module – for space stations and ships.
- Landing bay & landing frame – for planetary landings.
- Engines – influence speed and mobility.
The higher the mass of your ship, the more powerful the reactor, engines and landing gear need to be.
Recommended ship categories & suitable modules according to play style
Starfield has no objectively “best” spaceships. Instead, the optimal configuration depends on the style of play.
- Battleships benefit from powerful shield generators, multiple weapon systems and sufficient reactor power for continuous operation.
- Transport and merchant ships rely on large cargo holds, more powerful engines and additional landing gear to compensate for high masses.
- Exploration ships are lightweight and optimized for long jump range, good gravity drive and sufficient fuel.
Common errors in Ship Builder and what they mean
The Ship Builder reports errors if a design is not technically airworthy. These messages almost always indicate missing or incorrectly placed mandatory modules.
Typical causes are a missing docking module, an incorrectly connected landing bay or insufficient landing gear load capacity for the total mass. A missing fuel tank can also prevent certain systems from being reached.
These errors can always be rectified by adding or correctly connecting the corresponding modules.
Where to get new ship parts
Ship parts are sold by ship technicians at spaceports. Which modules are available depends on the location, your level and your skills.
You can also build the “Large Landing Pad with Shipbuilder” via Outposts. This offers access to a large selection of standard modules from various manufacturers, but does not cover every unique or site-specific component.
It is therefore necessary to visit different spaceports or dealers for certain modules.
Energy distribution: the most important practical factor
The reactor energy is distributed to the engines, weapons, shields and gravity drive and can be adjusted in Flying.
If your ship feels weak despite having good modules, this is almost always due to the energy distribution – not the construction itself.
FAQ: Frequently asked questions about spaceship construction
Are there the best spaceships in Starfield?
No. Thanks to the modular system, there are only configurations that are better suited to certain playing styles.
Why can’t I reach some systems?
As a rule, there is no jump range or sufficient fuel.
Can I convert my ship at any time?
Yes, at any time with a marine engineer.
Our conclusion
Spaceship construction in Starfield rewards planning and system understanding. If the modules, classes, mass and energy are properly coordinated, you get a ship that works reliably and is impressive in the long term.
