Screenshots
Watch trailer on Steam ↗FSX SpacePort
TerraBuilder · Published by TerraBuilder · Official site ↗
Last updated 27 Sept 2026
Spaceflight add-on for Microsoft Flight Simulator X
Free
Experience the thrill of piloting spacecraft in FSX SpacePort, a cutting-edge add-on from TerraBuilder that expands Microsoft Flight Simulator X into the cosmos. Dive into the intricate dynamics of space travel and logistics within this immersive simulation.
About this game
FSX SpacePort is an add-on for Microsoft's Flight Simulator X (FSX) that enables a high-fidelity simulation of spaceflight using the visual environment, assets and the ecosystem of Microsoft's Flight Simulator X.
FSX SpacePort does not rely on FSX's flight model - instead, it completely replaces it with its own physics engine which implements a sophisticated deterministic physics solver to precisely simulate spaceflight in real time.
This physics engine is applied only to the objects that were designed to be used as spacecraft, meaning - the default aircraft fly as normal, and the spacecraft objects behave under ballistic astrodynamic rules of motion.
Along with the physics engine comes a sophisticated, high-fidelity collision engine, completely user-definable through FSX's SimObject container expanded with spacecraft-specific functionality.
FSX SpacePort does not rely on FSX's flight model - instead, it completely replaces it with its own physics engine which implements a sophisticated deterministic physics solver to precisely simulate spaceflight in real time.
This physics engine is applied only to the objects that were designed to be used as spacecraft, meaning - the default aircraft fly as normal, and the spacecraft objects behave under ballistic astrodynamic rules of motion.
Along with the physics engine comes a sophisticated, high-fidelity collision engine, completely user-definable through FSX's SimObject container expanded with spacecraft-specific functionality.
System Requirements
Will my PC run this? →Minimum
Minimum:
- OS *: Windows Vista and above
- Additional Notes: Microsoft's Flight Simulator X required.
Recommended
Recommended:
- OS *: Windows Vista and above
- Additional Notes: Microsoft's Flight Simulator X required.
Supported Languages
English*
*languages with full audio support
*languages with full audio support
Latest news
Patch NotesOfficial
Update to SpacePort Demo released.
Hi everyone! Finally, an update to SpacePort Demo is here! We are pleased to announce that the free demo of our upcoming spaceflight module SpacePort for FSX and P3D series simulators has just been uploaded to our Web Site! To download, please go to our Web Site or directly to our downloads page and download "SpacePortDemo.exe" (256 Mb). The installer detects versions of the simulator (currently supporting FSX:SP2, FSX:SE, P3Dv4.x and P3Dv5.x) and if you have multiple simulator installs, you can choose for which versions you want to install. Also, we have released an accompanying PhotoRealistic scenery of Kennedy Space Center area, that goes along with the active 3D infrastructure included in the main SpacePortDemo package. It can also be downloaded from the above links, and it is 1.39Gb in size. A few notes on the SpacePortDemo package: SpacePortDemo will be installed to only one (user-chosen) location, and all the platforms that are using it will be referring to it. For P3Dx.x platforms, the installation is fairly benign and un-intrusive, thanks to the LM's super friendly and simple add-on installation scheme. The only things added to the P3Dvx.x is an entry to add-ons.xml, and a few settings overridden in P3D.CFG file (things like default ATC, traffic disabled, virtual copilot disabled, aircraft-specific warnings disabled, etc.). There is an installer option to save the copy of the P3D.CFG file before any changes are made, so that if anything goes wrong, you can revert back to the original P3D.CFG. For FSX:x platforms, the installation is a bit more involved. There are content entries added to FSX.CFG, DLL.XML and Scenery.CFG. As with the P3D install, backups of those 3 files will also be created so that the user can safely revert to the state of the sim before SpacePortDemo. Also, as with P3D install, there are entries changed in FSX.CFG, and in addition, there are FLT files copied to user directory, and some content (effects, bitmaps, sounds) copied to the FSX:...Read full article on Community Announcements (mitch66)AnnouncementsOfficial
New in-sim videos of P3D version of SpacePort now available
Check out the newest in-sim videos of the P3D version, now on our YouTube channel! We have released a batch of new in-sim videos of SpacePort's P3D version, a 64-bit version of FSX! The engine is vastly improved, the FPS has doubled to tripled, and overall, the sim behaves way smoother than the 32-bit FSX:A and FSX:SE version! First 7 clips are of different view point of launches. Next 2 clips are of the LAS system abort modes (pad and in-flight), and the last clip is of the full launch sequence, from pad launch to the stable orbit. New P3D Videos available!Read full article on Community Announcements (mitch66)AnnouncementsOfficial
SpacePort P3D Version is here!!!
As with everyone else, this pandemic situation has slowed us down somewhat, but definitely not stopped us! As a result, we have a major announcement: As of last night, we have implemented a fully functioning 64-bit version of FSX SpacePort for Lockheed Martin's Prepar3D (P3D)! This is very exciting news, because we are now supporting two platforms, with P3D being an updated, up-to-date, 64-bit industry standard for simulations! The best news is, the code base is identical, save for a few minor details in 32- vs64-bit architecture. The only thing that seems to be different is on the visual side of things, with some materials we have developed for FSX not behaving in the same way in P3D. This must be due to the updated materials and more up-to-date shaders. We will address this promptly, as we a re certain there are even better possibilities of modelling awesome effects that a proper spaceflight simulation needs! We are testing on the P3D V4, but we will soon upgrade to newest version of P3D, V5, and we see no reason it will not function in it since the code base and architecture is made to work on the most basic, shared level which is in common to both FSX and P3D. Demo update: The update to the demo has taken a back seat to P3D version, however, it is now complete! We have fixed a slew of unforeseen issues users had and it is now close to being rock solid. We will publish a FSX SpacePort Demo update shortly, and then concentrate on P3D visual issues, after which a P3D Demo will be available as well! Stay tuned - exciting things are happening!!Read full article on Community Announcements (mitch66)AnnouncementsOfficial
Another view of the SLS/Artemis Orion capsule/LAS pad abort sequence
Simulation of pad abort sequence of the Orion capsule (NASA SLS/Artemis) using FSX SpacePort spaceflight simulator Top down view, no annotations.Read full article on Community Announcements (mitch66)AnnouncementsOfficial
Pad abort sequence using Launch Abort System (LAS)
Check out the latest video available: emergency pad abort sequence. It illustrates the sequence of events in case there is a need to catapult Orion capsule and its crew to safety. We've been working on the in-sim scripting language which enables FSX SpacePort to be given instructions on what to do with the spacecraft and rocket components in given circumstances and conditions. This is the result - a fully automated sequence based not on pre-scripted animation, but real physics!Read full article on Community Announcements (mitch66)
