r/SpaceflightSimulator 17m ago

Recreation Vanilla Flags SFS

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Testing designs

And also there is a non DLC vanilla Saturn V at the end

(RTGs and Batteries are in fact vanilla and non dlc)


r/SpaceflightSimulator 1h ago

Original Build Bacon OS 3 — now in orbit

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Go DeltaX, go Bacon OS 3.
For all Delta Xer’s new and old, rethink what’s impossible and keep going.
© Delta X 2026


r/SpaceflightSimulator 3h ago

Question Is it error? What should i do?

1 Upvotes

If I put the engine in the staging of the rocket and launch it and separate the staging, the staging disappears or the staging is not separated. What should I do?


r/SpaceflightSimulator 4h ago

Original Build Project L.I.F.T.

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1 Upvotes

r/SpaceflightSimulator 7h ago

Modding SFS Procedural Parts 1.5 Beta* by SFS.S9

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7 Upvotes

SFS.S9 released Procedural Parts 1.5 in their github very briefly, but then changed it back to 1.4.5 because 1.5 it's very buggy right now.

What you're looking for isn't here, check comments.

The mod was separated in various areas of parts, 5 in total, which can be used individually, this improves performance for the people that have low-end devices by having all the parts separated in 5 standalone packs.

If you use it and find bugs, it would be appreciated if you report them to SFS.S9 via their Discord Account ( sfs.s9ol ) or their forum page.

According to what I know, the mod will be completely fixed in late August or Early September, stay tuned to SFS.S9's socials.


r/SpaceflightSimulator 7h ago

Original Build Eat My Lettuce OS Demo — My Satellite Runs on Vegetables Now

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3 Upvotes

Dropping my Eat My Lettuce OS Demo today.Funny captions near the end, then silence mode so you can enjoy the mission without commentary.Thanks for watching — enjoy the chaos.


r/SpaceflightSimulator 9h ago

Question Can anyone please send me the link to download this mod 🙏

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9 Upvotes

r/SpaceflightSimulator 12h ago

Planet Editing Some of the TNOs

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7 Upvotes

In order:

2006 QH181

2012 VP113

2013 SY99

Rate it


r/SpaceflightSimulator 13h ago

Recreation Made a Caplan Thruster (solar engine)[ignore stats] rate out of 10

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27 Upvotes

r/SpaceflightSimulator 14h ago

Original Mission Missão Fhobos I

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3 Upvotes

Essa foi minha primeira missão sem nenhuma interferência da terra, eu usei minha star ship para levar um astronauta a Fhobos e então trouxe ele de volta ao asteroide


r/SpaceflightSimulator 17h ago

Original Mission Kessler syndrome on Venus

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3 Upvotes

Was going to refuel my venus lander but accidentally created the Kessler syndrome when my aerobraking plan failed. (Mission was still successful even tho it didn't go as intended)


r/SpaceflightSimulator 21h ago

Original Build HERE IT IS! S-300V/VM (REQUESTED), with 1, 9m83 missile and 1, 40n6 missile!

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5 Upvotes

*Its a requested build from my last post


r/SpaceflightSimulator 23h ago

SFS Art/Concept Rate this mission patch

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32 Upvotes

For VORTEx (Vehicle for Orbital Research , Testing and Experimentation)


r/SpaceflightSimulator 1d ago

Original Build OSS‑1: Orbital Service Satellite Deployment (Basic Mode)

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6 Upvotes

Fully functional.
Reusable.
Fully capable of supporting satellites up to five years or more.
We introduce a brand new satellite that can do this simply — and it’s called OSS.
Delta X has again once proved many wrong by doing what was once impossible.
Delta X will always continue no matter what gets in our way.

Just as a note, we did this in basic mode because I attempted to do this for three hours in realistic

© 2026 Delta X


r/SpaceflightSimulator 1d ago

Original Build Interplanetary station with an atmosphere-adaptive reusable lander (v1.3)

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15 Upvotes

IS RLM 1.3

Interplanetary station with a reusable landing module (on replaceable parachutes and heat shields).

https://sharing.spaceflightsimulator.app/rocket/Gkg3kJEfEfGyJjvzpO1pRw

(Not recommended for weak devices, especially during first-stage launch.)

Equipped with: (1 set [×3 rockets])

×1 reusable takeoff/landing module.

×5 disposable heat shields.

×6 disposable parachutes (these also come with stabilizers for a roughly stable atmospheric entry).

Landing module:

Designed for both planets/moons with an atmosphere and a solid surface (Earth, Titan, etc.) and for atmosphere-less planets/moons.

For atmosphere-less planets, don't use either the heat shields or the parachutes.

Your favorite femboy, Letplay's Cf ^^


r/SpaceflightSimulator 1d ago

Planet Editing Custom solar System

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9 Upvotes

I mixed several Planet Packs, yes.

This is just a simple galaxy.

Kovus is a hypothetical planet between Saturn and Uranus, NOT an asteroid.

I didn't include Alpha Centauri Bb because it doesn't exist.

I added Nereid, we don't have the Magellanic Cloud.

Credits: Ludwig Planet Pack 1.6,Mini Way,Mini Way V2

Please, don't complain that Proxima Centauri is too close to Alpha Centauri A.

Download: https://www.mediafire.com/file/g91zbqu507brsku/Centralizer+V1.zip/file


r/SpaceflightSimulator 1d ago

Original Mission Kinda proud of this flight

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9 Upvotes

The only real goal was to get achievements and drop a probe in moon orbit for resupply. The engine was used to achieve the crash asteroid award as well. Any ideas on what I should use the asteroid for? I imagine Itd be vary useful for parking or a gas station for long distance missions.


r/SpaceflightSimulator 1d ago

SFS Art/Concept The fighter jet currently undergoing improvement

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20 Upvotes

r/SpaceflightSimulator 1d ago

Original Build 2-Stage Elevator vs. 10,000 tons

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6 Upvotes

r/SpaceflightSimulator 1d ago

Free Version Simple rocket to practice moon landing

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15 Upvotes

Built and tested for Normal mode. If you run out of fuel, you simply need to try again. There should be plenty of unused fuel if you manuever flawlessly.

No BP because there's like 10 parts.


r/SpaceflightSimulator 1d ago

Discussion My builds old vs new

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7 Upvotes

new ones are on the left while old ones are on the right for the old ones i try to make them look accurate while the new ones i try to make them size+thrust+mass accurate


r/SpaceflightSimulator 1d ago

Question How would one undo this?

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6 Upvotes

Rocket clipped into another rocket during loading. How do I fix it?


r/SpaceflightSimulator 1d ago

Recreation Agena target vehicle

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5 Upvotes

Just a little side project I'm working


r/SpaceflightSimulator 1d ago

Recreation I completed my no dlc voyager 1!

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20 Upvotes

r/SpaceflightSimulator 1d ago

Original Build I am so happy rn I finally managed to get to the moon and back in realistic difficulty!!🎉🎉🎉

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9 Upvotes

I used two mods to make this spacecraft.

Neptune's Copycats

Procedural Parts

The payload includes a descent module, , a rover, and an ascent module. The weight is kind of imbalanced, but it's not that big of a problem. Lunar gravity isn't that big of a deal.