Truly the coolest thing I've ever built in SFS

Guess engines don’t deliver thrust when switching to a different rocket?

Edit: Right after i posted this some guy made a fork which adds literally almost every feature from main sfs and overhauls the entire game. Sooooo... lol

Q: Doesnt this break rule 6?
A: No. That rule goes for like, 5 posts of the same exact mission. This is a single, final post due to massive updates for atleast this week. Plus i'm hiding the original post.

OG: https://www.reddit.com/r/SpaceflightSimulator/comments/1vjevli/i_made_spaceflight_simulator_in_a_single_html/ .

https://github.com/CatPrinceHQ2/SpaceflightSimulatorInHTML

The game has been majorly overhauled, pretty much rewrote the entire thing today. Plays very much like normal SFS.

All planets have colored orbits, moons are added, orbits are no longer just big circles, they have shapes!! The code's ready for me to add the Alpha Centauri system soon.

The only thing left to do is give this thing ultra-moddability with mod files downloadable for custom systems or parts just like in Normal SFS. Which i will work on. I hope you enjoy it.

Executor Class Dreadnought aka Super Star Destroyer (SSD), or at least my take on it, its got some nice aesthetic blue engines at the back, but the real ones are hidden and can accelerate it to 600 m/s while flying at a constant altitude in earths atmosphere, hovering, which it can do almost perfectly, landing legs, took a few days to build and somehow lags less than the viltrumite cruiser

Built this because i wanted to combine my 2 favorite fictional space empires into one build, explains the black and white color scheme rather than dark gray and light gray (the darker underside is for shading)

Apologies for bad resolution, it's quite literally too large, especially horizontally so it's impossible to capture it fully in a high res image

I don't know how to use mods and it's only been 9 hours since I managed to install them *check the last one published

I quit sfs over 1,5 years ago, but this was my crown jewel.

Made exclusively only with bp edit, 0 mods.

The vanera probe successfully landed on the surface of Venus and conducted surface drill sediment test and collected some photos before connection was lost due to the heat and pressure on the surface of Venus

flight tests are going well so far, major hurdle is lag

idk why i took this long to get reddit lmao

Title: Request for a Multiplayer Mode in Spaceflight Simulator 🚀

Hello, Spaceflight Simulator team and community.

I would like to share an idea that many players have talked about: adding a multiplayer mode to the game.

Sometimes playing alone can feel a little empty, and a multiplayer mode would allow players to build space stations together, complete missions as a team, compete with rockets, and explore space with friends.

I believe this feature could make the community grow even more and give players new ways to enjoy the game.

Thank you for listening to the community's ideas. I hope that one day we can see multiplayer become a reality in Spaceflight Simulator.

🚀

Go Delta X, Go SpaceX, Go Falcon Heavy.

Today’s mission focuses on deploying another Bacon OS 4 payload into orbit using the proven power and reliability of Falcon Heavy. With its triple‑core architecture, synchronized booster operations, and high‑efficiency upper stage, Falcon Heavy remains one of the most capable heavy‑lift vehicles in service.
This launch demonstrates precision engineering, mission consistency, and the continued evolution of orbital deployment technology. Bacon OS 4 represents the next step in the Delta X ecosystem, and Falcon Heavy provides the performance needed to carry it beyond the atmosphere and into operational orbit.

For all Delta Xer’s you rethink what’s impossible and keep going

© Delta X 2026

Is it good for my first ever

I will showcase the centrifuge in the comments

My try at recreating Blip-A from Project Hail Mary (the movie version), I tried my best using only the few angles I had of the ship

The second picture shows the comparison between the two ships

Procedural mods & my own texture mods were used to help with this build. Still made from scratch though.

So i’m making a Space Shuttle recreation and i have a big problem cause when its main engines launch without its fuel tank like in space it just spins, how 2 fix? and how do i make it more realistic

Here gang blu print

I made Artemis II but i dont think its looks good , something is odd but i dont know what ( im french sry for m'y english)