Steam

sfsim

Also known as s, sfsim, steam:3687560

sfsim is a realistic 3D space flight simulator. Use an advanced single-stage-to-orbit space craft to take off, orbit the planet, perform reentry, and land back on Earth. sfsim features a true to scale Earth planet using NOAA elevation data and procedurally generated volumetric clouds.

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Last update

19 Jun 2026

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Latest update

AnnouncementPublished 8d ago

Steam Achievements

Hi, Here is release version 0.23-1 of sfsim. I started adding achievements to sfsim. To begin with I added the following achievements: breaking the sound barrier: spacecraft exceeds speed of sound crossing the Kármán li…

2 changesGameplayUI/audio

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Update history

Browse past updates and patch notes for this game.

14updates

June 2026
Rate NeedlesHi, Here is release version 0.22-1 of sfsim. I added rate pointers for roll, pitch, and yaw angles to the MFD. The pointers are arranged around the navball in the center. Top: roll rate indicator Right: pitch rate indic…Announcement1 changeGameplay11d ago
Navball MFDHi, I have released version 0.21-1 of sfsim. The new version of sfsim shows a navball in the bottom right corner of the window. At the moment I configured it to show pitch and roll angle relative to the Earth’s horizon…Announcement2 changesGameplay15d ago
Orbit MFDHi, I have released version 0.20-1 of sfsim. sfsim now has an orbit display to make launching into an orbit easier. The orbit display shows a visualisation of the planet Earth and the orbit as well as several orbital pa…Announcement1 changeGameplay22d ago
May 2026
Reinforcement Learning of Rocket LaunchHi, I have released version 0.19-1 of sfsim. This version introduces scaling of the graphical user interface. All the user interface elements are scaled up when switching to fullscreen or back taking into account the mo…Announcement1 changeUI/audio29d ago
March 2026
Orbital ElementsHello spacers, I released version 0.15-1 of sfsim. sfsim is a realistic 3D space flight simulator with an advanced single-stage-to-orbit space craft. This version displays some orbital information: height of periapsis a…Announcement17 Mar 2026
Sound effectsHello everyone, I released version 0.11-2 of sfsim. sfsim is a realistic 3D space flight simulator with an advanced single-stage-to-orbit space craft. I have now added several sound effects and a music track: Added Andr…Event5 changesUI/audio04 Mar 2026
January 2026
RCS thrusters and renderer reworkHello everyone, I released version 0.6-1 of sfsim. sfsim is a realistic 3D space flight simulator with an advanced single-stage-to-orbit space craft. The graphics implementation is now using deferred rendering to improv…Announcement1 changePerformance04 Jan 2026
November 2025
Rocket plume for aerospike engineHi, I finally managed to release version 0.5-1 of sfsim. sfsim is a realistic 3D space flight simulator with an advanced single-stage-to-orbit space craft. The new version comes with rocket plume graphics. The plume was…Announcement3 changesPerformance19 Nov 2025
August 2025
Following camera and orbital physicsHi, Version 0.4-1 of sfsim comes with a following camera and improvements to the physics engine. The camera now follows the vehicle and the orientation is controlled using the speed over ground vector. The numerical key…Announcement25 Aug 2025
July 2025
Joystick configuration dialog releasedHi, I finally got the first version of the joystick configuration dialog working. One can configure axes and buttons in the dialog. There also is a common dead-zone setting for all joystick axes. The configuration can b…Announcement28 Jul 2025
Playtest is live!Steam post imageHi everybody! I have just pushed a playtest build to Steam and the button to join the playtest is visible on the sfsim page now. Before you join, please be aware that sfsim is still very much a work in p…Announcement03 Jul 2025

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