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Steam News17 March 20263mo ago

Orbital Elements

Hello 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.

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changedI released version 0.15-1 of sfsim . sfsim is a realistic 3D space flight simulator with an advanced single-stage-to-orbit space craft.
changedThis should make it much easier to achieve a stable orbit. For example if the periapsis is moving closer (or even was passed) in the later stages of a launch, you need to pitch up to prevent the spacecraft from dropping.

Hello 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 above surface

  • height of apoapsis above surface

  • time to periapsis

  • time to apoapsis

This should make it much easier to achieve a stable orbit. For example if the periapsis is moving closer (or even was passed) in the later stages of a launch, you need to pitch up to prevent the spacecraft from dropping.

Also Andrewkn’s Surrealism (Ambient Mix) is played when achieving low Earth orbit (both periapsis and apoapsis above 160 kilometer).

Let me know any feedback and comments in the sfsim playtest discussion forum.

Source

Steam News / 17 March 2026

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