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December 30, 2025

KSS2 v4.0.1 - Resurgence is OUT!

After a long long long long time, Kerbal Star Systems 2 returns with a renewed vision:

original star systems, creative worlds, and scientifically inspired design, no strict analogues, no copies.

Included at Launch:

  • Aethera

  • Nova Kirbani (fully reworked)

  • Kormin

  • Kerr

  • Seereon (WIP)

  • Orbel (WIP)

  • Pandor Expansion

  • Red Blalo Expansion

Highlights

  • Volumetric EVE v5 across the mod

  • Dynamic auroras, meteors & ambient sounds

  • ScaledDecorator support (sunflares, comet tails, exotic effects)

  • Parallax Continued support (no longer a dependency)

  • Custom KSS2 TUFX profile

  • Many planets remade + lots of fixes

Performance note: Full installs with all visuals require a decent PC.

Download: https://github.com/StarCrusher96/Kerbal-Star-Systems-2/releases/tag/4.0.1

Welcome back to the stars!

Comments (14)

t
the MLG MKer's · June 27, 2026

Hey I’m getting a critical parallax error that reads this model file doesn’t exist: KSS2/Core/Meshes/BlaloPlant1 on scatter: Pandor

L
Lucas Forsberg · February 17, 2026

Hey has anyone else have had problems with Volumetric Clouds? I got a weird bug where at a certain point in the atmosphere or a celestial body(usually at 50 km) the clouds just disappear for a little bit before fading back in. It’s like there’s some kind of kill sphere for the clouds because you can see the clouds on the horizon but they’re cut away right at the ground. Atleast for me it’s been kind of off putting. It breaks the immersion of the mod that is otherwise out of this world. Is this a common bug or is it something else in my case completely unrelated?

L
LUCCA G.R · January 27, 2026

Does 4.0 work with EVE volumetrics v4?

S
StarCrusher96 · January 27, 2026

We made the update with v5. Haven't tested v4 ever since.

k
kerbal space program enthusiast · January 26, 2026

nice

M
Matt · December 31, 2025

Where is the contract pack for this release located? I don't see it on github

S
StarCrusher96 · January 1, 2026

There is none for it.

A
August Cunningham · December 31, 2025

You and co did such a good job on this, was waiting for this release for quite a while :D

A
August Cunningham · December 31, 2025

PS: w hycean planet around seereon

R
Ryan Norcross · December 31, 2025

Hallo, I am fan of u

S
StarCrusher96 · December 31, 2025

hi!

T
The_J_Steam · December 30, 2025

How do I install this new version with kss2 already installed?

S
StarCrusher96 · December 30, 2025

https://github.com/StarCrusher96/Kerbal-Star-Systems-2/wiki/How-to-Install-Kerbal-Star-Systems-2

S
Stargaze · December 30, 2025

YAY