A Storm is Brewing: Announcing Cosmic Storms

A phenomenon is sweeping across the galaxy.

I’m excited to announce that Episode 2 of Stellaris: Season 08, the Cosmic Storms mechanical expansion, will be released alongside the Stellaris 3.13 ‘Vela’ update on September 10th, 2024.

Note: Tooltips shown in the video were from a development branch that has already been updated, more info next week.

https://store.steampowered.com/app/2863060/Stellaris_Cosmic_Storms/

Dark Clouds Gather …

For some time we have been unsatisfied with the Space Storm that currently exists in Stellaris. Cosmic Storms gave us the opportunity to revamp the system entirely, providing a deeper experience with strategically meaningful gameplay and beautiful upgraded visuals.

With this expansion, eight new storms with varying positive and negative effects are set to spiral across the galaxy.

We’ve also added a new weather map mode for forecasting these storms and predicting their motion, with technologies and buildings to attract, repel, or with an Ascension Perk, even create storms.

… But Every Cloud Has a Silver Lining

Storms may pass through your planets with intriguing effects, leaving behind a changed landscape or unearthing long buried treasures.

“Burn Fast and Die Radically – That’s Always Been Our Way”

What’s life without the rush?

Other empires may obsess about heinous things like economy and population. The Storm Chasers have long since mastered the challenges of their homeworld. The time has come to blast off screaming into the void.

At last, a whole new opportunity to shred the limits of experience!

Embrace the Storms

Prepare your empires to weather the cosmic tempests with three new Civics, each offering unique strategies to harness the power of the elements.


The Corporate, Hive Mind, or Machine Intelligence versions of these Civics require access to their Authorities – MegaCorp, Utopia, and either Synthetic Dawn or The Machine Age, respectively.

Uncover the Past

Embark on a journey through the annals of time with two new Precursor Event Chains, each offering a glimpse into the ancient history of the Stellaris universe. These chains weave tales of civilizations long lost to the cosmic winds, with untold secrets buried beneath the stars.

Stellaris: Cosmic Storms includes:

  • Cosmic Storms that ravage the galaxy
  • Storm Chaser Origin
  • Civics
    • Planetscapers
    • Astrometeorology
    • Storm Devotion
  • Two new Precursor narratives, with two new Relics
  • Events, Anomalies, and Archaeology Sites
  • Storm-related technologies, Edicts, Galactic community resolutions, and an Ascension Perk
Dev Diary Schedule
  • Aug 15 – Announcing Cosmic Storms
  • Aug 22 – The Storms and their Aftermaths
  • Aug 29 – Storm Chaser Origin, Civics, and Precursors
  • Sept 5 – 3.13 “Vela” and Cosmic Storms Release Notes

Cosmic Storms can be purchased as part of the Stellaris: Season 08 Expansion Pass, or as a standalone purchase for $12.99 (regional pricing may vary). It is also included as part of the Stellaris Expansion Subscription


Pre-Purchase Stellaris: Cosmic Storms alone, or with a discount as part of Stellaris: Season 08!

Written by: Burnsy - Community Leader