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Embark on your journey with the Storm Chasers Origin, uncover the secrets of two new Precursors, or engage with the storms themselves through the Astrometeorology and Storm Devotion Civics.

Stellaris: Cosmic Storms

In the vast expanse of the galaxy, the elements themselves are in flux.

Cosmic Storms is a Mechanical Expansion for Stellaris where the skies teem with eight new storm types filled with peril and promise. From Electric Storms harnessing the power of lightning to the formidable Nexus Storm, a galactic tempest of unparalleled magnitude, these natural phenomena challenge you to make skillful choices to steer your empire safely and profitably through the chaos.

Embark on your journey with the Storm Chasers Origin, uncover the secrets of two new Precursors, or engage with the storms themselves through the Astrometeorology and Storm Devotion Civics.

Experience the majesty and menace of these cosmic forces through beautifully rendered art and immersive audio. Navigate the tempest, harness its power, and shape your empire’s destiny. The storms are coming. Are you prepared?

©2024 and published by Paradox Interactive AB. STELLARIS and PARADOX INTERACTIVE are trademarks and/or registered trademarks of Paradox Interactive AB in Europe, the U.S., and other countries. Other trademarks, logos, and copyrights are the property of their respective owners.

NOTICE: This content requires the base game Stellaris on Steam in order to play.

Windows Minimum Requirements:

OS: Windows® 10 Home 64 Bit
Processor: Intel® iCore™ i3-530 or AMD® FX-6350
Memory: 4 GB RAM
Graphics: Nvidia® GeForce™ GTX 460 or AMD® ATI Radeon™ HD 5870 (1GB VRAM), or AMD® Radeon™ RX Vega 11 or Intel® HD Graphics 4600
DirectX: Version 9.0c
Network: Broadband Internet connection
Storage: 10 GB available space
Sound Card: Direct X 9.0c- compatible sound card
Additional Notes: Controller support: 3-button mouse, keyboard and speakers. Special multiplayer requirements: Internet Connection

Windows Recommended Requirements:

OS: Windows® 10 Home 64 Bit
Processor: Intel® iCore™ i5-3570K or AMD® Ryzen™ 5 2400G
Memory: 4 GB RAM
Graphics: Nvidia® GeForce™ GTX 560 Ti (1GB VRAM) or AMD® Radeon™ R7 370 (2 GB VRAM)
DirectX: Version 12
Network: Broadband Internet connection
Storage: 10 GB available space
Sound Card: DirectX 9.0c-compatible sound card
Additional Notes: Controller support: 3-button mouse, keyboard and speakers. Special multiplayer requirements: Internet Connection

Mac Minimum Requirements:

OS: 10.11 (El Capitan)
Processor: Intel® iCore™ i5-4570S
Memory: 8 GB RAM
Graphics: Nvidia® GeForce™ GT 750M or equivalent AMD® card with 1GB Vram
Network: Broadband Internet connection
Storage: 10 GB available space
Additional Notes: Controller support: 3-button mouse, keyboard and speakers. Special multiplayer requirements: Internet Connection

Mac Recommended Requirements:

OS: 10.13 (High Sierra)
Processor: Intel® iCore™ i5-4670
Memory: 8 GB RAM
Graphics: Nvidia® GeForce™ GTX 780M with 4GB Vram or AMD® Radeon™ R7 370 (2 GB VRAM)
Network: Broadband Internet connection
Storage: 10 GB available space
Additional Notes: Controller support: 3-button mouse, keyboard and speakers. Special multiplayer requirements: Internet Connection

Linux Minimum Requirements:

OS: Ubuntu 20.04 x64
Processor: Intel® iCore™ i3-530 or AMD® FX-6350
Memory: 4 GB RAM
Graphics: Nvidia® GeForce™ GTX 460 or AMD® ATI Radeon™ HD 5870 (1GB VRAM), or AMD® Radeon™ RX Vega 11 or Intel® HD Graphics 4600
Network: Broadband Internet connection
Storage: 12 GB available space
Sound Card: Direct X 9.0c- compatible sound card
Additional Notes: Controller support: 3-button mouse, keyboard and speakers. Special multiplayer requirements: Internet Connection

Linux Recommended Requirements:

OS: Ubuntu 20.04 x64
Processor: Intel® iCore™ i5-3570K or AMD® Ryzen™ 5 2400G
Memory: 4 GB RAM
Graphics: Nvidia® GeForce™ GTX 560 Ti (1GB VRAM) or AMD® Radeon™ R7 370 (2 GB VRAM)
Network: Broadband Internet connection
Storage: 12 GB available space
Sound Card: Direct X 9.0c- compatible sound card
Additional Notes: Controller support: 3-button mouse, keyboard and speakers. Special multiplayer requirements: Internet Connection

To activate the Steam key you've received, follow the instructions below;

First up, open the Steam client. (If you don't have it, simply click the "Install Steam" button here => Steam Store )
Sign in to your Steam account. (If you don't have one, click here to create a new one => Steam Account)
Click on the "ADD A GAME" button in the bottom corner of the client.
Then, select "Activate a product on Steam..."
Write down or copy-paste the activation key that you've received from %s in the window.
Your game is now visible in your library! Click on your "Library".
And finally, click on the game and select "Install" to start your download.