Stellaris: Federations Minimum System Requirements:
*Windows*
OS: Windows® 7 SP1 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

*MacOS*
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

*Linux*
OS: Ubuntu 16.04 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

Stellaris: Federations Recommended System Requirements :
*Windows*
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 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

*MacOS*
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*
OS: Ubuntu 16.04 x64
Processor: Intel® iCore™ i5-3570K or AMD®
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

Activation on Steam

1)      Download & install the Steam client on your computer from   here.

2)      Open the Steam client, register and login. Then, locate the Games tab on the top menu. Click that and select “Activate a Product on Steam..”

       

3)      Enter your code that is showed on the orders page of eTail. Market and and follow the steps showed to activate your game.

       

4)      The game can be monitored now and you can see it on the "Library" section on Steam. You can download and install the game now.

5)      If you need more information and support, you can click here: https://help.steampowered.com/en/wizard/HelpWithSteam