PC Starsector

Starsector (formerly ?Starfarer) is an in-development open-world single-player space-combat, roleplaying, exploration, and economic game. You take the role of a space captain seeking fortune and glory however you choose.

Quote:Minimum Requirements:

• OS: Windows, Mac (OS X 10.7 or higher), or Linux
  
• Memory: 3GB system RAM
  
• Graphics: Minimum 1280768 resolution, 512 MB video memory
  
• Processor: Hard to say exactly, but nothing fancy
  
• Size: At least 400MB of HD space available
  

Download link: link

KEY: TEITW-HP9ON-A7HMK-WA6YA

• See video for exemple:
  

Source:Starsector's Website