Empyrean Frontier is a singleplayer RTS featuring massive space fleets, base building, and resource collection along with a procedurally generated campaign where the player takes a persistent fleet of units through a randomly generated galaxy map. Empyrean Frontier is built on a custom game engine by a single developer, and aims to create an innovative strategy game that is still familiar to veterans of the genre.

See the latest patch notes here: https://galdorstudios.itch.io/empyrean-frontier/devlog/87200/summer-update-104

Note: If you are launching the game through the itch.io app and get a message saying the game won't launch, click the "Show local files" button in the app, open the "EmpyreanFrontier" folder, and run EmpyreanFrontier or setup.exe to install the game. After this, you should be able to launch it through the app.
 

Official website: http://www.galdorstudios.com/

Game Features:

• Three Game Modes

  • Procedural Campaign with roguelike elements (Command a persistent fleet from battle to battle as you journey across hostile territories.)
    
  • Classic RTS Skirmish mode
  • Multi-System Conquest Skirmish mode

• Two Unique Playable Factions

• Intuitive Control Scheme

  • Draw custom formations
  • Full featured RTS Interface

• Intelligent AI

  • AI Strategically reacts to player actions
  • Tactical AI formations
  • No Resource or vision cheats

• Command Massive Fleets

  • Battle with hundreds of ships
  • 16+ unit types
  • Base Building
  • 8 unique boss fights
  • Superweapons

Recommended System Specs:
Processor: 2.2Ghz+ i5/i7
RAM: 3GB+
Graphics: DX10 capable graphics card GTX 460m or better

Recommended specs are not necessarily minimum spec, the game should run well on most users' computers, try the free demo to see.