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Customer reviews
Reviews are not translated into English yet — we are adding translations.
System requirements
Minimum
- Processor
- Quad-core Intel / AMD Processor
- Memory
- 6 GB RAM
- Graphics card
- 2 GB GDDR5 NVidia GeForce 660 / AMD R7 360 or better
- DirectX
- Version 11
- Storage
- 8 GB available space
- Sound card
- DirectX Compatible Sound Card
- Additional
- 1920x1080 Display Resolution or Higher; additional disk space will be required during Early Access
Recommended
- Processor
- Intel Core i5 or Equivalent
- Memory
- 8 GB RAM
- Graphics card
- 4 GB GDDR5 NVidia GTX 970 / AMD R9 390 or better
- DirectX
- Version 11
- Storage
- 8 GB available space
- Sound card
- DirectX Compatible Sound Card
- Additional
- 1920x1080 Display Resolution or Higher
Source: Steam · updated September 7, 2026
Siege of Centauri: Defend the Colony from Alien Invaders!
Immerse yourself in a world of strategy and action with Siege of Centauri, the latest creation from the developers at Stardock Entertainment. This game will take your breath away: you'll take command of Earth's first interstellar colony in the Proxima Centauri system after all communication is unexpectedly lost. Your mission is not only to explore the colony but also to save it from hordes of ruthless alien enemies!
In Siege of Centauri, strategic depth and thrilling gameplay combine to offer a unique experience. The objective is clear: use your arsenal of defensive structures and strategic orbital abilities to stop waves of attacking aliens. The moment of decision-making rests entirely on your shoulders!
Game Features:
- Defend the colony on Proxima Centauri through numerous exciting missions in a campaign filled with real challenges.
- Create your own missions using the workshop and share them with other players. Download new adventures from the community.
- Customize your defensive structures with a variety of upgrades. You'll need to make split-second decisions to survive—upgrade your elemental gun to slow enemies or artillery posts that leave fiery trails!
- Test your skills in Endless Mode, fighting relentless waves of enemies and challenging other players on the leaderboards.
- Face a multitude of enemies, each with unique attacks and defenses. Beware of the falling star that disables your defensive systems!
Don't miss the chance to become the colony's defender on Ashop. Purchase Siege of Centauri and receive your Steam key instantly in your account!



