Zero-K

Free real-time strategy with physics-driven combat and terrain manipulation

Zero-K Team · Released Apr 27, 2018

Reviews: Very Positive; 94% of 4,386
Recent reviews: Very Positive; 85% of 28 in 30 days
Playing now: 48; right now
Steam Deck: Unsupported
Last update: 3 months ago; Jun 13, 2026

What is Zero-K?

Zero-K is a science-fiction real-time strategy game where you build robot armies, command units, and reshape terrain while simulated projectiles interact with the battlefield. Its structure includes a galaxy-spanning campaign about discovering technologies, AI skirmishes, survival, and competitive or cooperative multiplayer.

For you if...

+you enjoy large-scale battles with many specialized robot units
+you value precise controls and physics-based battlefield tactics
+you want campaigns, co-op, skirmishes, and competitive matches

Not for you if...

−you mainly want to turtle behind strong static defenses
−you prefer strategy games with small, simple unit rosters
−you prioritize modern graphics in your strategy games

What players say

94% of 4,386 reviews are positive · 85% of 28 in the last 30 days

Players most often praise the unit variety, flexible command tools, tactical depth, and challenging AI. Common complaints focus on dated graphics, uneven unit balance, and weak static defenses that limit turtling.

Screenshots and trailer

Zero-K system requirements

As published by the developer.

Minimum

OS: Windows 7, 8, or 10
Processor: 2.0 GHz dual core CPU with SSE (Intel Core 2 Duo or equivalent)
Graphics: 512 MB graphics card with OpenGL 3 support (GeForce 8800 or equivalent); integrated cards may not work
Memory: 4 GB RAM
Storage: 6 GB available space