Zero-K

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

Zero-K Team · Released Apr 27, 2018

Reviews: Very Positive; 93% of 4,712
Recent reviews: Very Positive; 96% of 31 in 30 days
Players: 93; daily peak, Nov 7, 2026
Steam Deck: Unsupported
Last update on Steam: 4 weeks ago; Oct 8, 2026
Minimum PC: 512 MB with OpenGL 3 supp…; 4 GB RAM · 6 GB disk; Full requirements

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

93% of 4,712 reviews are positive · 96% of 31 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.

Players over time

▼ -36% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 141 players on Oct 12, 2026.

Show the data

Day	Players
Nov 7, 2026	93
Nov 6, 2026	62
Nov 5, 2026	75
Nov 4, 2026	62
Nov 3, 2026	68
Nov 2, 2026	40
Nov 1, 2026	38
Oct 31, 2026	39
Oct 30, 2026	38
Oct 29, 2026	63
Oct 28, 2026	71
Oct 27, 2026	96
Oct 26, 2026	98
Oct 25, 2026	108
Oct 24, 2026	88
Oct 23, 2026	83
Oct 22, 2026	72
Oct 21, 2026	93
Oct 20, 2026	85
Oct 19, 2026	109
Oct 18, 2026	116
Oct 17, 2026	102
Oct 16, 2026	120
Oct 15, 2026	90
Oct 14, 2026	80
Oct 13, 2026	98
Oct 12, 2026	141
Oct 11, 2026	119
Oct 10, 2026	97
Oct 9, 2026	83
Oct 8, 2026	98
Oct 7, 2026	76
Oct 6, 2026	92
Oct 5, 2026	118
Oct 4, 2026	117
Oct 3, 2026	136
Oct 2, 2026	95
Oct 1, 2026	112
Sep 30, 2026	81
Sep 29, 2026	75
Sep 28, 2026	124
Sep 27, 2026	110
Sep 26, 2026	119
Sep 25, 2026	89
Sep 24, 2026	102
Sep 23, 2026	48
Sep 23, 2026	68
Sep 22, 2026	86
Sep 21, 2026	118

Screenshots and trailer

Zero-K system requirements

Minimum: 512 MB with OpenGL 3 supp…, 4 GB RAM, 6 GB of disk space.

As published by the developer.

Can my PC run Zero-K?

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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

Does Zero-K have co-op or multiplayer?

Yes: co-op online; PvP online. It also has a single-player mode. Crossplay with other platforms is declared.

Does Zero-K run on Steam Deck?

Unsupported No: Valve rates it Unsupported on Steam Deck.

Not supported on SteamOS

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, Linux
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English.

Does Zero-K use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Nov 7, 2026. How to filter AI games on Steam