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Zero-K

Zero-K

With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.

Released Apr 27, 2018 Developer Zero-K Team Platforms Windows · Linux StrategyFree to PlayRTSIndieSimulation
View on Steam ↗ Free (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

93.8%positive3,922 reviews
Recommended · 9 found this helpful

“RTS with the best quality of life features I've ever seen. Seriously, I am literally unable to play any other strategy game, because I am spoiled from Zero-K. Extremely good UX, good keybinds, units are really smart. Only thing that is still lacking a little bit is graphics, of…”

— a player, Steam review · 104 hrs played
Recommended · 3 found this helpful

“So: start game Panic Don't know what to do make buldinig happy don't know how to build panic run commander at enemies commander dies rage quit overall great game”

— a player, Steam review · 42 hrs played
Recommended · 7 found this helpful

“Great balance, thoughtful design. Community is full of normal people who have jobs and families and aren't ♥♥♥♥♥♥♥♥♥. Its UI is so good that I can't play other RTS games anymore.”

— a player, Steam review · 431 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live count fetched 2026-07-11 12:18 UTC · history via SteamCharts.

84playing at last check
13724-hour peak
922all-time peak
0 250 500 2019 2021 2023 2025 295 avg · May 2018

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

Freecurrent · sampled 2026-07-26 08:39 UTC
Freelowest since tracking began2026-07-11

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Jul 18, 2026
Cold Take #44 - Choice vs. Automation

Automation means making tasks complete themselves without player intervention. The concept has a bit of baggage, at least in RTS, as people worry it means that a game will play itself. Some spin-off g

Jul 11, 2026
Zero-K v1.14.7.0 - Guard and Pulsing Balls

This update polishes a few mechanics and includes quite a few fixes. Singularity Reactors get their wobbly balls back and the guard command should be much more useful. Disarm no longer hard-disables j

Jun 28, 2026
Cold Take #43 - Levels of Customisation

Zero-K is extremely customisable, which is great but risks making the game unapproachable. The problem with customisation is that it asks players to optimise their own experience without necessarily g

Jun 13, 2026
Zero-K v1.14.6.0 - By Popular Demand

Space clicking wrecks and build options is back by popular demand ( https://github.com/ZeroK-RTS/Zero-K/issues/5742, https://github.com/ZeroK-RTS/Zero-K/issues/5747 and https://github.com/ZeroK-RTS/Ze

Jun 07, 2026
Cold Take #42 - Reclaimable Wrecks

The basic reclaim mechanic is as follows: units leave wrecks when they die, and these wrecks can be harvested by constructors for extra metal. This sounds like a simple enough mechanic, but the more I

Games like Zero-K

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresIndie, Simulation, Strategy, Free To Play
Player tagsStrategy · Free to Play · RTS · Indie · Simulation · Multiplayer · Real-Time · Singleplayer · Co-op · Online Co-Op · Robots · Sci-fi (SteamSpy community voting)
FeaturesSingle-player · Multi-player · PvP · Online PvP · Co-op · Online Co-op · Cross-Platform Multiplayer · Steam Cloud
LanguagesEnglish * *
Estimated owners500,000 – 1,000,000 (SteamSpy)
Official sitehttps://zero-k.info
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS *: Windows 7, 8, or 10 Processor: 2.0 GHz dual core CPU with SSE (Intel Core 2 Duo or equivalent) Memory: 4 GB RAM Graphics: 512 MB graphics card with OpenGL 3 support (GeForce 8800 or equivalent); integrated cards may not work Storage: 6 GB available space