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76 players online: 21 of them fighting in 11 battles, 946 on discord

Commander wanted!

Drive giant robots, build an army of a thousand Fleas, move mountains if needed, bury the enemy at all cost!

  • Real time strategy.
  • Physically simulated units and projectiles.
  • Terrain manipulation.
  • 100+ varied units with unique abilities.
  • Singleplayer campaign.
  • Challenging, non-cheating AI.
  • Multiplayer 1v1 - 16v16, FFA, coop.
  • Multiplayer online campaign.
  • Really free, no in-game currency, no unfair multiplayer.

Fully Utilized Physics

Simulated unit and projectile physics is used to a level rarely found in a strategy game.

  • Use small nimble units to dodge slow moving projectiles.
  • Hide behind hills that block weapon fire, line of sight and radar.
  • Toss units across the map with gravity guns.
  • Transport a battleship to a hilltop - for greater views and gun range.

Manipulate the Terrain

The terrain itself is an ever-changing part of the battlefield.

  • Wreck the battlefield with craters that bog down enemy tanks.
  • Dig canals to bring your navy inland for a submarine-in-a-desert strike.
  • Build ramps, bridges, entire fortress if you wish.
  • Burn your portrait into continental crust using the planetary energy chisel.

Singleplayer Campaign and Challenging AI

Enjoy many hours of single player and coop fun with our campaign, wide selection of non-cheating AIs and a survival mode against an alien horde.

  • Explore the galaxy and discover technologies in our singleplayer campaign.
  • Face a challenging AI that is neither brain-dead nor a clairvoyant cheater.
  • Have some coop fun with friends, surviving waves of chicken-monsters.
  • Cloaking? Resurrection? Tough choices customizing your commander.

Casual and Competitive Multiplayer

Zero-K was built for multiplayer from the start, this is where you can end up being hooked for a decade.

  • Enjoying epic scale combat? Join our 16v16 team battles!
  • Looking for a common goal? Fight AIs or waves of chicken-monsters.
  • Prefer dancing on a razor's edge? Play 1v1 in ladder and tournaments.
  • Comebacks, betrayals, emotions always running high in FFA.
  • Want to fight for a bigger cause? Form a clan and join PlanetWars, competitive online campaign with web-game strategic elements, diplomacy and backstabbing.

Power to the People

We are RTS players at heart, we work for nobody. We gave ourselves the tools we always wanted to have in a game.

  • Do what you want. No limits to camera, queue or level of control.
  • Paint a shape, any shape, and units will move to assume your formation.
  • Want to spend more time on tactics? Use construction priorities.
  • Want to focus on economy? Order units to kite, strafe or zig zag bullets.

Plenty of Stuff to Explode Explore

Zero-K is a long term project and it shows, millions hours of proper multiplayer testing and dozens of people contributing ever expanding content.

  • Learn to use all of our 100+ units and play on hundreds of maps.
  • Invent the next mad team-tactics to shock enemies and make allies laugh.
  • Combine cloaking, teleports, shields, jumpjets, EMP, napalm, gravity guns, black hole launchers, mind control and self-replication.
  • Tiny flea swarm that clings to walls?
    Jumping "cans" with steam-spike?
    Buoys that hide under water to ambush ships?
    Mechs that spew fire and enjoy being tossed from air transports?
    Carrier with cute helicopters?
    Jumping Jugglenaut with dual wielding gravity guns?
    Meet them in Zero-K!

or just view the media

Client/server maintenance update 10 Oct 2018

We've applied some updates to the client and software server. This included an update to the Steamworks libraries, which may be followed by the Steam Overlay being restored in the near future.

Other fixes and new features:
  • Players can receive more than one extra commander if team player counts are sufficiently lopsided
  • Allow restricting rooms by rank
  • Unlocks page properly displays remaining donation ("kudos") points
  • Fixed donor badges showing for some non-donors
  • Fixed campaign commander losing levels
  • Fixed Steam popup for non-Steam players sometimes being partly offscreen
  • Added/updated some help menu links
  • Don't prompt for crash report after killing game's process
Posted by MYrankAdminHistidine 5 days ago - comment

2v2 Tournament September 29th 2018

A 3v3 tournament will be held at 18:00 UTC on Friday, August 31st. Click this thread link to see tournament rules, then post in the thread to sign up with your team (or as a solo standin).
Posted by AUrankAdminAquanim 27 days ago - comment

Zero-K v1.6.9.0

With this update, the Cyclops will hopefully no longer dominate the 1v1 scene. We also have a sizable number of fixes and other improvements to go with it.


  • Replaced Cyclops' combination cannon/slow beam with a single disruptor cannon
    • This is intended to enforce its role as an anti-heavy unit, reducing its effectiveness against small units


  • Added new Strike Commander skins: Chitin, Renegade


  • New sounds for various weapons
  • Zombie mode sounds are back


  • Missile silo has a "select missiles" button


  • Fixed units sometimes being permanently disabled by lightning
  • Save/load now handles morph properly
  • Fixed Outlaw (and similar) sphere GFX not appearing underwater
  • Fixed lights being cut off when slightly offscreen
  • Fixed gaps in blocks of nanoframes started with Q
  • Athena no longer appears in gesture menu
  • Workaround campaign disappearing terraform bug: restore effects of initial non-building terraform on game load
  • Smarter parsing of disabled units string
  • Fixed various Lua errors appearing ingame


  • Mex placement widget can no longer be disabled (accidentally or otherwise)
Posted by MYrankAdminHistidine 43 days ago - comment

3v3 Tournament August 31st 2018

A 3v3 tournament will be held at 18:00 UTC on Friday, August 31st. Click this thread link to see tournament rules, then post in the thread to sign up with your team (or as a solo standin).
Posted by AUrankAdminAquanim 2 months ago - comment

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