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Zero-K  is a FREE, multiplatform, open-source RTS game, which aims to be a dynamic, action-packed, easy to control game, full of clever strategies and constantly moving combat.

Epic Scale from tiny fleas to huge mechs and gigantic superweapons that wreak havoc - hundreds or thousands of units on the battlefield, all easily viewable with a fully zoomable camera.

Realistic Physics mean each shot is physically simulated realtime - you can actually evade bullets if you micro-manage your units! Hills and terrain affect line of sight and radar coverage, explosions create deformations, etc...

Terraforming - change the terrain: walls, ditches, ramps and more, to provide yourself with an extra tactical advantage.

Natural Balance allows units to depend on their natural characteristics and the benefits of the simulated environment, not contrived special damages to determine their effectiveness.

Unique Abilities make sure units are fun to use! From jump-jets, gravity turrets, mobile shields, burning napalm, air drops, unit morphs - we've got it all and more! You can even control your units directly in First Person Mode!

Streamlined Economy - since resources are unlimited, your economy expands gracefully as the game progresses and without boring economic micro-management, allowing you to focus on more important tasks at hand.