Zero-k: A libre sci-fi RTS game, with an economy based on metal and energy

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. 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. 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. We gave ourselves the tools we always wanted to have in a game. 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.