Spring is a project aiming to create a new and versatile RTS Engine. It features: Large battles limited only by the power of your computer; support for up to 32000 units. Large, highly detailed maps in which to wage those battles, fully 3D with deformable terrain, forest fires, dynamic and reflective water, and custom skyboxes. Multiple camera modes. Fully 3D combat in land, sea, and air, with realistic weapon trajectories (physics engine). Complex 3rd party AIs (Bots) that can work very competently in many cases with multiple Spring engine games and mods. A powerful GUI designed to minimize unnecessary micromanagement that is easily extensible via a Lua API.