Unity 3 is a game development tool that has been designed to let you focus on creating amazing games.
Every game can be a masterpiece. Unity 3 delivers the technology to impress and inspire your players with everything from jaw-dropping visuals to ambient soundscapes. Even your browser game can look and feel like a state-of-the-art AAA title when it is powered by Unity 3.
Your game needs speed and Unity defines fast. Unity 3 is packed with new technology — ranging from geometry batching to occlusion culling — designed to squeeze every last bit of performance out of your next game. Regardless of your target platform, Unity will help you pull off as much as possible.
Unity has tons of full-screen image postprocessing effects built in: Sun shafts, high quality depth-of-field, lens effects, chromatic abberation, curve-driven color correction and lots more. It comes with 100 shaders ranging from the simplest (Diffuse, Glossy, etc.) to the very advanced (Self Illuminated Bumped Specular, etc.).
The Unity editor is a fully featured world builder. Just drop your source assets into the project and drag them into your scene.
Assets are previewed in the editor, so you can quickly find what you're looking for. Tags and filters aid you in quickly finding what you need.
All public variables from scripts are exposed into the editor, so object references are easy to set up and gameplay can be tweaked instantly.
Unity 3 lets you target all platforms from a single tool. Within a single project you have complete control over delivery to all platforms.