System Requirements for Unity Authoring:
* Windows: XP SP2 or later; Mac OS X: Intel CPU & "Leopard" 10.5 or later. Note that Unity was not tested on server versions of Windows and OS X.
* Graphics card with 64 MB of VRAM and pixel shaders or four texture units. Any card made in this millennium should work.
* Using Occlusion Culling requires GPU with Occlusion Query support (some Intel GPUs do not support that).
* The rest only depends on the complexity of your projects!.
System Requirements for Unity iOS Authoring:
* An Intel-based Mac
* Mac OS X "Snow Leopard" 10.6 or later
* The rest only depends on the complexity of your projects!
System Requirements for Unity-Authored Content:
* Windows 2000 or later; Mac OS X "Panther" 10.3.9 or later.
* Pretty much any 3D graphics card, depending on complexity.
* Online games run on all browsers, including IE, Firefox, Safari, and Chrome, among others.
Home : unity3d.com
Download:
http://www.fileserve.com/file/wHuX8Bb/U3D.part01.rar
http://www.fileserve.com/file/Mn65fsy/U3D.part02.rar
http://www.fileserve.com/file/QAX7HnP/U3D.part03.rar
http://www.fileserve.com/file/cuXHccF/U3D.part04.rar
http://www.fileserve.com/file/Vfhwy2M/U3D.part05.rar
http://www.fileserve.com/file/E7R4GTd/U3D.part06.rar
http://www.fileserve.com/file/bVvuDQx/U3D.part07.rar
http://www.fileserve.com/file/ZwfSx6c/U3D.part08.rar