Unity - Download ArchiveUnity download archive From this page you can download the previous versions of Unity. As always you can use the free version, or if you have a Pro license, enter in your key when prompted after installation. Please note that there is no backwards compatibility from Unity 4.0; projects made in 4.0 will not open in 3.x. However, Unity 4.0 will import and convert 3.x projects. We advise you to back
