Downloading older software like requires caution. While "free download" advertisements often lead to third-party sites, the safest and most reliable way to obtain this specific version is through official Unity Technologies channels. The Official Way: Unity Download Archive
Unity maintains an extensive Download Archive where every version ever released is still available for free. To get Unity 2018 on your Mac: advertisement Unity 2018 for Mac Free Download
: Unity Hub will open and ask which modules you need, such as Mac Build Support , iOS Build Support , or Android Build Support . Key Features of Unity 2018 Downloading older software like requires caution