Unity Mars is now included in Unity Pro, Unity Enterprise and Unity Industrial Collection. You can now download and install Unity Mars if you have a before mentioned Unity license. Visit our new getting started page for helpful information, you can download Unity Mars here and install instructions are available in our documentation. Unity Mars continues as a stand alone product, and is still available to be purchased for Personal Edition, Plus and other users. As always, you can try Unity Mars with a 45 day free trial.