Mars (Mixed and Augmented Reality Studio) is an advanced simulator extension for Unity. You can setup common use case workflows and test inside mock-up environments, such as a virtual bedroom or an outside setting in 1:1 scale. “Proxies” are stand-in objects which represent real-world features to be detected, e.g, horizontal plane detection representing a table-top. This can all be created without code and you set special conditions, which would otherwise be a manual task using AR Foundation. From there, you can add your own game/domain scripts and run a build as usual.