what does this work with? (e.g unity, buildbox, gb studio)
It works with any engines / frameworks that support JSON file format (most of them do). See this as an example (for Unity): https://docs.unity3d.com/Manual/JSONSerialization.html
It works with any engines / frameworks that support JSON file format (most of them do). See this as an example (for Unity): https://docs.unity3d.com/Manual/JSONSerialization.html