realm behavior editor (made by devs for devs): close to release =D 

Behavior-Tester
Behavior-Tester is a development tool designed to facilitate the real-time testing and previewing of custom game behaviors within a client setup. By allowing developers to visualize and iterate on their custom behaviors without the need for frequent server rebuilds and restarts, this tool significantly accelerates the development cycle.
Link to Project:
github.com/Nat....
Key Features
* Initialization: Quick and easy setup to get your testing environment up and running.
* Resource Management: Efficiently manage your Maps, Behaviors, Textures, and XML files through the Resources folder.
* Modular Testing: Includes modules like Projectile and Map Configuration in the Modules folder for comprehensive testing scenarios.
* Behavior Cycle Logic: Validate and refine behavior cycles with immediate feedback during runtime.
Requirements
* Client: Launch the client application to interact with and test the behaviors in real-time.