At this time, the combat functionality in RPG in a Box is very limited. The plan is to expand the current turn-based tactical system (and to implement other combat systems) once I've completed the upgrade to Godot 3.0. I expect this to be sometime in early 2018. In the meantime, refer to the Battle Editor and Enemy Editor pages for more information about the functionality that is currently available.

Turn-based tactical is the default combat system for RPG in a Box.