FlowReactor is a high-level visual scripting editor that allows you to create professional node-based flows within Unity. It supports Unity 2020.3.33 or higher and is compatible with .NET 4.x via Odin Serializer.
With FlowReactor, developers can build AI behaviors, UI flows, dialog trees, tutorials, level scripting, game mechanics, state machines, and logic flows using a clean, intuitive workflow. The editor seamlessly integrates with Unity’s interface, offering a native look and feel with logical, easy-to-read layouts.
Key features include:
- Unlimited nested sub-graphs with custom outputs and transitions
- Custom node creation tailored to project needs, including support for coroutine nodes
- A node wizard that simplifies creating new nodes (similar to creating a C# file)
- Global and local variable management via Blackboards
- Global event system via Eventboards
- Automatic type conversion
- Scene override variables
- Scriptable object workflow for easy asset-based management
- Graph explorer to navigate graphs, locate active nodes, and detect errors
- Copy and paste nodes across graphs, minimap for navigation, zooming, grouping, and commenting
- Branch movement and automatic node distribution for improved workflow efficiency
FlowReactor is designed to be lightweight and focused, avoiding unnecessary complexity, while providing a powerful, professional environment for managing visual logic flows.
2026-03-26 00:00:00-update version:FlowReactor - High level visual scripting v2.0.4
