Logic Driver Pro – Blueprint Editor for Dialogue, Quest, Combat & FSM Systems

Description

Build Gameplay Systems Tailored to Your Project

Create AI, combat, dialogue, quest, and other gameplay systems with a full blueprint editor built to support your project from prototype to production.

Logic Driver Pro integrates seamlessly into your development workflow, enabling you to build node-based gameplay systems through a dedicated blueprint editor. From AI behaviors to full narrative frameworks, it supports projects of any scale and is trusted by developers at every level, from indies to AAA studios. It has also been recognized with an Epic MegaGrant for its impact on Unreal Engine development.

🎥 Watch the Showcase Video

Supported Versions

Logic Driver Pro supports the latest official version of Unreal Engine. Advertised features apply to the most current release.

For full engine compatibility, visit the support page.

Core Features

Developers can create custom nodes using blueprints or C++, exposing variables on the node and encapsulating reusable logic. Each node can include:

Editor Construction Scripts – Dynamically update node properties in response to designer input.
Node Validation – Provide visual warnings or prevent compilation when conditions aren’t met.
Rule Behavior – Help enforce patterns and automate parts of the design process.

Designers may then use these nodes within Logic Driver’s state machine blueprints:

Place Nodes – Easily add nodes with context-aware placement, with rule behavior limiting available state types or preselecting transition options.

Exposed Properties – Assign values by entering defaults directly or by connecting variables, functions, or expressions.
Preview Mode – Preview the system in the state machine blueprint editor.
🆕Breakpoint Debugging – Debug the system during Play In Editor (PIE) or in Preview Mode.

Advanced Capabilities

State Stack – Combine multiple states in a sequence to execute tasks in order.
Transition Stack – Quickly generate transition expressions between different transition types.
🆕Output Variables – Organize data flow between states or back to the owning state machine blueprint.
Parallel States – Ideal for systems where multiple conditions or behaviors need to run at once.
Text Graph Properties – Drag-and-drop variables directly onto text, with rich text and localization support.
Search Tool – Find and replace property values across your project.

Content Samples & Getting Started

🆕 Combat Template now available!

Logic Driver Pro includes content samples with example setups and templates that can be easily added to your project.

Extensive documentation is available, including guides for general use, advanced features, and a complete API reference.

Under the Hood

At its core, Logic Driver is a robust Finite State Machine (FSM) framework that evaluates transition conditions and executes state logic.

If you only need a lightweight state machine, try Logic Driver Lite (Free Version) to get a feel for the core system.

Upgrading from Lite

Upgrade Instructions
Please make sure to uninstall the Lite version before installing Pro.

Licensing

Logic Driver Pro on FAB is licensed per seat and intended for individual developers or small teams.

For project-based licensing options, please refer to our licensing overview for more details.

Additional Resources

To view past customer reviews and questions, please visit Orbital Market (Unreal Market Search Engine).

Technical Details

Pro Features:

Create your own node in blueprints or C++.
Expose variables on nodes, complete with drag & drop support.
Combine custom states and execute multiple actions.
Text parsing allows variables to be dropped directly on to text.
Parallel states increase the possibilities and reduce the total number of required states.

Core Features:

New blueprint editor designed to simplify state machine creation.
Hierarchical state machines are supported directly or by reference.
Evaluate transitions conditionally or from events.
Manage as UObjects or ActorComponents for increased flexibility.
Supports run-time visual debugging with the blueprint editor to make testing easy.
C++ source code included.

Network Replicated: ActorComponents have replication support

Supported Development Platforms: Windows, Mac, Linux

Supported Target Build Platforms: Windows, Mac, Linux, Mobile. Consoles have released projects with Logic Driver, but are not tested against locally. The run-time module is intended to be cross-platform.