Wuse Feline Lite (a free Utility AI plugin for UE5) is released

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We at NoOpArkmy have released Wise Feline Lite a free utility AI plugin for unreal engine.

Watch a video on why utility ai is a better approach for making Ai

In Utility AI, you create a set of actions which can be executed by an agent, then the actions are scored and the action with the highest score gets selected and executed. You can choose one of the top N using random numbers or weighted random numbers too.

Each action’s score is calculated using consideration, a consideration gives a score about some fact/state in the game like am I close to enemies? do I have enough ammo? is this weapon a good one for this situation? An action can have multiple considerations and their scores are multiplied with each other to calculate the action’s score.

Wise Feline supports all of these and more features like action priorities and it has multiple built-in actions and considerations to use. It is written in C++ but fully supports making everything in blueprints.

This is the introduction video we made for the first version of this

Wise Feline (Utility AI for Unreal Engine 5)

This is a life simulation demo

Wise Feline Unreal Utility AI Life Simulation demo introduction

This is a video of our robots championship demo which uses Utility AI

Robots championship demo for Utility AI and Influence Maps for Unreal

Read the docs | X/Twitter | Discord

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Free Utility AI for Unreal - Wise Feline Lite 3.0 and 3.1

Hi all,

I’ve released two updates for Wise Feline Lite, with new ways to use it alongside Unreal’s AI and gameplay systems.

Lite uses considerations and response curves to score an agent’s actions, then selects the highest-scoring one. Actions and considerations can be made in Blueprint or C++, and the plugin includes an editor for assembling and tuning behaviors.

With 3.0, a Behavior Tree can be one of those actions. You can let utility scoring choose when a combat or patrol tree should run, alongside your other actions. New EQS support also lets you evaluate actions from query results and move to a query’s chosen destination.

The separate WFIntegrations pack is free too. Its new Smart Object classes handle claiming, using and releasing objects, including executing their Gameplay Behaviors. For projects using GAS, there are considerations for attributes, gameplay tags and whether an ability can activate, plus an action to activate it.

In 3.1, I fixed problems around unpossession, switching pawns and replacing controllers. The brain stops the active action when it loses control, and its built-ins look up their components again after a change. If your own classes cache pawn or controller data, the new OnPossessionChanged callback gives you a place to refresh it.

There are fixes for interrupted moves, behavior removal and editor copy/paste and undo as well. The UE 5.8 package also includes optional MCP tools for creating behaviors and editing their actions, considerations and curves through a connected AI agent.

The runtime updates are available for UE 5.6, 5.7 and 5.8. Lite is free and can be used in a shipped game.

Download Lite from Fab | Release notes | WFIntegrations guide

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Released 3.2 and the paid version is 70% off!

I’ve updated Wise Feline Lite to 3.2, with new movement options and fixes for runtime decisions and behavior editing.

If you haven’t tried it, Lite is the free edition of Wise Feline. You build actions and considerations in Blueprint or C++, then tune when each action becomes useful. The brain chooses the highest-scoring action as the situation changes.

In 3.2, MoveToTarget and EQS MoveTo can optionally turn toward their target after arrival. You can adjust the rotation speed and how closely the pawn needs to face its target before finishing.

The update also fixes wandering actions getting stuck after an immediately completed move, and target momentum keeping an invalid zero-score target ahead of a valid option. Removed actions and considerations are now cleaned out of behavior assets instead of remaining in their saved files.

The quick start and advanced tutorial projects have been refreshed for UE 5.8, with updated explanations and Blueprint graphs in the manual.

Get Lite free on Fab | Quick start | 3.2 release notes

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I make Wise Feline Lite, a free Utility AI plugin for Unreal. You give an NPC possible actions, then use considerations to score how useful each action is right now. You can build those actions and considerations in Blueprint or C++.

Version 3.3 adds 17 curve presets to help shape those scores. There are general shapes such as smoothstep, logistic and bell curves, plus starting points from our FPS and LifeSim samples. They become ordinary editable curve keys, so you can tune them for your own game.

This release also fixes an asynchronous Blueprint action construction problem that could stop a packaged game at startup, and a UE 5.8 Fab installation error involving the editor toolset. Recent updates improved possession changes, movement completion, target selection and behavior asset cleanup.

Lite is free and uses highest-score selection. If you are trying utility scoring for combat, routines or another kind of agent, I would be interested to hear what decisions you want it to make.

Get Wise Feline Lite