AI System Concepts - Lumberyard User Guide

AI System Concepts

This topic references tools and features that are legacy. If you want to use legacy tools in Lumberyard Editor, disable the CryEntity Removal gem using the Project Configurator or the command line. To learn more about legacy features, see the Lumberyard Legacy Reference.

Key features of the AI system include the following:


  • Navigation with little or no assistance from the designers

  • Multi-layer navigation (flying, swimming, zero-gravity) or simple 2D navigation

  • Smart objects for special navigation and interactions

Individual AI

  • Easy-to-use static and dynamic covers (such as behind movable vehicles)

  • Dynamic tactical points (such as cover points, ambush points, patrol waypoints)

  • Behavior trees, to select behaviors based on values of Boolean variables

  • Customizable perception (such as vision, sound, memory, sixth sense)

Group and Global AI

  • Group behavior trees, to define group tactics

  • Formations, to move AI characters in some orderly fashion

  • Factions (such as friends, neutrals, enemies)


  • Support for streaming big maps


  • Visual AI debugger to log signals, behavior changes, goal changes, and comments

  • Behavior tree visual editor