Production-ready modular NPC AI framework for Unity with FSM, Utility AI, LOD, pooling, combat, audio, and animation-ready architecture.Compatible with Built-in Render Pipeline, URP, and HDRP.NEXUS Core does not depend on render pipeline-specific shaders or visual features.NEXUS CoreNPC Executive Unified SystemNEXUS Core is a scalable modular NPC AI framework built for production-ready enemy behavior in Unity.Designed for scalable NPC systems with clean architecture and predictable performance.Built for games that require clean architecture, predictable AI behavior, and easy extension, NEXUS Core combines FSM and Utility AI into a flexible system that works across survival games, action games, sandbox projects, RPGs, and prototypes.Core Features3 built-in AI behavior modes: Utility AI, Persecutor, TerritorialFSM + Utility AI hybrid decision systemObject pooling with gradual preloading4-level LOD system for scalable NPC countsCombat system with attack cooldowns and health integrationSpatial audio with dynamic footstepsModular event-driven architectureConfig caching and optimized update loopsAnimation-ready design (bring your own animations)Animation ReadyNo animations are included.No Animator Controller dependency is required.NEXUS Core is designed for developers who already have their own animation workflow.It provides clean movement and state data for:Unity AnimatorAnimation Riggingcustom procedural animationthird-party animation systemsIncluded SystemsNpcControllerNpcBrainNpcNavigationNpcCombatNpcHealthNpcAudioControllerNpcVFXControllerNpcPoolNpcLODNpcConfigBehavior ModesUtility AIOrganic context-based decisions using weighted scoring.PersecutorSimple infinite chase FSM.TerritorialLimited pursuit with return-to-area logic.Performance FeaturesSquare distance checksstaggered updatesHashSet collectionspooled NPC instancesconfigurable LOD update intervalsIdeal Forenemy AI systemssurvival gamessandbox gamesdungeon projectsRPG enemiesstealth guardsmodular NPC frameworksIncluded Contentfull source codeexample scenetechnical documentationanimation Integration GuideUnity 2020.3 or newerCompatible with Unity 6NavMesh requiredFull source code includedNo animation dependencyNo procedural animation includedModular architectureFSM + Utility AI hybrid systemObject pooling includedLOD system includedEvent-driven callbacksAudio integration includedInspector-ready configurationExample demo scene included
