Drag-and-drop modular melee enemy AI system with ready-to-use NPCs. Includes Utility AI, FSM, procedural animation, LOD, pooling, and fully replaceable models, skins, and behaviors.Supported Render Pipeline:• Universal Render Pipeline (URP)HDRP and Built-in materials are not included by default. The package uses only six standard materials, making manual conversion to HDRP or Built-in straightforward if required for your project.Demo WebGL: itch.ioNEXUS – Modular Melee Enemy AI SystemCreate fully functional melee enemies in minutes.NEXUS is a drag-and-drop enemy AI system that includes ready-to-use NPC prefabs with combat, patrol, chase, procedural animation, audio, VFX, health, and optimization systems already configured.Just place an enemy in your scene and start building your game. Add the "Player" tag to your character and you're all set.The included NPCs are fully modular. Replace the character model, mesh, textures, skins, materials, or visual style while keeping the complete AI, combat, animation, and optimization systems.Choose between three AI behavior modes depending on your project:• Utility AI for context-aware decisions• Persecutor for relentless enemies that never stop chasing• Territorial for guards and enemies that defend an area before returning to patrolDesigned for games that require scalable enemy AI while remaining easy to customize.Ideal for:• Action RPG• Survival• Dungeon Crawlers• Hack & Slash• Horde Games• Open World• Voxel Games• Stylized GamesFeatures• Ready-to-use melee enemy prefabs• Drag-and-drop setup• Three AI behavior modes• Utility AI• FSM behaviors• Functional AI LOD system• Object Pooling with gradual preloading• Procedural animation (No Animator Controller)• Combat system• Health system• NavMesh movement• Spatial audio• VFX support• Event callback system• Modular architecture• Replace character models• Replace meshes• Replace textures• Replace skins• Replace materials• Customize movement speeds• Customize combat values• Customize detection distances• Customize animation parameters• Supports hundreds of NPCs through scalable AI systemsCompatible with Built-in Render Pipeline, URP and HDRP because the package contains gameplay systems, scripts and prefabs only.Requirements• NavMeshAI Modes• Utility AI• Persecutor FSM• Territorial FSMIncluded Systems• AI Brain• Navigation• Melee Combat• Health• Procedural Animation• Spatial Audio• VFX Controller• Object Pooling• AI LOD• Global Event SystemIncluded Scripts• NpcController• NpcBrain• NpcConfig• NpcNavigation• NpcCombat• NpcHealth• NpcAnimationController• NpcAudioController• NpcVFXController• NpcPool• NpcLOD• GameEvents• HealthSystem ExampleIncluded Prefabs• NPC_UtilityAI• NPC_Persecutor• NPC_Territorial• LOD VariantsCustomizationThe included NPCs are fully editable.You can replace:• Character models• Meshes• Skins• Textures• Materials• Audio clips• VFX• Combat values• AI parameters• Behavior mode• Movement settings• Animation parameterswithout modifying the core framework.Performance Features• Functional 4-level AI LOD• Object Pooling• Cached configuration values• Optimized Utility AI scoring• Conditional distance calculations• Optimized dictionary lookups• Modular event-driven architectureOpenAI was used as an assistance tool during parts of the package creation process, bug fixing in some scripts.All game systems, architecture, AI logic, FSM design, Utility AI decision systems, pooling, LOD systems, procedural animation logic, and implementation were fully designed, coded, integrated, tested, and validated manually by the publisher.
