unreal-behavior-trees

Unreal Behavior Trees Author NPC decision-making in UE5 with Behavior Trees driven by a Blackboard: structure the tree with composites, gate branches with decorators, keep state current with services, and run it from an AIController. Targets UE 5.8 . When to use Use when building enemy/NPC AI: creating a BT_ / BB_ asset pair, structuring Selector/Sequence branches, adding decorators (conditions) and services (periodic updates), writing custom BTTask / BTService nodes, or wiring an AIController to run the tree. Use when the project has Behavior Tree ( BT_ ) and Blackboard ( BB_ ) assets and an AAIController . When not to use: the concept of AI (FSM vs BT vs steering, cross-engine) → game-ai . Pure navigation/pathing math is engine navmesh (BT's MoveTo uses it). Simple one-off logic may be cheaper as a small state machine than a full tree. Core workflow Show more Installs 839 Repository gamedev-skills/…t-skills GitHub Stars 494 First Seen Jun 27, 2026 Security Audits Gen Agent Trust Hub Pass Socket Pass Snyk Pass