Walkthrough: Crow • Pigeon • Sparrow • Bat
Demo
Tutorial
Playable Demo: Crow • Pigeon • Sparrow • Bat

Discord

Bring your Unreal Engine environments to life with four complete GPU-powered flocking systems in one package:

Crow • Pigeon • Sparrow • Bat

The system simulates natural group movement and flocking behavior, allowing large groups to fly together while dynamically reacting to their surroundings. Flocks can detect and avoid obstacles, react to fear triggers and nearby characters, land and take off, perch on trees, the ground, cave ceilings and other surfaces, follow leaders, travel along spline paths, create vortex and circular formations, and dynamically spawn or fly past the player during gameplay events.

All major movement, flock size, speed, behavior forces, landing, spawning, spline movement, reactions, and other parameters can be customized directly through Blueprint.

Create anything from a few ambient birds in the distance to large dynamic flocks and swarms reacting to your gameplay environment.

Each Species Has Its Own Movement Style

Crow — Heavier and more dramatic flock movement with dedicated gliding behavior, creating natural transitions between active wing flapping and smooth aerial glides.

Pigeon — Looser and more chaotic group movement, designed to reproduce the irregular and slightly unorganized behavior commonly seen in urban pigeon flocks.

Sparrow — Faster, lighter, and more agile movement with quick directional changes, making large sparrow groups feel energetic and highly dynamic.

Bat — Designed specifically for caves and darker environments. Bats can hang upside down from cave ceilings and, when disturbed, rapidly leave their resting area and rush toward or past the player as a dramatic swarm.

Four Species. Four Behaviors. One Complete System.

Core Features

• GPU-powered Niagara flocking simulation

• Natural flock movement

• Cohesion, alignment, and separation behavior

• Obstacle detection and avoidance

• Fear and reaction behaviors

• Landing and takeoff

• Tree and environmental perching

• Leader-following system

• Spline-controlled flock movement

• Timed flock spawning along splines

• Vortex and circular formations

• Dynamic gameplay flybys

• Spawn flocks around the player

• Procedural ambient sounds

• Fully customizable Blueprint parameters

• Designed for games and cinematics