Requires Behavior Designer (link)

Behavior Designer - Formations Pack contains 14 different behaviour tree tasks focused on group formations with Unity's NavMesh or the A* Pathfinding Project.

Agents can join and leave the formation at any time. The formation will dynamically respond to changes.

Each task is well commented and written in a generic and clean way making it very easy to integrate into your own project. This pack will continue to grow as we hear new task suggestions from the community.

Web Demo | Documentation | Unity Forum

The following tasks are included:

Column
Row
Grid
Line
Echelon
Wedge
V
Arc
Skirmisher
Swarm
Diamond
Triangle
Square
Circle