Agents is a Crowd Simulation addon for Blender that is made entirely in Geometry Nodes and wrapped into a proper addon.
It is a true agent-based simulation. And I think the first of its kind made in Geometry Nodes, at least with all these features packed together.
The 3 things that make it a true agent-based sim are its:
Animation State System despite current GN limitations
Individual Pathfinding
Agent-to-Agent Collision Avoidance
Agents is currently in early Beta and available on Gumroad:
I've made a video about it and how I developed all these features. It's a mix between a tutorial and a "coding adventure" in Geometry Nodes:
I'll use this topic to post updates on its development and answer your questions if you have any!