Peregrine is a powerful structural layout optimization tool with a host of powerful editing and rationalization functions.

Volumetric Modelling components for Grasshopper.

Fast GPU-based physics simulation in Grasshopper supports free particles, fluids, rigid bodies, soft bodies, cloth, inflatables and custom constraints

MOLE is a Plug-in for Grasshopper which works in Grasshopper but like a Double Agent benefits ArchiCAD Users.

Zebra is a live multi agent behavior system(also known as Flocking or Swarming). Used to achieve design goals using agents.

Got curious with the GH API when looking for a way to improve how I control and export animations from GH. For Rhino 6 due to some RhinoCommon deps.

RhinoRobot is a Rhinoceros 3D offline programming and simulation plugin for all kinds of industrial robot applications.

VisualARQ adds flexible BIM features to Rhino, and speeds up the process of modeling an architectural project in 2D and 3D.