Jamparc_v6 & v5 are plug-ins for McNeel's Rhinoceros 6&5 that provide additional features for architectural modeling and layer management.

Transforms bitmaps into vector graphics.

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

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

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.

Lands Design is a landscaping plug-in to design gardens and green spaces that runs on Rhino 6. Lands is ideal for landscape architects.

Quick and simple tool to export shadow studies