Hi all - Archsim Energy Modeling is a plugin that, for the first time, brings fully featured EnergyPlus simulations to Rhino/Grasshopper and thus link

DixieVR | Immersive Multi-User Simulation for Architectural Conception

Spider is a Grasshopper plugin written in C#.It focuses on the structural form-finding method that can simulate different models of hanging chains.

Parakeet is a collection of components focusing on Algorithmic Pattern Generation.

Stella3D is a plugin developed by Erfan Rezae & Salar Anahid, which simulates the behavior of the particles in a customizable environment.

ghKomorebi is a plugin for real-time Power Spectrum Analysis of 2D- and 3D-generated geometry or external input data

If you don't want to use one too much, download it.

Quickly layout and design customised solar facades as well as render them. This tool makes it easy to invisibly integrate PV in any project

Generates Ivy and plant 3D models.

This is a magic wheel beta app

PhylloMachine is a set of scripts/UserObject for Grasshopper to model plants using some properties of phyllotaxis. The basic idea is that

Reindeer is a parametric toolkit customized for detailing fabrication-ready timber structures.

WS-Snake is a Grasshopper plug-in which helps architects and engineers to measure wind pressure on a building envelope.

day 1 bim Tools is a setof conceptual massing and programming tools for architects

AiPlantCare gh. plugin is open-source API to our advanced cloud-based tool for predicting light for plants using state-of-the-art simulation models and cloud computing features.

BATS is a grasshopper plug-in for design and analysis of taut structures and is WIP.