GPL software which renders realistic skies in real time
SUMO is a microscopic, multi-modal traffic simulation.
A planetarium software that shows a 3D simulation of the night sky
Plug&Play Hardware simulation over a virtual bus system.
Models of COVID-19 outbreak trajectories and hospital demand
RSSceSim - Reputation System Scenario Simulator
Allows you to build your own circuits and test them
An open source process simulator
Power flow library in C++
A DLX/MIPS processor simulator